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Information about Computer Hardware – Tech Related

Table of Contents

COMPUTER HARDWARE

Motherboard

 

Hardware are the physical parts of computer which can be seen found and felt. E.g. Motherboard, Keyboard, Mouse, Printer, Scanner etc. Hardware is classified into 4 parts which are:-

Input Unit:

Those parts of Computer which are a user to given raw data to the computer. E.g. Keyboard, Mouse, Scanner etc.

CPU (Central Processing Unit):

CPU performs all the operations, process the raw data given by user and produce information.

Memory Unit:

Memory Unit stores the information and data temporarily or permanently as per the need of user.

Output Unit:

Those parts of computer which display the information produced by CPU. E.g. Monitor, printer, speaker etc.

Expansion Slots (PCI, PCIe, AGP):

Expansion slots are an opening located inside a motherboard where additional boards can be connected.

PCI – Video Card, Network Card, Sound Card, Modem

PCIe – Video Card

AGP – Graphic Card

North Bridge (GMCH):

North bridge is an integrated circuit which communication between CPUT, AGP and memory. North bridge is directly connected to these parts.

South Bridge (ICH):

South bridge is an integrated circuit that controls hard drive, I/O device, IDE, BIOS, USB etc.

Serial Port:

I/O devices are connected in serial port.

  • Mouse
  • Printer
  • Modem

Parallel Port:

Mostly used for printer and scanner.

Super I/O:

An integrated circuit on motherboard which handles slower I/O devices.

  • Floppy drive
  • Non USB keyboard, Mouse
  • Parallel port
  • Serial port
  • Temperature sensor

Types of Motherboard

  • XT – Extended Technology
  • AT – Advance Technology
  • Baby AT
  • ATx – Advance Technology Extended

Types of Memory

  • Primary memory
  • Secondary memory

Primary Memory:

It is the memory of the computer in which CPU access directly. In primary memory files and folders are store temporary. For e.g. RAM.

Secondary Memory:

Memory in which CPU doesn’t access directly it called secondary memory those memory has higher storage capacity but slow performance. For e.g. Hard Disk Drive, Pendrive, CD-ROM, DVD-ROM.

Types of/ Function of Processor (CPU):

  • ALU – Arithmetic logical unit.
  • CU – Control unit
  • RU – Resistor unit

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