tag:blogger.com,1999:blog-57629611604028986092024-02-20T21:04:27.922+05:30Book DownloadIn this blog, 25.000 books will be uploaded, so far more than 1400 books are available. Books, will be added daily, please check this blog daily.Unknownnoreply@blogger.comBlogger1575125tag:blogger.com,1999:blog-5762961160402898609.post-59779639770128263762014-06-26T13:09:00.000+05:302014-06-26T13:09:09.737+05:30Pertemuan 14 Proteksi Data<div dir="ltr" style="text-align: left;" trbidi="on">
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Pertemuan 14 Proteksi Data<br />
DBMS umumnya memilikii fasilitas proteksi data, dari berbagai kemungkinan seperti;<br />
Gangguan Listrik<br />
Kerusakan Disk<br />
Kesalahan Perangkat Lunak<br />
Pengaksesan oleh orang yang tidak berhak<br />
Terjadinya dua orang atau lebih mengubah data yang sama.<br />
<br />
Dalam rangka melindungi berbagai kemungkinan tersebut, DBMS menyediakan sejumlah kontrol, antara lain;<br />
Pemulihan (Recovery)<br />
Pengamanan (Security)<br />
Integritas (Integrity)<br />
Konkurensi (Concurency)<br />
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Unknownnoreply@blogger.com1tag:blogger.com,1999:blog-5762961160402898609.post-46941162590192744122014-06-26T13:05:00.001+05:302014-06-26T13:05:20.072+05:30Pertemuan 13 Keamanan Basis Data<div dir="ltr" style="text-align: left;" trbidi="on">
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Keamanan Basis Data<br />
Mengapa masalah keamanan basis data menjadi penting?<br />
• Kemampuan menyediakan informasi dengan cepat dan akurat, merupakan kebutuhan dalam information-based society.<br />
• Sangat pentingnya informasi hanya boleh diakses oleh orang yang terotorisasi.<br />
• Adanya trend trade-secret; curi informasi ada nilai ekonomis <br />
<br />
Awalnya sebuah komputer disebut PC (Personal Computer), namun seiring dengan perkembangan bidang jaringan komputer, maka sebuah komputer tidak tepat lagi disebut PC, melainkan shared-computer digunakan untuk menyimpan classified-information.<br />
Dengan adanya LAN (computer networks) akan mempercepat akses.<br />
Basis Data mulai terhubung ke jaringan komputer<br />
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5762961160402898609.post-84937412075015463972014-06-26T12:57:00.000+05:302014-06-26T12:57:58.323+05:30Integritas Basis Data, Pertemuan 12<div dir="ltr" style="text-align: left;" trbidi="on">
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<br />
Integritas Basis Data, Pertemuan 12<br />
Informasi yang disimpan pada basisdata hanya bagus jika DBMS membantu mencegah pemasukan informasi yang tidak benar. <br />
Batasan integritas data (Data Integrity Constrain) adalah syarat yang dispesifikasikan pada skema basisdata dan mebatasi data yang dapat disimpan dalam basisdata. <br />
Jika basisdata memenuhi semua konstrain/batasan integritas yang dispesifikasikan pada skema basisdata maka basis data adalah legal<br />
<br />
DBMS memaksakan batasan integritas sehingga hanya mengijinkan basisdata legal yang akan disimpan oleh DBMS. <br />
Konstrain integritas menjamin bahwa perubahan – perubahan yang dilakukan orang yang diotorisasi tidak menghasilkan pelanggarakan konsistensi data<br />
Artinya data akan tetap terjaga, tetap akurat, konsisten dan handal<br />
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5762961160402898609.post-13275162550297275952014-06-26T12:40:00.002+05:302014-06-26T12:40:09.964+05:30Bekerja dengan SQL, Pertemuan 11<div dir="ltr" style="text-align: left;" trbidi="on">
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Bekerja dengan SQL<br />
INSERT<br />
Digunakan untuk Menambah Data dalam<br />
satu record<br />
Insert Into NamaTable (namafield1,namafield2,…)<br />
Values (‘nilaifield1’,’nilaifield2’,…)<br />
Contoh<br />
Insert Into pegawai (nip,nama) values (’01’,’andika’)<br />
Atau bisa juga bila kita mengingat seluruh bentuk field dalam tabel<br />
Insert Into namatable values (‘nilaifield1’,’nilaifield2’,…) <br />
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5762961160402898609.post-90381490862392088942014-06-26T12:33:00.000+05:302014-06-26T12:33:06.327+05:30Pertemuan 10 SQL Bagian 2, Struktur Dasar SQL<div dir="ltr" style="text-align: left;" trbidi="on">
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<br />
Struktur Dasar SQL<br />
select, digunakan untuk mendaftar atribut yang ingin dikeluarkan sebagai hasil query<br />
from, berkaitan dengan relasi mana yang akan ditelusuri<br />
where, bersifat opsional, berkaitan dengan kriteria seleksi untuk memperoleh hasil query<br />
<br />
<br />
Syntax SQL dasar dengan 3 klausa tersebut adalah:<br />
selectA1, A2, …, An<br />
from t1, t2, …, tn<br />
[where P]<br />
Dimana:<br />
A1, A2, …, An = Merupakan daftar atribut<br />
T1, t2, … , tn = Merupakan daftar tabel<br />
P = Merupakan criteria query<br />
[ ] = Merupakan tanda opsional<br />
