Text to binary encoding converts each character into its 8-bit binary representation using ASCII or Unicode character codes. For example, the letter 'H' has ASCII code 72, which equals 01001000 in binary (8 bits). The word 'Hello' becomes '01001000 01100101 01101100 01101100 01101111' when each letter is converted to its binary equivalent and separated by spaces for readability. This transformation reveals how computers store text—every character is ultimately a number in binary format.
Binary encoding uses base-2 notation where each digit (bit) can only be 0 or 1. Eight bits make one byte, which can represent values from 0 (00000000) to 255 (11111111). ASCII uses values 0-127 for standard characters (letters, numbers, punctuation), while extended ASCII and Unicode use higher values for accented letters, symbols, and international scripts. The encoder takes each character, determines its numeric code, converts that number to binary, and pads it to 8 bits (adding leading zeros if necessary) to ensure consistent byte-sized output.
This encoding is fundamental to computer science education, demonstrating how high-level text is represented at the machine level. When you type a letter on a keyboard, it is immediately converted to binary by the operating system. Hard drives, RAM, and network transmissions all use binary representations of text. Understanding text-to-binary conversion clarifies foundational concepts in digital storage, character encoding, and how different data types (text, images, audio) are ultimately just sequences of bits interpreted according to specific encoding rules.