What is a Computer?
A Computer is an electronic device capable of
accepting data as input processes
the data with stored instruction and produces results as output. It has the added capability of storing the
processed information, which could be retrieved when required for future
reference. Computer as an electronic
beast is a terrible ignorant machine which knows little about outside world. Computer works according to instruction given
to it to perform a given task.
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Data Processing Information
(Raw material) (Desired
results)
Data
Data can be in the form of raw facts and figures and
applying the prescribed instructions in the computer to produce the desire
result.
Information
Information is processed data, which is useful to the
one who has the background knowledge.
That is to use the information to achieve a goal or to take a
decision. Information can therefore be
described as what comes out of the computer after the processing.
NB: Data and information are not the same and
must not be used interchangeably.
You use computers in education and
research. You also use them for broadcasting news, receiving and sending
messages to family and friends, making presentations, maintaining official and
personal records, making weather forecasts, and for various other business and
recreation activities. By using computers, you save a lot of time, effort, and
money.
CLASSIFICATION OF COMPUTERS
Computers can be
classified into three main types:
·
Mainframe
·
Mini
Computer
·
Micro
Computer or Personal Computers (PC)
Classification of Computers
Main
Frame/Super Frame Mini Computer
Micro Computer (PC)
Mainframe computers were the first computers to be
manufactured. They were very big electronic machine mainly used by government
and big companies and they were centralized. This led to the manufacture of Mini Computers
which gave opportunity to some organization such as manufacturing companies to
get access to computers but these were also centralized. All these computers were run by expertise.
With time people realized that computers are very
useful devices which can be used by every organization and individuals, this
led to the manufacturing of Microcomputer. Microcomputers also known as Personal Computers
(PC) are the small computers we see in our offices, schools and homes today.
They are used in teaching school curricular and in
homes they are used to store recipes, prepare budget and entertain the family.
Types
of Micro / Personal Computers
Different
types of computers are available on the market today. The most common computer
is the Personal Computer (PC), typically used by individuals and small
businesses. A personal computer is a
computer that is designed for use by one person at a time. A personal computer is used in the workplace
to create documents, manage business records, and communicate with others. It is used in schools to teach lessons,
research over the Internet, and work on assignments. You can also use a
personal computer to play games, view videos, and listen to music. Depending on the size and the purpose of a
personal computer, it can be categorized into four different types: desktop,
laptop, handheld, and tablet.
You
select a computer depending on the tasks that you want it to perform. For
example, if you want to use the computer to edit photos or play complex games,
you need a computer with a fast CPU and a good display adapter.
Type
of Computer
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Features
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Desktop
Computers
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Desktop
computers are made up of individual components, such as a monitor, a
keyboard, a system unit, and a printer. Desktop computers are not portable
and are generally placed on the surface of a desk or a table. The components
of desktop computers can easily be replaced or upgraded.
Desktop
computers usually have more memory, a larger hard drive, more ports, and a
bigger display than laptops and other portable computers. Desktop computers
can run continuously for long periods of time.
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Type
of Computer
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Features
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Laptop
Computers
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Laptop computers are lightweight personal computers. Laptop computers
are smaller in size as compared to a desktop computer and are designed for
travel. Laptop computers are also called notebook computers.
The main feature of laptop computers is that they are small and
portable. As the name suggests, these can easily be placed on the lap of a
user. Desktop computers run on electricity only, while laptop computers run
on electricity or on batteries that can be recharged. However, laptop
computers consume more power than desktop computers with a similar hardware
setup. Laptop computers perform the same tasks as desktop computers, but
laptop computers generally cost more than desktop computers.
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Palmtop
Computers
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Handheld computers are devices used for specific everyday tasks, such
as managing personal data. These are smaller than laptops and provide fewer
features compared to desktop computers or laptops. These can also perform
basic word-processing activities and help you access the Internet. Several
handheld computer models can also work as cellular phones or digital cameras.