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5762961160402898609.post-87790035248233812452014-06-26T12:25:00.005+05:302014-06-26T12:25:59.149+05:30Pertemuan 9 SQL bagian 1<div dir="ltr" style="text-align: left;" trbidi="on">
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<br />
Kependekan dari Structured Query Language<br />
Dalam English biasa dibaca SEQUEL, bukan ES-KYU-EL<br />
Mula-mula didefiniskan oleh ISO (International Standards Organization) dan ANSI (the American National Standards Institute), dikenal dengan sebutan SQL86<br />
Merupakan bahasa standar yang digunakan untuk mengakses basis data relational<br />
<br />
<br />
<br />
<br />
SQL sebagai bahasa query kurang tepat<br />
SQL tidak sekedar melakukan query (memperoleh data), tapi juga memanipulasi data<br />
SQL tidak dapat dikatakan sebagai bahasa<br />
<br />
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5762961160402898609.post-54976596140834253262014-06-25T11:02:00.000+05:302014-06-25T11:02:26.530+05:30Pertemuan 8 Normalisasi<div dir="ltr" style="text-align: left;" trbidi="on">
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<br />
<br />
Pertemuan 8 Normalisasi<br />
<br />
Kroenke mendefinisikan normalisasi sebagai proses untuk mengubah suatu relasi yang memiliki masalah tertentu ke dalam dua buah relasi atau lebih yang tida memiliki masalah tersebut. <br />
Masalah yang dimaksud oleh kroenke ini sering disebut dengan istilah anomali.<br />
<br />
Tujuan normalisasi<br />
Untuk menghilangkan kerangkapan data<br />
Untuk mengurangi kompleksitas<br />
Untuk mempermudah pemodifikasian data<br />
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5762961160402898609.post-15427539640751588382014-06-25T10:50:00.003+05:302014-06-25T10:50:58.568+05:30Register dan Counter (Pertemuan 14)<div dir="ltr" style="text-align: left;" trbidi="on">
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Register dan Counter (Pertemuan 14)<br />
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Register adalah rangkaian logika yang digunakan untuk menyimpan data. <br />
Dengan kata lain, register adalah rangkaian yang tersusun dari satu atau beberapa flip-flop yang digabungkan menjadi satu. <br />
Flip-Flop disebut juga sebagai register 1 bit. <br />
Jadi untuk menyimpan 4 bit data, register harus terdiri dari 4 buah flip-flop.<br />
Register selain digunakan sebagai penyimpan data, juga sering digunakan sebagai Counter (Pencacah) dan operasi bilangan.<br />
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Pencacah Disebut juga counter<br />
Merupakan rangkaian logika sekuensial yang berfungsi mencacah atau menghitung jumlah pulsa clock yang masuk.<br />
Contoh: pencacah modulo-4, pencacah modulo-8, pencacah modulo-10 dll<br />
Pencacah modulo-4 = 000, 001, 010, 011, 000<br />
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5762961160402898609.post-5332617069316331502014-06-25T10:43:00.002+05:302014-06-25T10:43:24.370+05:30Pertemuan 13 Logika Sekuensial<div dir="ltr" style="text-align: left;" trbidi="on">
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Adalah rangkaian logika yang keadaan outputnya selain tergantung pada keadaan input-inputnya juga tergantung keadaan output sebelumnya<br />
Contohnya flip-flop yang merupakan elemen rangkaian logika sekuensial yang berfungsi menyimpan data 1-bit, sehingga elemen ini dinamakan pula memori 1-set, flip-flop S-R, flip-flop J-K Master-slave, Flip-flop D dan flip-flop T<br />
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Flip Flop Merupakan sel biner yang mampu menyimpan data 1-bit, sehingga sel ini dinamakan pula memori 1 bit.<br />
Ciri-ciri FF adalah memiliki dua buah output yakni satu buah untuk output dari data yang disimpan dan lainnya merupakan komplemennya.<br />
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5762961160402898609.post-55267329815940466982014-06-03T09:49:00.001+05:302014-06-03T09:49:35.261+05:30Mux, Demux dan Encoder, Decoder<div dir="ltr" style="text-align: left;" trbidi="on">
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Mux, Demux dan Encoder, Decoder<br />
Rangkaian logika yang berfungsi memilih data yang ada pada inputnya untuk disalurkan ke output dengan bantuan sinyal pemilih atau sinyal kontrol<br />
Disingkat MUX<br />
Disebut juga sebagai pemilih data (data selector)<br />
Jumlah input multiplexer adalah 2 pangkat n dimana n=1,2,3… dan n adalah jumlah bit sinyal pemilih.<br />
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5762961160402898609.post-49831681505584192662014-06-03T09:44:00.001+05:302014-06-03T09:44:01.110+05:30Rangkaian Logika Kombinasional Komparator, Half Adder, Full Adder<div dir="ltr" style="text-align: left;" trbidi="on">
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Rangkaian Logika Kombinasional Komparator, Half Adder, Full Adder<br />
Salah satu jenis penerapan rangkaian kombinasional yang mempunyai fungsi utama membandingkan dua data digital. <br />
