Various Binary Coded Systems - JSS2 Computer Studies Lesson Note
In addition to the hexadecimal system, several binary-coded systems are used in computing for specific purposes:
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Binary Coded Decimal (BCD): BCD is a binary representation of decimal numbers. In BCD, each decimal digit is represented by its binary equivalent, allowing for straightforward conversion between binary and decimal.
Gray Code: Gray Code is a binary numeral system in which two successive values differ in only one bit. It is often used in applications where minimizing errors during binary counting is crucial, such as in rotary encoders.
Excess-3 Code: Excess-3 Code, also known as XS-3, represents decimal digits by adding 3 to their binary equivalents. It is commonly used in digital circuits and calculators.
ASCII (American Standard Code for Information Interchange): ASCII is a character encoding standard that assigns a unique binary code to each character, including letters, numbers, and symbols. It enables computers to represent and communicate textual information.