Computer Coding Schemes

Computer Coding Schemes

• BCD-Binary Coded Decimal

Short for Binary Coded Decimal, BCD also called as packet decimal and is numbers 0 through 9 which are converted to four-digit binary. Following  is a list of the decimal numbers 0 through 9 and the binary equivalents.

• Decimal	BCD
  0	0000
  1	0001
  2	0010
  3	0011
  4	0100
  5	0101
  6	0110
  7	0111
  8	1000
  9	1001

  Having Used this conversion, the number 25, for example, would have a BCD equivalent number of 0010 0101 or 00100101. However, in binary, 25 is represented as 11001.
   
• EBCDIC-
• ASCII-American Standards Code for Information Interchange
• Unicode