Abstract:
Personal Computers are widely used
these days in office automation in
Business/trade, Industries, Banks,
Insurance Establishments, Hospitals,
Hotels, Railway, Air-lines and Transport
services etc.
Personal Computer hardware consists
of CPU, Memory, Direct memory access,
Peripheral controllers and interfaces,
Floppy disk drives and hard disk drives.
The peripherals consists of Keyboard,
CRT Monitor, Printer, Modem and Mouse
etc. and connected to the main PC
through cables and interfaces. Switched
Mode Power Supply (SMPS) are used to
power the personal computer for
different dc voltage: +5V, -5V, +12V and
-12V. The SMPS is housed in the PC
cabinet .
