What is micro-computer ? Explain



       This is a single user system. It is called micro-computer since that the main processor is a micro processor witch comprised of control unit and ALU. The memory unit stays outside the micro-processor.

The basic hardware of a modern microcomputer system includes a CPU, internal memory storage, disk drives and other devices for physically transferring data and programs into and out of the internal memory and telephone or network interconnections for linking the computer with other computers.


     Simple Pc : A personal computer without a hard disk is called simple PC. PC-AT: Stands for advanced techonology. They are more powerful than Xt machines. Here also we must have one hard disk. The micro-processor of this category may be as follows :

1)   80286
2)  80386-80386  SX, 80386  DX
3)  80386  DX, 80486 DX2
4)  Pentium I, II, III, IV
5)  AMD DURON, ATHLON etc...