Hasil pembandingannya yaitu, sama, lebih kecil, atau lebih besar. <br />
Dari dua data digital yang hanya terdiri dari 1 bit yang dibandingkan, kemudian dapat diperluas menjadi dua data digital yang terdiri dari lebih dari 1 bit seperti dua bit, tiga bit, dst. <br />
Komparator banyak digunakan misalnya pada mesin penyeleksi surat, baik ukuran dimensinya, berat surat, kode area (berdasarkan bar-code).<br />
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5762961160402898609.post-71020658817137322222014-06-03T09:37:00.001+05:302014-06-03T09:37:14.245+05:30Peta Karnaugh Lanjutan (Pertemuan ke 10)<div dir="ltr" style="text-align: left;" trbidi="on">
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<span style="font-size: small;"> <span style="color: black; font-family: Calibri;">Mengisi</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">Peta</span><span style="color: black; font-family: Calibri;"> K </span><span style="color: black; font-family: Calibri;">dari</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">Ekspresi</span><span style="color: black; font-family: Calibri;">
Boolean</span></span><br />
<span style="font-size: small;"><span style="color: black; font-family: Calibri;">
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<span style="font-size: small;"><span style="font-family: Arial;">•</span><span style="color: black; font-family: Calibri;">Buatlah</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">ekspresinya</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">menjadi</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">bentuk</span><span style="color: black; font-family: Calibri;"> SOP</span></span></div>
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<span style="font-size: small;"><span style="font-family: Arial;">•</span><span style="color: black; font-family: Calibri;">Untuk</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">setiap</span><span style="color: black; font-family: Calibri;"> term
product, </span><span style="color: black; font-family: Calibri;">masukkan</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">angka</span><span style="color: black; font-family: Calibri;"> 1 (</span><span style="color: black; font-family: Calibri;">satu</span><span style="color: black; font-family: Calibri;">) di </span><span style="color: black; font-family: Calibri;">dalam</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">setiap</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">Peta</span><span style="color: black; font-family: Calibri;"> K
yang </span><span style="color: black; font-family: Calibri;">labelnya</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">mengandung</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">kombinasi</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">variabe</span><span style="color: black; font-family: Calibri;">
input yang </span><span style="color: black; font-family: Calibri;">yang</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">sama</span><span style="color: black; font-family: Calibri;">.</span></span></div>
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<span style="font-size: small;"><span style="font-family: Arial;">•</span><span style="color: black; font-family: Calibri;">Masukkan</span><span style="color: black; font-family: Calibri;"> 0 (</span><span style="color: black; font-family: Calibri;">nol</span><span style="color: black; font-family: Calibri;">) di </span><span style="color: black; font-family: Calibri;">dalam</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">kotak</span><span style="color: black; font-family: Calibri;"> yang
lain</span></span></div>
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5762961160402898609.post-44878832874237542082014-05-13T10:44:00.001+05:302014-05-13T10:44:15.333+05:30Peta Karnaugh<div dir="ltr" style="text-align: left;" trbidi="on">
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5762961160402898609.post-57774353118908652022014-05-13T10:38:00.002+05:302014-05-13T10:38:39.529+05:30Rangkaian Logika Kombinasi<div dir="ltr" style="text-align: left;" trbidi="on">
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<span style="font-size: small;"><span style="color: black; font-family: Calibri;">Mengapa</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">disebut</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">rangkaian</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">Logika</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">Kombinasi</span><span style="color: black; font-family: Calibri;">?</span></span></div>
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<span style="font-size: small;"><span style="color: black; font-family: Calibri;">Setiap</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">pada</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">saat</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">tertentu</span><span style="color: black; font-family: Calibri;">,
