Computer Architecture

Component Description:-

Central Processing Unit (CPU) or microprocessor, controls the operation of the computer and performs its data processing functions.

Main memory also called internal memory stores instructions and data. Memory is partitioned into separate instruction and data spaces.

Input/output (I/O) moves data between the computer and its external environment.

System interconnection some mechanism that provides for communications among the CPU, the main memory, and the I/O devices.

Computer Functions:-

INPUT:

•Words, symbols, numbers, sound, pictures, program instructions

PROCESS:

•Program calculates, sorts modifies data

•Uses microprocessor or CPU

OUTPUT:

•Results of processing

•Reports, graphs, documents, pictures

•Printer or monitor

STORE:

•Memory is temporary holding area (RAM)

•Storage is permanent (disk)