First we must go to bios and should check boot sequence,local hdd status Or we should check RAM.& check h.d.d cable. cheack cd writer for cd or dvd
CPU is the unit in the computer system where the actual processing of the data takes place and also it controls the flow of the data.
keyboard connect ps/2 port,
paraller port printer connect
new port usb
DHCP: Dynamic Host Control Protocol.
It is used to bound MAC Addresses of system. Specially for Wireless System.
BIOS - Basic Input Output System,
Power On Self Test (POST) and Loading Bootloader from the Hard disk drive Boot Sector is being done by BIOS.
It initiates the system for operation