Fundamentals of Numbering System
Humans use the base 10 (decimal) number system. Base 10 contains digits 0 through 9.
Computers use the base 2 (binary) number system. Base 2 contains digits 0 and 1. These two binary digits are commonly referred to as bits. Binary system is used in computers because 1 and 0 represent the two voltage levels of on and off.
The convenient representation of binary numbers is base 16 (hexadecimal) number system. Base 16 contains digits 0 through F.
Computers use the base 2 (binary) number system. Base 2 contains digits 0 and 1. These two binary digits are commonly referred to as bits. Binary system is used in computers because 1 and 0 represent the two voltage levels of on and off.
The convenient representation of binary numbers is base 16 (hexadecimal) number system. Base 16 contains digits 0 through F.
| Decimal | Binary | Hexadecimal |
|---|---|---|
| 0 | 0000 | 0 |
| 1 | 0001 | 1 |
| 2 | 0010 | 2 |
| 3 | 0011 | 3 |
| 4 | 0100 | 4 |
| 5 | 0101 | 5 |
| 6 | 0110 | 6 |
| 7 | 0111 | 7 |
| 8 | 1000 | 8 |
| 9 | 1001 | 9 |
| 10 | 1010 | A |
| 11 | 1011 | B |
| 12 | 1100 | C |
| 13 | 1101 | D |
| 14 | 1110 | E |
| 15 | 1111 | F |
Related topics:
Microcomputer System | Microcomputer System Architecture | Memory Basics | Digital Logic | ASCII Code | Computer Internals | ROM and RAM Memory
List of topics: Microcomputer
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