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Tablet
Computers
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Tablet computers are fully functional computers that allow you to
write directly on the screen by using a tablet pen. You can also use the
tablet pen to perform mouse functions. Tablet computers, therefore, do not
need a keyboard and a mouse.
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COMPUTER
COMPONENTS
There are 2 main components of computer. These are:
1. Hardware
2. Software
Hardware
Hardware is the physical
component of a computer. The basic hardware
components of a computer are the Monitor, System Unit, Mouse and the
Keyboard. The Speakers and Printer are
added peripherals.
Software is a series of coded instruction given to the computer to perform its
activities. Software is placed on
hardware. Software is made up of two:
1. System Software
2. Application Software.
System Software: System software is the software that contributes to the control and performance of the computer system. The System software is also referred to as an Operating System. Examples of system software are Disk Operating System (DOS), Windows 95, Windows 98, Windows 2000, Windows XP, Windows NT, and Novell Net Ware, Unix, Linux etc.
Operating System: The
Operating System is the basic type of software that acts as a platform and
supervisor for other applications. The operating system provides an interface
between the user or application programmes and Hardware itself to control and
manage the operation of the computer. The process of loading the operating
system to prepare the computer for use is known as Booting the computer.
Application Software: Application
software is the programme installed on the PC to help the user carry on his or
her activities. Some programs allow you
to perform tasks such as writing letters, doing calculations, or sending e-mail
messages etc. Examples of Application
software can be categorized into the following.
Word Processing, Spreadsheet, Database, Desktop Publishing etc.
WORD PROCESSING
This type of software is mainly used for text
processing such as typing of letters, memos, reports etc. Some current versions such as MS Word 2003 / XP
have the capacity to handle some sophisticated macro development and graphics.
Some of the Word processing programmes are Microsoft Word, Word Perfect etc.
SPREADSHEET
Spreadsheet is mainly used for numerical manipulation
and computation. They are useful in such areas as preparation of budgets,
forecast, invoices etc. examples are Microsoft Excel, Lotus 123, Symphony etc.
DATABASE
They are mainly used for voluminous records keeping.
Database are use by organisation that use large volume of records, such as
preparation of employee record, inventories, telephone Directory, stores etc.
Examples are DBASE IV, FoxPro, Visual Basic, MS Access etc.
DESKTOP PUBLISHING
They are useful for designing, Drawing, Text and
Graphics, such as Calendar, Business Card, Certificate, letterheads etc.
Examples are CorelDraw, Page Maker,
MS-Publisher etc.
Microsoft Office Programmes such as MS-Word, MS- Power Point, MS-Excel, MS-Publisher and MS-Access
are the most commonly used application software.
COMPUTER DEVICES
Computer has 3
main devices
·
Input
Unit
·
System
Unit
·
Output
Unit
Part
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Description
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Input
Devices
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You use
input devices to provide information to a computer, such as typing a letter
or giving instructions to a computer to perform a task. Some examples of
input devices are described in the following list.
·
Mouse: A device that you use to interact with items
displayed on the computer screen. A standard mouse has a left and a right
button. You use the left button to select items and provide instructions by
clicking an active area on the screen. You use the right button to display
commonly used menu items on the screen.
·
Keyboard: A set of keys that resembles a
typewriter keyboard. You use the keyboard to type text, such as letters or
numbers into the computer.
·
Microphone: A device that you can use to talk to
people in different parts of the world. You can record sound into the
computer by using a microphone. You can also use a microphone to record your
speech and let the computer convert it into text.
·
Scanner: A device that is similar to a photocopy
machine. You can use this device to transfer an exact copy of a photograph or
document into a computer. A scanner reads the page and translates it into a
digital format, which a computer can read. For example, you can scan
photographs of your family using a scanner.
·
Webcam: A device that is similar to a video
camera. It allows you to capture and send the live pictures to the other
user. For example, a webcam allows your friends and family to see you when
communicating with them.
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SYSTEM UNIT
The System Unit is a metal
or plastic box, which contains the CPU (processor), memory, disk drive(s), motherboard,
power supply etc.
