computer accessory

              

Q1:What is computer accessory?

Ans:A computer accessory is a piece of hardware that can be installed with a computer to make it more useful.

Q2:Name different kinds of keyboard?

Ans:Alphabet keys

Numeric keys

Function keys

Arrow keys

Special keys

Q3:What is joystick?

Ans:A joystick is an input device which consist of vertical handle which which can move in two directions. It is used to play games.

Q4:What is webcam?

Ans:Webcam is also is known is webcamera.It is used to transfer image to the computer.

Q5:What is compact disc(CD)?

Ans:Compact disc or CD is an optical disc which is used to store data.Capacity of CD is measured in megabytes( MB)

Q6:What is digital video disc(DVD)?

Ans:Digital video disc is also called DVD.They can store data.Storage capacity od DVD’s is measured in Gigabytes(GB).

Q7:What is USB flash drive or pen drive?

Ans:USB stands for universal serial bus.It is portable storage device .USB flash drive is also called pen drive.

Q8:What are monochrome monitors?

Ans:Monochrome monitors display result in one colouronly.They are called black and white monitors

Q9:What are colour monitors?

Ans:Thecolour monitors display results in many colours.

Q10:What are LCD monitors?

Ans:LCD (Liquid Crystal Display) monitor is modern form of colourmonitor.LCD is thinner and occupies lesser space.

Q11:What is speaker?

Ans:A speaker is output device.It help us to listen music and watch movies .

General Knowledge Science Test Prepration

General Knowledge Science

By:  Nadeem Ashraf Janjua

o   Major parts of Human Body and Function

Ear	For hearing	Teeth	For Biting
Nose	For Smell	Eyes	For See/Watching
Feet	For Walking	Hands	For writing and daily work

o   Milk Teeth

o   Permanent Teeth

o   Senses

ü Hearing

ü Taste

ü Smell

ü Vision

ü Touch

o   Joints

Elbow Joint, Neck Joint, Knee Joint

o   Skeleton

ü It consist of 2016 bones

ü It provide support to human body and protect our inner organs.

o   Keeping Healthy

ü Eat Healthy Food

ü Get Regular Exercise

ü Get Enough Sleep

ü Early to sleep and early to awake

Living and Non Living

o   Water

A colorless, tasteless liquid, main component of Earth and life and all of living organisms

o   Fire

The hot, bright flames produced by things that are burning

o   Environment

Any thing that is around us called on environment

o   Environment Pollution

Presence of harmful pollutants in an environment that makes this environment unhealthy to live in

o   Air Pollution

It is a mixture of solid particles and gases in the air

o   Water Pollution

It is the contamination of water bodies usually as a result of human objectives

Plants and Animals

o   Trees

Neem Tree, Amla Tree, Peepal Tree, Tulse Tree

o   Shurbs

Small woody plants. Example Aloe Vera

o   Herbs

Leafy green or flowering plants. Example Parsley, Mint, Basil

o   Land Animal

Which live entirely on land. Examples Cats, Spider, Ants

o   Water Animals

Which live entirely in water. Example Fish, Octopuses, Lobster

o   Birds

Parrot, Owl, Pigeons, Dove

o   Domestic Animals

Horse, Cow, Sheep, Dog, Cat, Goat

o   Wild Animals

Bear, Wild Hogs, Deer

o   Animals and their young ones

Hen	Chick
Cat	Kitten
Dog	Puppy
Buffalo	Calf
Duck	Ducking

o   Endangered Animals

Snow Leopard, Bald Eagle, Polar Bear, Red Panda

o   Endangered Plants

Wild Rise, Georgia Aster

o   Importance use of Animals

We get food, fiber, labor, medicines from animals. They are used for economic purpose.

o   Importance of Plants

They maintain atmosphere. They release oxygen, which animals, human need to breathe. They give us food to eat.

o   Importance of Forests

We got timber, food, fuel from them. They protect environment.