output </span><span style="color: black; font-family: Calibri;">dari</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">rangkaian</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">logika</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">tergantung</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">dari</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">kombinasi</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">inputnya</span></span></div>
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<span style="font-size: small;"><span style="color: black; font-family: Calibri;">Rangkaian</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">Logika</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">Kombinasi</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">tidak</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">memiliki</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">memori</span><span style="color: black; font-family: Calibri;">, </span><span style="color: black; font-family: Calibri;">oleh</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">karena</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">itu</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">outpunya</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">sangat</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">tergantung</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">dengan</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">kombinasi</span><span style="color: black; font-family: Calibri;">
input </span><span style="color: black; font-family: Calibri;">saat</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">itu</span></span></div>
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5762961160402898609.post-80370024745262644832014-04-14T07:01:00.001+05:302014-04-14T07:01:16.087+05:30Sistem digital 7 Studi Kasus<div dir="ltr" style="text-align: left;" trbidi="on">
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Studi Kasus<br />
•Di dalam bandara terdapat conveyor belt, tepatnya di tempat check in.<br />
•Conveyor belt ini akan mati bila terdapat tertentu.<br />
•Ada 4 sinyal logika:<br />
–Sinyal A akan tinggi bila kecepatan conveyor belt sangat cepat<br />
–Sinyal B akan tinggi bila tempat penampungan tas penuh<br />
–Sinyal C akan tinggi bila beban terlalu berat<br />
–Sinyal D akan tinggi bila kendali manual dimatikan<br />
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5762961160402898609.post-90639282046787523222014-04-14T06:57:00.001+05:302014-04-14T06:57:40.000+05:30Sistem Digital 6 Aljabar Boolean<div dir="ltr" style="text-align: left;" trbidi="on">
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-Gerbang NOR disebut juga dengan gabungan dua gerbang yaitu OR dan NOT.<br />
•Simbol gerbang NOR untuk dua masukan (input)<br />
-Gerbang NAND disebut juga dengan gabungan dua gerbang yaitu AND dan NOT.<br />
•Simbol gerbang NAND untuk dua masukan (input)<br />
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5762961160402898609.post-91425131541632177072014-04-14T06:52:00.005+05:302014-04-14T06:52:54.683+05:30Sitem Digital 5 Gerbang Logika<div dir="ltr" style="text-align: left;" trbidi="on">
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Gerbang Logika<br />
•Komponen-komponen elektronika digital biasanya disebut komponen rangkaian logika.<br />
•Rangkaian logika terdiri dari beberapa gerbang logika yang dibagi menjadi dua bagian yaitu, komponen dasar dan komponen gabungan.<br />
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5762961160402898609.post-87000288375466297362014-04-14T06:44:00.000+05:302014-04-14T06:45:18.900+05:30Sistem Digital 4 Sistem Kode<div dir="ltr" style="text-align: left;" trbidi="on">
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<span class="fullpost">Data yang diproses dalam sistem digital umumnya direpresentasikan dengan kode tertentu<br />•Terdapat beberapa sistem kode :<br />–Kode BCD<br />–Kode Excess-3 (XS-3)<br />–Kode Gray<br />–Kode 7 Segment<br />–Kode ASCII </span><br />
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Unknownnoreply@blogger.com1tag:blogger.com,1999:blog-5762961160402898609.post-68977030397180991332014-04-10T07:21:00.006+05:302014-04-10T07:21:53.648+05:30Kuliah Basis Data 7<div dir="ltr" style="text-align: left;" trbidi="on">
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Pengembangan basis data
selalu membutuhkan kerjasama dari beberapa orang dengan keahlian yang
berbeda-beda. Proses ini melibatkan pemakai, analis data, ahli komputer,
database administrator, serta wakil dari pihak manajemen yang akan
memakai sistem.<br />
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5762961160402898609.post-32171136674648892172014-04-10T07:17:00.002+05:302014-04-10T07:17:47.713+05:30Kuliah Basis Data 6<div dir="ltr" style="text-align: left;" trbidi="on">