Central Processing Unit (CPU):
This is where data received is processed using stored instructions. It is also referred to as the main brain of
the computer. Arithmetic and logical and
computation takes place here. The control unit acts as an instructor to other
functions.
Memory: It is the temporary storage unit of information of the computer. It is divided into 2 parts. These are the RAM and the ROM.
RAM
(Random Access Memory): This is where the information is stored temporally. It is a temporary memory location of work
area. Data stored in the RAM can be lost
in case of power cut. You write to and read from RAM.
ROM (Read
Only Memory): This is where data is
stored permanently - information stored here cannot be changed. You only read
from but cannot write to ROM.
Storage Device: This is the external unit of information. It provides mass storage unit for data and
information within the computer system. It
is the permanent storage of information.
Storage
Devices
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You use storage devices to store computer information. Storage
devices come in many forms. Some examples are hard drive or disk, CD-ROM,
floppy disk, and DVD-ROM. Storage
devices can be divided into two types, internal storage devices and external
storage devices.
Some common
storage devices are described in the following list.
· Hard Disk: A magnetic disk that is usually the main storage
device on most computers. It can be an external or an internal device.
· Floppy Disk: A portable storage device that allows you to store
a small amount of data. A disadvantage of this disk is that it can be easily
damaged by heat, dust, or magnetic fields.
· CD-ROM: A portable storage medium that allows you to store
400 times more data than on a floppy disk. It is less prone to damage than a
floppy disk.
· DVD-ROM: A portable storage medium that is similar to a
CD-ROM; however, it can store larger amounts of data than a floppy disk or a
CD-ROM. A DVD-ROM is commonly used to store movies and videos.
· Zip Drives: These are also magnetic medium used for storing
large volume of data.
· Flash Disk / Pen Drive: This is a magnetic disk which looks
like a pen used for storing data.
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OUTPUT DEVICES: These
are devices where the information is passed from the PC to the user. e.g. Visual Display Unit (monitor), printers, modems, speakers etc.
Output
Devices
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You use output devices to get feedback from a computer after it
performs a task. Some examples of output devices are described in the
following list.
·
Monitor: A device that is similar to a television.
It is used to display information, such as text and graphics, on the
computer.
·
Printer: A device that you use to transfer text
and images from a computer to a paper or to another medium, such as a
transparency film. You can use a printer to create a paper copy of whatever
you see on your monitor.
·
Speaker/Headphone: Devices that allow you to hear sounds.
Speakers may either be external or built into the computer.
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DRIVES
This is where an auxiliary storage medium is inserted
to be stored or read from. The hard
drive usually denotes letter C and the floppy drive denotes letter A and
B. If the PC has physical floppy drives
one of them will assume letter A and the other B. The CD drive denotes letter D or E.
Naming a File
Information stored on the PC are put in files and
these files are given a unique name to distinguish one file from the other and
it is called a file-name. In MS DOS and
the old versions of windows, a file name should not exceed 11 characters. 8 characters for file-name and 3 characters
for extension e.g. BISMARCK.DOC, BISMARCK is the file name and DOC is file
extension. A file name can be alphabets
(A-Z) or numbers (0-9) or the combination of alphabets and numbers called
Alphanumeric. A file-name should not
Include wild characters or wild cards like (*, \, /,>, <,?)
UNIT OF MEASUREMENT
The
information stored in the computer is internally represented in the form of 0s
and 1s. Each 0 or 1 is called a bit.
A combination of eight bits is called a byte.
The following table explains the various
terms used to measure storage or memory capacity.
Bit: A bit is the smallest unit of
information that a computer handles. A single bit can hold only one of two
values, 0 or 1. One of the two values is
always present. A single bit conveys little
meaningful information. However, you can obtain more meaningful information by
combining consecutive bits into larger units.
