INFORMATION SHEET 1.3
Configuration and Computer Systems and Network’s Hardware
Hardware
-the physical computer and its
components
Storage Devices
-stores data and
program
instructions
Central
Processing Unit
(CPU) – carries out
program
instructions
Input Devices –
allow the user to
communicate with
Diskette
USB
CD
Arithmetic Unit
Registers Control
Section
Internal Bus
Keyboard
Mouse
Joystick
the computer
Output Devices –
enable the
computer to
present
information to the
user
Printers
Monitors
Speakers
Scanners
Software- the
programs that run the
computer
System or OS- tells the
CPU what to do
Application – performs
specific personal,
business or scientific
processing tasks
Programming – makes
computer programs which
uses different
programming languages
MS DOS Windows
MAC OS
Corel Linux
Word Processor, Spreadsheet,
Presentation, Database Programs,
Desktop Publishing, Reference,
Graphics, Educational, Computer
Games, Network, Language
Cobol, Pascal, Java, Visual
Basics, Fox Pro
Date
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Module 4 :Installing of Computer Systems and Networks
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A network is a collection of computers and related equipment (printers,
webcams, game consoles, etc.) connected so that data can move between them.
Even if you have a single computer, it looks to the Internet as part of a network.
The Internet, then, is a network of networks.
The majority of networking, is done using the internet standard. At the
center of the basic diagram of a wired network is either a hub or a switcher and
computers are connected to the hub, much like spokes of a wheel or star. Each
connection at the hub is called a port.
Three Basic Network Categories

Local Area Network- the smallest of the three network types, consist of PCs
connected together within a limited area, such as within the same building,
floor or department.

Metropolitan Area Network – are network that spans no more than 50
miles. It is design to connect LANs spanning a town or city

Wide Area Network – used to distribute information thousand of miles
among thousands of users.
Network Hardware

Network Interface Card (NIC) – a printed
circuit board, an adapter that plugs into the
computer’s motherboard when connected
with a network cable, provides the physical
link between your computer and the network.

Network Hub – a hardware device that
all PCs on a network are connected to
by cabling. The hub manages receiving
and transmitting data from networked
services.

Wireless Hubs– are hubs designed for the home
Kinds of Hubs
- Standalone Hubs – are single products with a number of ports. It is
usually include some method of linking them to other standalone hubs for
network expansion.
Date
L.O. Conduct Validation and Testing
Version No.
Module 4 :Installing of Computer Systems and Networks
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Pin 1
White/Oran
ge
Pin 2
Orange
Pin 3
White/Gree
n
Pin 4 Blue
Pin 5
White/Blue
Pin 6
Green
Pin 7
White/Bro
wn
Pin 8
Brown
- Stackable Hubs – work just like standalone hubs, except that several of
them can be “stacked” (connected) together, usually by short lengths of cable.
- Modular Hubs – are popular in networks because they are easily
expanded and always have management option. It is purchased as chassis, or
card cage, with multiple card slots, each of which accepts a communication
card, or module
3 Basic Hub Types
- Passive Hubs – simply connects various cables
- Active Hubs – amplify or boost signals
- Intelligent Hubs – select which path a specific signal will travel

Repeater – a device that strengthen signals
and allow then to stay clear over longer
distances.

Network Bridge – divides network into
smaller, more manageable sections helping
reduce network traffic.

Network Switch – It helps determine how
data moves over large networks.

Router – a device that forwards data packets
between Local or Wide Area Network groups.
Date
L.O. Conduct Validation and Testing
Version No.
Module 4 :Installing of Computer Systems and Networks
Page
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