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Tahap implementasi basis data merupakan upaya untuk membangun basis data fisik yang ditempatkan dalam media penyimpan (disk) dengan bantuan <b>DBMS</b>. Tahap ini diawali dengan melakukan transformasi dari model data yang telah selesai dibuat struktur basis data sesuai DBMS yang dipilih. Secara umum, sebuah ERD akan diwujudkan menjadi sebuah <b>basis data</b> secara fisik. Sedangkan komponen-komponen ER yang berupa himpunan entitas dan himpunan relasi akan diwujudkan menjadi <b>tabel-tabel</b>. Selanjutnya, atribut-atribut yang melekat pada masing-masing himpunan entitas dan himpunan relasi akan dinyatakan sebagai <b>field-field</b> dari tabel yang sesuai. Performansi basis data ditentukan oleh :<br />
<ul>
<li>Kualitas dan bentuk perancangan basis data</li>
<li>Kualitas mesin / komputer</li>
<li>Platform yang dipilih</li>
<li>Sistem operasi</li>
<li>DBMS yang digunakan</li>
</ul>
<a href="https://www.dropbox.com/s/xud40ghlmryypxk/06%20-%20Basis%20Data%20-%20Transformasi%20model%20data%20ke%20model%20data%20fisik.pdf">Download</a><br />
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5762961160402898609.post-75225482933020581222014-04-08T08:53:00.002+05:302014-04-08T09:00:51.641+05:30Kuliah 2 Sistem Digital Sistem Bilangan<div dir="ltr" style="text-align: left;" trbidi="on">
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<span style="font-size: small;"><span style="font-family: Arial;">•</span><span style="color: black; font-family: Calibri;">Sistem</span><span style="color: black; font-family: Calibri;">
digital </span><span style="color: black; font-family: Calibri;">bekerja</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">dengan</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">menggunakan</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">besaran</span><span style="color: black; font-family: Calibri;">
digital yang </span><span style="color: black; font-family: Calibri;">disimbolkan</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">dengan</span><span style="color: black; font-family: Calibri;"> </span><span style="color: #1f497d; font-family: Calibri;">0 </span><span style="color: #1f497d; font-family: Calibri;">untuk</span><span style="color: #1f497d; font-family: Calibri;">
level </span><span style="color: #1f497d; font-family: Calibri;">rendah</span><span style="color: #1f497d; font-family: Calibri;"> </span><span style="color: #1f497d; font-family: Calibri;">dan</span><span style="color: #1f497d; font-family: Calibri;"> 1 </span><span style="color: #1f497d; font-family: Calibri;">untuk</span><span style="color: #1f497d; font-family: Calibri;">
level </span><span style="color: #1f497d; font-family: Calibri;">tinggi</span></span></div>
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<span style="font-size: small;"><span style="font-family: Arial;">•</span><span style="color: black; font-family: Calibri;">Oleh</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">karena</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">itu</span><span style="color: black; font-family: Calibri;">, </span><span style="color: black; font-family: Calibri;">sistem</span><span style="color: black; font-family: Calibri;">
digital </span><span style="color: black; font-family: Calibri;">pada</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">dasarnya</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">menggunakan</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">sistem</span><span style="color: black; font-family: Calibri;"> </span><span style="color: #1f497d; font-family: Calibri;">bilangan</span><span style="color: #1f497d; font-family: Calibri;"> </span><span style="color: #1f497d; font-family: Calibri;">biner</span><span style="color: black; font-family: Calibri;">.</span></span></div>
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<span style="font-size: small;"><span style="font-family: Arial;">•</span><span style="color: black; font-family: Calibri;">Agar </span><span style="color: black; font-family: Calibri;">lebih</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">mudah</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">untuk</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">analisis</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">dan</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">perancangan</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">sistem</span><span style="color: black; font-family: Calibri;">
digital </span><span style="color: black; font-family: Calibri;">perlu</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">dipahami</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">mengenai</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">sistem</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">bilangan</span><span style="color: black; font-family: Calibri;">.</span></span></div>