8 bits - 1 byte
1024 bytes - 1 Kilobytes (KB)
1024 Kilobytes - 1
Megabyte (MB)
1024 Megabytes - 1
Gigabyte (GB)
1024 Gigabytes - 1
Terabytes (TB)
Computer Performance
Whether
you use your computer for business or for personal use, it is important that
your computer performs efficiently. However, performance does not depend on a
single factor. The following table lists some of the important factors that
affect the overall performance of the computer.
Factor
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Description
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CPU Speed
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The CPU is the brain of the computer and its speed is an important
factor that affects the overall performance of the computer. The CPU speed is
the rate at which the CPU can perform a task, such as moving data to and from
RAM, or performing a numerical calculation. If you have two computers that
are identical except for the CPU speed, the computer with the faster CPU
completes a task more quickly.
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Hard Disk
Factors
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Hard disks differ in storage capacities as well as their speed of
data storage and retrieval. If the speed of data retrieval is fast, the
computer takes less time to start and to load programs. Additionally, the
speed and size of the hard disk play an important role when a program needs
to process large volumes of data.
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RAM
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RAM is the active memory of the computer. The speed of retrieving
data stored on RAM is very fast and for this reason the computer uses it to
store the information that is currently in use. If
the amount of RAM is large enough to hold all of the information in use, this
can result in faster computer performance. The RAM speed and the amount of RAM are
important factors in personal computer performance. When there is not enough
RAM in a computer, the computer slows down or fails to function properly.
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NET WORKING
It is the connection of 2 or more computers so that
users can share files, data, printers and other peripherals.
Consider
a scenario where an organization has 10 employees. These employees use
computers to perform daily tasks. They also need print data frequently. Instead
of giving each employee a printer, which would be expensive, all computers can
be connected to a single printer.
You
can connect your computer to other computers to share information and hardware
components. A group of computers and associated devices that are linked
together to facilitate sharing information is called a network. Networks
can also be used to share data and devices such as printers.
A
network offers many advantages for the computer connected to it. In addition to
sharing hardware and software, you can share files and communicate with other
computer users on the network. A typical network has the following three
components:
Server: The main computer on a network that
provides services to other computers on the network. A server decides which
computers are allowed to access the hardware and software on the network.
Workstation: A computer connected to a network. You use
a workstation to access the hardware and software on a network.
Communication
channel: A path or link
that connects computers or peripheral devices, such as printers and disk
drives, to transfer information. Cables are commonly used as communication
channels in a network, but networks can also transfer information through
wireless connections.
A
network expands as more workstations and servers are connected to it. Depending
upon the area covered, a network can be categorized as a local area network (LAN)
or a wide area network (WAN).
Types
of Network
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Feature
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LAN
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A LAN connects devices within a limited area, such as a home or a
small group of offices. It commonly includes computers and shared resources
such as printers and scanners.
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WAN
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A WAN is a network that connects devices in geographically separated
areas. You can use the resources of a WAN to connect two or more LANs by
using long wires, optical cables, and satellites. Many organizations use a
WAN to connect their networks across different countries. The Internet is an
example of a WAN.
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INTERNET
The Internet is a worldwide collection of public
networks that are linked to each other for information exchange. The Internet
started as a network to facilitate communication between government and
educational departments in the United States.
When other networks were connected to this network, it
became a vast medium for exchanging information and ideas. Today, the Internet connects many commercial,
government, and educational networks, as well as individual computers, which
share data. The Internet offers a range
of services to its users, such as file transfers between Internet users and
electronic mail for sending messages.
The World Wide Web (WWW), or the Web, is another
service that the Internet provides. The
Web includes specially formatted documents that are interlinked and stored on
servers around the world.
You can use the Internet and its services to send
messages to other Internet users, search and apply for jobs, watch movies, and
buy and sell products. Many
organizations use a special type of network to communicate and share
information within the organization. Such a network is called an intranet.
An intranet is similar to the Web but is accessible
only to authorized users of the organization. An intranet is much smaller than the Internet
and can provide services such as document distribution, software distribution,
access to databases, and training.
