Basics on hardware & networkBasics on hardware & network

Mother board

Inside the ProcessorInside the ProcessorThe CPU has 2 fundamental sections: Control Unit, and Arithmetic Logic Unit.

Other components of the CPU include the Registers and the System Clock. A processor’s clock speed is measured in Megahertz (MHz) and Gigahertz (GHz).

Clock speed is the speed at which a processor executes instructions. A Pentium IV typically has a clock speed of 1.4 GHz.

Further research: Buses, System Bus, Expansion Bus

PortsPorts

Ports are sockets that allow you to plug in device connectors to access the common electrical bus on the motherboard.

Types of PortsTypes of Ports

Other types to look up and read about:

SCSI, USB, Fire Wire, and MIDI.

Serial ports transmit data one bit at a time, like the Serial ports transmit data one bit at a time, like the picture on the left illustrates.picture on the left illustrates.

Parallel ports transmit more than one byte at a Parallel ports transmit more than one byte at a time.time.

A network is a group of two or more computer systems linked together.

Network

NETWORK TOPOLOGYNETWORK TOPOLOGYStructure of a network is termed as topology

mesh

tree

TYPES OF NETWORKTYPES OF NETWORK

1. LAN(Local Area Network)

2. WAN(Wide Area Network)

3. MAN(Metropolitan Area Network)

local-area networks (LANs) : The computers that are geographically close together (i.e, in the same building (or) 1 k.m).

LAN

wide-area networks (WANs)wide-area networks (WANs) :: The computers are The computers are farther apart and are connected by telephone lines farther apart and are connected by telephone lines or radio waves.or radio waves.

WAN

•metropolitan-area networks MANs): A data network designed for a town or city.

MAN