Data Representation


Introduction:



The NFS uses XDR like a language of description of data, for the exchange of data.


Bynary system:external image binary.jpg


A Binary Number is made up of only 0s and 1s.Binary system is the language of computer .every move you make on the computer is represented by 1 and 0. Every program, letter, number everything is represented by 1 or 0. Binary means composed of two pieces or two parts.
Example (this is not true): "A" in the computer myte be represented by 110 011 000.

Units of storage:


Bites, bytes, kilobytes, megabytes, gigabytes and terabytes are units of storage. They describe disk space and capacity of system memory.
Thery are used to define different spaces or capacities for the storage process. They have a order from large to small . it is :
  • bits
  • bytes
  • kilobytes
  • megabytes
  • gigabytes
  • terbytes