Computer virus
Computer program designed to destroy or halt operation
on computer systems by copying itself into files and executing when those files
are used. Virus is transmitted through the floppy disk. They cause a lot of
harm to both software and hardware.
Protect your
computer against virus
- Write protects all diskettes containing system files or program codes.
- Do not copy program files from PC to PC.
- Discourage outsiders using their diskettes on your PC
Anti virus programs are used to clear
virus, repair damage files and to monitor the computer for occurrences of any
new virus. Some of anti virus programs are Norton utilities and Anti virus, Sophos
Anti virus, McAfee Antivirus.
Handling diskettes
To reduce the chance of damaging diskettes do not:
- Expose the diskette to direct sunlight.
- Touch the disk surface with any object not even with your finger or handkerchief.
- Bend your diskette
- Bring it nears a magnetic field.
Caring for diskettes
Write protecting diskette: when you write protect
a disk it means that information can be read from it but cannot be written onto
it. This helps to prevent formatting a diskette by mistake or accidentally
writing information on it.
3.5inch diskette: This contains a write protect window in the
lower corner. When the window is open
writing on it is impossible and you cannot change any information on it. If you
close the window by the sliding the plastic tab shut, you can write information
on the diskette.
Write protect window
Hardware Protection
The computer’s hardware must be protected from dust, heat, moisture and anything that can cause damage to the computer. Certain items must be use to protect the hardware, they are Dust covers, Screen filters, Fans, Air -conditioners and good electrical cables.
Windows
Basics
Windows is an operating system developed by Microsoft
Cooperation of USA. It is one of the
new and widely used operating systems in the world. Windows operating system is very exciting to
use because it offers some useful features.
·
It is multitasking - allowing many programs to be used
simultaneously.
·
It allows the use of long file names with spaces embedded
within.
·
It has improved games and multimedia support.
·
Using Microsoft exchange you can view and work with all types
of electronic communication including E-mail and faxes.
·
It offers an easy to use and affordable online service to
communicate with people worldwide, by using e-mail, bulletin boards and the
Internet.
When you boot your computer using the Windows
operating system, the work area displayed is called the Desktop. The
desktop consists of the Start button, Shortcut icons and the Taskbar.
The Start Button: is one of the most important controls in Window’s
.You use the start button to access essential Window’s functions, programs, and
documents. To use a program you must
first start it. With Windows you start a
program by clicking the start button. The
start button displays a menu from which you can make a selection. A typical windows menu option is listed in a
table, commands and their meaning.
The Task Bar is a rectangular area usually located across the
bottom of the screen. The taskbar shows
the names of all opened windows one is working with in addition to the start
button.
Basic
Mouse techniques
Mouse Pointer: It is
a small object that moves on the screen when you move the mouse. The pointer is
usually shaped like an arrow. As you move
the mouse on a flat surface the pointer moves in that direction corresponding
to the movement of the mouse.
Point: Placing the
mouse pointer on an item.
Left click: Pointing to
an item and pressing the left mouse button it.
Right click: Pointing to an
item and pressing the right mouse button.
Drag: Pointing
to an item and moving to a new location by holding down the left
mouse button and releasing
it only at the new destination.
Double click: Clicking the
mouse button twice in rapid succession.
Note it should be fast.
Desktop: Your work-space in the Windows environment.
Icon: A small
graphical image of a
file or folder designed to represent an application.
To start an application or
file using the Icon, double click the left mouse button. They
can also be defined as a
small picture that represents objects such as “My computer”,
Network Neighborhood.
Command
|
What it does
|
Programs
My Recent Documents
Find/Search
Help/Support
Setting
Run
Shut Down/
Turn off
|
Displays a list of programs you can use. E.g.
Ms-word.
Displays a list of 15 the last documents that you’ve
opened.
Enables you to find a file, folder, a mail message
or a shared computer in a network.
Starts help. You can then use help contents, index
or other tabs find out how to do a task in windows.
Displays a list of system components which you can
change settings.
Starts a program or opens a folder when you type an
MS-DOS command.
