Tugas 2. Rangkuman Materi Sistem Bilangan
Muhamad Kahfi
1803015164
Sistem - Sistem Bilangan, Operasi dan Kode
Sistem Biner dan Kode – kode digital merupakan dasar untuk komputer dan elektronika digital secara umum. Sistem bilangan biner seperti desimal, hexadesimal dan oktal juga dibahas pada bagian ini. Operasi aritmatika dengan bilangan biner akan dibahas untuk memberikan dasar pengertian bagaimana komputer dan jenis – jenis perangkat digital lain bekerja.
Sistem Bilangan Terdiri dari 4 yaitu :
- Desimal 0 - 9
- Biner 0 - 1
- Oktal 0 - 7
- Hexadesimal 0 - F
Bilanga Desimal
Dalam setiap bilangan desimal terdiri dari 10 digit, 0 sampai dengan 9.
Contoh: Ungkapkan bilangan desimal 2745.214 sebagai penjumlahan nilai setiap digit.
Bilangan Biner
- Sistem Bilangan biner merupakan cara lain untuk melambangkan kuantitas, dimana 1 (HIGH) dan 0 (LOW).
- Sistem bilangan biner mempunyai nilai basis 2 dengan nilai setiap posisi dibagi dengan faktor 2:
Hasil:
Nilai : 26 25 24 23 22 21 20
Biner : 1 1 0 1 1 0 1
1101101 = 26 + 25 + 23 + 22 + 20
= 64 + 32 + 8 + 4 + 1 = 109
Aplikasi Digital
Ilustrasi sebuah penggunaan hitungan biner sederhana.
Konversi Desimal ke Biner
- Metode Sum-of-Weight.
- Pengulangan pembagian dengan Metode bilangan 2.
- Konversi fraksi desimal ke biner.
Metode Sum-of-Weight
Bilangan desimal 9 sebagai The decimal number 9, for example, can be expressed as the sum of binary weight of:
Example:
Convert the following decimal numbers to binary:
a) 12 b) 25 c) 58 d) 82
1100 11001 111010 1010010
Repeated Division by 2 Method
A systematic method of converting whole numbers from decimal to binary is the repeated division-by-2 process.
Converting Decimal Fractions to Binary
Binary Arithmetic
- Binary arithmetic is essential in all digital computers and in many other types of digital systems.
- Addition, Subtraction, Multiplication, and Division
Binary Addition
The four basic rules for adding binary digits (bits) are as follows:
0 + 0 = 0 sum of 0 with a carry of 0
0 + 1 = 1 sum of 1 with a carry 0f 0
1 + 0 = 1 sum of 1 with a carry of 0
1+ 1 = 10 sum of 0 with a carry 0f 1
Binary Subtraction
The four basic rules for subtracting bits are as follows:
0 – 0 = 0
1 – 1 = 0
1 – 0 = 1
10 – 1 = 1 0 – 1 with a borrow of 1
Binary Multiplication
The four basic rules for multiplying bits are as follows:
0 X 0 = 0
0 X 1 = 0
1 X 0 = 0
1 X 1 = 1
Binary Division
Division in binary follows the same procedure as division in decimal.
1’s and 2’s Complements of Binary Numbers
- The 1’s and 2’s Complements of Binary Numbers are very important because they permit the representation of negative numbers.
- The method of 2’s compliment arithmetic is commonly used in computers to handle negative numbers
Sumber : Online Learning Uhamka











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