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5762961160402898609.post-58447191096493201312014-03-27T07:13:00.001+05:302014-03-27T07:13:51.048+05:30Basis Data Pertemuan 5<div dir="ltr" style="text-align: left;" trbidi="on">
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<span style="font-size: small;"><span><span style="font-family: Arial;">•</span></span><span style="color: black; font-family: Calibri;">Penggunaan</span><span style="color: black; font-family: Calibri;"> </span><u><span style="color: #c0504d; font-family: Calibri; font-style: italic;">key </span></u><span style="color: black; font-family: Calibri;">merupakan</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">cara</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">untuk</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">membedakan</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">suatu</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">entitas</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">didalam</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">himpunan</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">entitas</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">dengan</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">entitas</span><span style="color: black; font-family: Calibri;"> lain</span></span></div>
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<span style="font-size: small;"><span><span style="font-family: Arial;">•</span></span><span style="color: black; font-family: Calibri;">Secara</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">konsep</span><span style="color: black; font-family: Calibri;">, </span><span style="color: black; font-family: Calibri;">Masing-masing</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">entitas</span><span style="color: black; font-family: Calibri;"> (</span><span style="color: black; font-family: Calibri;">nilainya</span><span style="color: black; font-family: Calibri;">) </span><span style="color: black; font-family: Calibri;">berbeda</span><span style="color: black; font-family: Calibri;">, </span><span style="color: black; font-family: Calibri;">perbedaannya</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">terlihat</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">pada</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">isi</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">dari</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">masing-masing</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">atributnya</span><span style="color: black; font-family: Calibri;">.</span></span></div>
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<span style="font-size: small;"><span><span style="font-family: Arial;">•</span></span><span style="color: black; font-family: Calibri;">Oleh</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">karena</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">itu</span><span style="color: black; font-family: Calibri;">, </span><span style="color: black; font-family: Calibri;">dibutuhkan</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">suatu</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">atribut</span><span style="color: black; font-family: Calibri;"> yang
</span><span style="color: black; font-family: Calibri;">memiliki</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">nilai</span><span style="color: black; font-family: Calibri;"> yang
</span><span style="color: black; font-family: Calibri;">menjadi</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">pembeda</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">dengan</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">entitas</span><span style="color: black; font-family: Calibri;"> lain</span></span></div>
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<span style="font-size: small;"><span><span style="font-family: Arial;">•</span></span><u><span style="color: #c0504d; font-family: Calibri; font-style: italic;">Key</span></u><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">adalah</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">satu</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">atau</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">gabungan</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">dari</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">beberapa</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">atribut</span><span style="color: black; font-family: Calibri;"> yang </span><span style="color: black; font-family: Calibri;">dapat</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">membedakan</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">semua</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">entitas</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">dalam</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">himpunan</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">entitas</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">secara</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">unik</span></span></div>