Shuts down or restart your computer.
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Starting a Program
You use the
start button to start any program.
- Click the start button and point to programs/all programmes
- Point to the folder that contains the program and click on the program name. e.g. Microsoft Word.
A program can also be started by double-clicking its shortcut
icon on the desktop.
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![](file:///C:\Users\DAVID\AppData\Local\Temp\msohtmlclip1\01\clip_image043.gif)
Title bar: displays the title of program being used. However if a document is opened its name will displayed with the program name on this bar.
Menu bar: displays menu items that
are typically commands used for various purposes / functions within a
particular program.
Tool bar: contains buttons that serve
as shortcuts to the commands listed in the menu.
Close button (X button): it is used
to close / quit a window
Control menu box: it is used to
control the size of the window close.
Minimize button: it is used to
make window smaller or shrink so that only the button is visible on the
taskbar.
Maximize button: it is used to
make the window size bigger such that it fills the entire desktop.
Restore button: restore the size of a window that
has been minimized.
Scroll arrows: to move up and down or
left to right through a document.
Creating
a file/document
- Start the program you will use to create your document.
- Select new from the file menu, a blank page is opened for you to do your work.
Saving a file/document
·
Click file menu.
- Select Save (if it’s the first time you are saving)
- A dialog box appears, you select the drive to save the document on and type the filename.
- Then click the save button.
Or select save if you are
saving changes made to an existing document.
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Select close from the file menu or click the close
button on the document window.
Opening a document/file
There are several ways of opening
documents in windows.
·
Open the document in the program you used to create it.
·
Using the Documents command on the start menu
·
Using the Find command to locate the document.
Opening the document within a Program.
·
Start the program.
·
Click open on the file menu.
·
In the look-in dialog box select the drive/folder that
contains the file.
·
Click the folder/drive and scroll through the list to find
your document/filename.
·
Select your document and click the open button.
To open a document using the Document command.
·
Click the start button and point to documents.
·
Scroll through and click the document you want to open.
The document opens and it’s button
appears on the taskbar.
Creating a short cut to programs on the desktop
To make working with Windows easier and enjoyable you
can create shortcuts to your most frequently used programs on the desktop.
·
Right click the desktop
·
Select new from the pop up menu.
·
Select folder containing the program.
·
Select the program.
·
Click
on finish.
A new short cut
is placed on the desktop. You may change the name of the shortcut by left
clicking on the name, type new name and press enter.
Using the Find / search command in start menu.
Searching for a document, folder or a computer in a
network is easier using Search/Find.
·
Click the start button.
·
Point to Find.
·
Select your option from the pop up menu.
·
Type filename, folder name or the computer ‘s name in the
dialog box.
·
Click fine now.
When in doubt as to what to do concerning any task Windows
offers you help.
Press F1 for your help message.
? offers
you help on a particular item. Drag it,
place on the item and click.
Help command from the start menu.
1.
Click start button.
2.
Click Help and Support.
This will display the Help and Support window as shown
3.
Click on Index to view a list of topics as shown in
4.
Type in the key work you want help on in the Type in the
keyword to find box..
5.
Click Display.
EXPLORING YOUR COMPUTER
In Windows, you store your work in folders, just like
you would in your office or at home. You can look at your files and folders by
using Windows Explorer or My Computer.
Inside My Computer, you can see a list of all of the disk drives on your
computer. Just double-click any icon to see what's inside. When you open a disk
drive, you can see the files and folders that it contains. Folders can contain
files, programs, and other folders.
Folder
A Folder in Windows is a container for programs and
files in graphical user interfaces, symbolized on the screen by a yellow graphical
image (icon). A folder is a means of
organizing programs and documents on a disk and can hold both files and
additional folders. Folders can contain
many different types of files, such as documents, music, pictures, videos, and
programs. You can copy and move files from other locations, such as another
folder, computer, or the Internet, to folders you create. You can even create
folders within folders.
