WHAT IS BINARY CODES


All data in a computer system consists of binary information. Binary means there are only two possible values: zero and one. Computer program translates between binary information and the information you actually work with on a computer, such as decimal numbers, text, photos, audio and video.

Each component used in the binary representation of data is called a binary component. The codes formed by these components are called the binary codes.
1 • Represents the ON state of a component.
0 • Represents the OFF state of a component.
Bits  abbreviation for binary digit, the smallest unit of information in a computer. A bit is represented by the numbers 1 and 0, which correspond to the states on and off, true and false, or yes and no.
Three Types Of Coding Scheme
Binary Coded Decimal (BCD) • a coding scheme that uses four bits at each storage positions for representing data.
Extended Binary Coded Decimal Interchange Code (EBCDIC) • a coding scheme developed by IBM for use with its computers numeric, punctuation, and transmissioncontrol characters. Uses 8 bits for coding, allowing 256 possible characters.
American Standard Code for Information Interchange (ASCII) • a coding scheme that assigns numeric values to letters, numbers, punctuation marks, and certain other characters. Uses 256 codes divided into two sets  standard and extended  of 128 each. These sets represent the total possible combinations of either 7 or 8 bits.
Parity Bits  an additional bit in each storage position used to detect errors in a circuitry.
Different Numeral System
Binary • Base 2  Absolute Value 0, 1
Octal • Base 8  Absolute Value 0, 1, 2, 3, 4, 5, 6, 7
Hexadecimal • Base 16  Absolute Value 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F