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<span style="font-size: small;"><span style="color: black; font-family: Calibri;"><a href="http://adf.ly/hdo7h">Download pertemuan 5 </a></span></span></div>
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5762961160402898609.post-24230718488974942202014-03-20T06:37:00.001+05:302014-03-20T06:37:13.084+05:30Basis Data pertemuan 4<div dir="ltr" style="text-align: left;" trbidi="on">
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<span style="font-size: small;"><span><span style="font-family: Arial;"></span></span><span style="color: black; font-family: Calibri;">Diagram
E-R = ERD (Entity Relationship Diagram)</span></span></div>
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<span style="font-size: small;"><span style="color: black; font-family: Calibri;">Diagram
E-R </span><span style="color: black; font-family: Calibri;">berupa</span><span style="color: black; font-family: Calibri;">
model data </span><span style="color: black; font-family: Calibri; font-weight: bold;">konseptual</span><span style="color: black; font-family: Calibri;">,
yang </span><span style="color: black; font-family: Calibri;">merepresentasikan</span><span style="color: black; font-family: Calibri;"> data
</span><span style="color: black; font-family: Calibri;">dalam</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">suatu</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">organisasi</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">dalam</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">bentuk</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri; font-weight: bold;">objek-objek</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">dan</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri; font-weight: bold;">hubungannya</span><span style="color: black; font-family: Calibri; font-weight: bold;">.</span></span></div>
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<span style="font-size: small;"><span style="color: black; font-family: Calibri;">Tidak</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">bergantung</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">kepada</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri; font-style: italic;">software</span><span style="color: black; font-family: Calibri;"> yang
</span><span style="color: black; font-family: Calibri;">akan</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">dipakai</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">untuk</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">mengimplementasikan</span><span style="color: black; font-family: Calibri;">
basis data</span></span></div>
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<span style="font-size: small;"><span style="color: black; font-family: Calibri;">Diagram
E-R </span><span style="color: black; font-family: Calibri;">biasa</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">digunakan</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">dalam</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">tahap</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">analisis</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">perancangan</span><span style="color: black; font-family: Calibri;">
basis data</span></span></div>
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<span style="font-size: small;"><span style="color: black; font-family: Calibri;"> </span></span></div>
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<span style="font-size: small;"><span style="color: black; font-family: Calibri;"><a href="http://adf.ly/gfy4E">Download Pertemuan 4 </a></span></span></div>
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5762961160402898609.post-7090372510720855462014-03-13T06:56:00.001+05:302014-03-13T06:56:20.122+05:30Basis Data Pertemuan 3<div dir="ltr" style="text-align: left;" trbidi="on">
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh1RKC4HBW024jHmIRi_4ag0YAnVdo7qK5DvjwWlsgAkMchtysNIHRvzYWdyGbEzNHzOZBgXP7N38puT79BJsp3_l6F51BbMQP0T4VSR2XlqjxRaNPdyx0K6ZPniun5q_b78qfTCEu-246z/s1600/big_model.gif" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh1RKC4HBW024jHmIRi_4ag0YAnVdo7qK5DvjwWlsgAkMchtysNIHRvzYWdyGbEzNHzOZBgXP7N38puT79BJsp3_l6F51BbMQP0T4VSR2XlqjxRaNPdyx0K6ZPniun5q_b78qfTCEu-246z/s1600/big_model.gif" height="223" width="320" /></a></div>
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<span style="font-size: small;"><span style="color: black; font-family: Calibri;"> </span></span></div>
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<span style="font-size: small;"><span style="color: black; font-family: Calibri;"> </span></span></div>