To access the Windows Explorer window, click the Start
button, Programs, Accessories then the choose Windows explorer. This will open the Explorer window. One can create folders and files which can be
modified using the Explorer or My Computer.
My computer Window: it can be
used to explore a drive or copy /move files.
Windows Explorer helps to see the hierarchy of files
folders and the contents of a computer in general. You also create a short cut
through the explorer by using the right mouse button.
To open the explorer
·
Click the start button.
- Point to All programs.
- Click Accessories.
- Click Windows Explorer. The Explorer window will be opened as shown in .
The work area of the window is divided into two
columns. The left side displays disk
drives and folders while the right displays the contents of the Folder or Disk
being explored.
Note: Another
way to open windows explorer is to right click My computer icon and selecting
explore
Managing files and folders using the Windows Explorer window
To make working with files and folders simpler you can
create new ones, copy, move or delete unwanted ones.
Creating a New
Folder
· Choose the disk or folder you want to work with from the Folders column. Note: Always ensure that the Folder or disk you intend working with has its name on the Title bar.
- On the File menu choose New
- Choose Folder from the pop up menu
- A new folder appears on the screen. Type the name for the new folder and press enter to accept the new name.
Coping files/folders
1.
Select the file or folder to be
copies
2.
On the Edit menu, click Copy as
displayed
2.
Open the intended destination (folder or disk)
3.
On the Edit menu,
click Paste.
Moving files / folders
1.
Select the file or folder to be
copies
2.
On the Edit menu, click Cut as
displayed
4.
Open the intended destination (folder or disk)
5.
On the Edit menu,
click Paste.
Renaming
a File or Folder
- Select the File of Folder to be renamed
- click Rename from the File menu
- Type the new name for the selected File / Folder
- Enter to accept the new name
To delete a file or folder
1.
Click the file or folder you want to delete.
2.
On the File menu, click Delete. The Confirm Folder Delete dialog box will be
displayed.
When files/folders are deleted they are not removed
from the disk but they are kept in the Recycle bin. To remove it completing you
empty the bin. However restoring files
is possible.
CHANGING A DESKTOP SETTINGS
To change setting you may use control panel icon, settings in start menu or right click the desktop.
To change date / time double
click the clock on the task-bar.
Changing the Background of
your Desktop.
- Click start
- Click control panel
- Double click display icon
- Select background and choose the pattern you like
- Click Apply and click OK.
The fast way to do this is
to right click the desktop and selecting properties.
Setting a screensaver
A screensaver occupies your screen when the
computer is ideal.
Set your screensaver the fastest way by
right clicking the desktop and selecting properties.
Using My Computer icon
- Open my computer
- Open control panel
- Open display icon
- Select screen saver
- Choose one and set your delay time
- Click apply and click OK
Playing games
You need to
have fun!
·
Click
start
·
Point
to programs.
·
Point
to Accessories.
·
Point
to games
·
Click
the game you like.
A Windows game
Printing your work
When you finish creating your document you would like
to have a paper copy of it. Before printing a document, check if your printer
settings have been done. Print preview
to make sure that the font, margins, and other document features look the way
you want them to be before printing.
·
Open
the document.
·
Select print preview from the file menu
·
Select Printer. The
Print window will be displayed.
·
Select printer name, Page range, the number of copies you
need etc.
·
Click OK for printing to begin.
Making a backup of your floppy disk
·
Click
Computer icon and press enter.
·
Insert
the disk you want to copy in drive a:.
·
Click
the 3.5inch icon.
·
Click
the File and click Copy Disk to display the Copy Disk dialog box.
·
Click
start to begin the copy process.
·
When
prompted remove disk and place the backup disk in drive a:
·
Click
OK.
·
When
the copy is made close copy disk dialog box.
SHUTTING DOWN THE COMPUTER
Shutting down the computer.
When all is
over you want to quit.
1.
Click start
2.
Click Turn Off Computer. The Window below will be displayed.
3.
Select Turn Off the computer.
The computer will
automatically go off. You will have to
turn of the Monitor.
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