What's inside a computer?
by Grace Poulter
RAM and ROM
The computer memory is split up into two parts 'Read Only Memory' (ROM) and 'Randomly Access Memory' (RAM).
ROM is memory that cannot be changed by a program. ROM retains its memory even after the computer is turned off.
RAM is a fast temporary type of memory in which programs, applications and data are stored.
this is a data storage for text video and audio. its a cd player.
Hard disks spin at very high speeds within a sealed unit inside the computer. Hard disks store large amounts of data - 200GB to 1TB is common in desktop computers. The data stored on a hard disk is retained until deleted, but it needs to be loaded into main store RAM before it can be used.