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<span style="font-size: small;"><span style="color: black; font-family: Calibri;">Adalah</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">Kumpulan
</span><span style="color: black; font-family: Calibri;">perangkat</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">konseptual</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">untuk</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">menggambarkan</span><span style="color: black; font-family: Calibri;">
data, </span><span style="color: black; font-family: Calibri;">hubungan</span><span style="color: black; font-family: Calibri;">
data, </span><span style="color: black; font-family: Calibri;">semantik</span><span style="color: black; font-family: Calibri;"> data
</span><span style="color: black; font-family: Calibri;">dan</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">batasan</span><span style="color: black; font-family: Calibri;"> data</span>. <span style="color: black; font-family: Calibri;">Model
data lebih tepat -> “model data lojik”</span></span></div>
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<span style="font-size: small;"><span><span style="font-family: Arial;">•</span></span><span style="color: black; font-family: Calibri;">Model
Data </span><span style="color: black; font-family: Calibri;">Berorientasi</span><span style="color: black; font-family: Calibri;"> </span><span style="color: black; font-family: Calibri;">objek</span></span></div>
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<span style="font-size: small;"><span><span style="font-family: Arial;">–</span></span><span style="color: black; font-family: Calibri;">ERD</span></span></div>
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<span style="font-size: small;"><span><span style="font-family: Arial;">–</span></span><span style="color: black; font-family: Calibri;">Semantik</span></span></div>
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<span style="font-size: small;"><span><span style="font-family: Arial;">•</span></span><span style="color: black; font-family: Calibri;">Model
Data </span><span style="color: black; font-family: Calibri;">Berbasis</span><span style="color: black; font-family: Calibri;">
record</span></span></div>
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<span style="font-size: small;"><span><span style="font-family: Arial;">–</span></span><span style="color: black; font-family: Calibri;">Relational</span></span></div>
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<span style="font-size: small;"><span><span style="font-family: Arial;">–</span></span><span style="color: black; font-family: Calibri;">Hirarki</span></span></div>
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<span style="font-size: small;"><span><span style="font-family: Arial;">–</span></span><span style="color: black; font-family: Calibri;">Jaringan</span></span></div>
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<span style="font-size: small;"><span style="color: black; font-family: Calibri;"> </span></span></div>
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<span style="font-size: small;"><span style="color: black; font-family: Calibri;"><a href="http://adf.ly/fgqJj">Download Materi 3 </a></span></span></div>
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5762961160402898609.post-31914510303768751602014-03-11T07:55:00.002+05:302014-03-11T07:55:33.801+05:30Sistem Bilangan (Oktal dan BCD) <div dir="ltr" style="text-align: left;" trbidi="on">
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQXUsd_Yo8cn8LLotaJFI-PRWMk7cuFScE6RboUrnsR1DZH3hEm_GVTwPwwuh1sf02aXg5SugIo6I7dNEK30kyRYeCKHAMI9IW1RCr-58LlxH7A_Hx4qUG6BJ1WdHf0-izxpCEMBPfwCnU/s1600/oktal.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQXUsd_Yo8cn8LLotaJFI-PRWMk7cuFScE6RboUrnsR1DZH3hEm_GVTwPwwuh1sf02aXg5SugIo6I7dNEK30kyRYeCKHAMI9IW1RCr-58LlxH7A_Hx4qUG6BJ1WdHf0-izxpCEMBPfwCnU/s1600/oktal.jpg" height="312" width="320" /></a></div>
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<b>Sistem bilangan numerik</b> adalah sebuah <a href="http://id.wikipedia.org/wiki/Simbol" title="Simbol">simbol</a> atau kumpulan dari simbol yang merepresentasikan sebuah <a href="http://id.wikipedia.org/wiki/Bilangan" title="Bilangan">bilangan</a>.
Numerik berbeda dengan angka. Simbol "11", "sebelas" and "XI" adalah
numerik yang berbeda, tetapi merepresentasikan angka yang sama yaitu
sebelas.<br />
Artikel ini akan menjelaskan beberapa sistem numerik. Secara garis
besar terdapat dua sistem numerik, yaitu sistem numerik berdasarkan <a class="new" href="http://id.wikipedia.org/w/index.php?title=Penambahan&action=edit&redlink=1" title="Penambahan (halaman belum tersedia)">penambahan</a> (english: <i>addition</i>) dan sistem numerik berdasarkan posisi (eng. <i>position</i>).<br />
<br />
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