How Text-to-Binary Conversion Works
Computers process all data as binary (0s and 1s). Text characters are first converted to numeric codes using the ASCII standard, then stored as 8-bit binary numbers. For example, the letter 'A' has ASCII code 65, which in binary is 01000001. Every character in a plain text file is stored as one byte (8 bits).
ASCII Binary Examples
| Character | ASCII (decimal) | Binary (8-bit) |
|---|---|---|
| A | 65 | 01000001 |
| a | 97 | 01100001 |
| 0 | 48 | 00110000 |
| Space | 32 | 00100000 |
How to Convert a Number to Binary
Repeatedly divide the number by 2 and record the remainders, then read them in reverse order. For example, 65 in binary: 65÷2=32r1, 32÷2=16r0, 16÷2=8r0, 8÷2=4r0, 4÷2=2r0, 2÷2=1r0, 1÷2=0r1. Reversed: 1000001 → padded to 8 bits: 01000001.
Applications of Binary
Binary is used throughout computer science and networking — from IP address and subnet mask calculations to bitwise operations, data compression, and cryptography. Understanding binary is a fundamental skill for network engineers, software developers, and IT professionals.
Frequently Asked Questions
ASCII assigns a number (0–127) to each character. Computers store these numbers as 8-bit binary. For example, 'A' = 65 = 01000001.
8 bits can represent 256 values, from 0 (00000000) to 255 (11111111). Standard ASCII uses values 0–127.
One byte (8 bits) is the smallest unit of computer memory. Each ASCII character maps to exactly one byte, so 8-bit groups are the standard way to represent text in binary.