Computer Note

Computer Notes

Prepared by : Nadeem Ashraf Janjua

Q	Why we use computer in Schools ?
Ans	Ø To prepare result. Ø To make time table. Ø To type letters. Ø For learning and understanding.
Q	Why computer is used in Banks?
Ans	To keep account of customer’s money to make entries is passbooks.
Q	What is the use of computer in Offices?
Ans	Ø To type letters and reports. Ø To prepare salary slips.
Q	Why we use computer at Home?
Ans	Computer are used at home Ø To draw picture Ø To play games Ø To listen music
Q	What is the use of computer in Shops?
	Ø To make bills Ø To keep record of items Ø To record the price of items
Q	What is the use of computer in Hospital?
Ans	Computers are used in hospital to keep the record of patient to diagnose the disease.
Q	Why computer used in Railway, Airport and Food Center?
Ans	Computer are used to Ø Record of Tickets Ø For Reservations Ø For price Record
Q	What are three essential parts of computer?
Ans	Ø CPU Ø Keyboard Ø Monitor
Q	What other devices makes a computer useful?
Ans	Ø Mouse Ø Keyboard Ø Printer Ø CD
Q	What is a Keyboard?
Ans	ü Keyboard is an input device ü It looks like a typewriter ü It has many keys to enter data into computer
Q	What is CPU?
Ans	CPU (Central Processing Unit) is the brain of computer that performs all the calculation.
Q	What is the brain of Computer?
Ans	Monitor is an output device that shows the result of work done by the computer .
Q	What is (VDU)?
Ans	Monitor is also known as VDU. The full form of VDU is video Display Unit.
Q	What is Mouse?
Ans	Mouse is a input device. It is used to click and select the items. It has two button and a wheel. A mouse is kept on mouse pad.
Q	What are the types of Mouse?
Ans	There are two types. ü Mechanical Mouse (Has a track Ball) ü Optical Mouse (Has laser beam)
Q	What is a printer?
Ans	Printer is an output device it prints the result on paper.
Q	What is a Floppy Disk?
Ans	Floppy is a storage device. A floppy has a square shape and 3.5 inches in size.
Q	What is CD?
Ans	The full form of CD is Compact Disk.  It is a storage device.
Q	What is Digital Video Disk?
Ans	Digital Video Disk is also known as DVD. It is a storage device.
Q	What is USB?
Ans	USB stands for Universal Serial Bus. USB flash drive is portable device. It is fast and small in size, and store large data.
Q	What is Pen Drive?
Ans	USB (Universal Serial Bus) is also known as Pen Drive.
Q	What is the difference between CD and DVD?
Ans	CD ü It Stores small amount of Data			DVD It Stores Large amount of Data
Q	What is the difference between keyboard and mouse?
Ans	Keyboard ü Keyboard is used enter text					Mouse     Mouse is used to Click and select                  program
Q	What is the difference between Monitor and Printer?
Ans	Monitor ü Monitor shows result on screen				Printer      Printer prints result on paper
Q	What happens on the screen when you move mouse on Mouse Pad?
Ans	When we move mouse on mouse pad an arrow like pointer mouse on the screen.
Q	What is the use of Storage devices? Give name of two devices.
Ans	Storage devices are used to store data. Some are CD, DVD, USB, Floppy.
	How does a Computer Work
Q	Name the three major tasks performed by the computer?
Ans	The three major tasks are ·        Input ·        Processing ·        Output
Q	Name the two parts of computer which perform input function?
Ans	The three major tasks are ·        Keyboard ·        Mouse
Q	Name the two parts of computer which perform output?
Ans	The three major tasks are ·        Monitor ·        Printer
Q	What do you mean by processing?
Ans	The calculation work is called processing For Example! ü Adding two number is called processing  2+2=4 ü Making Juice is processing
Q	What is input? Explain with example.
Ans	The data which you give to compute is called input. For Example ü Enter two number 7,7 ü Put the Orange in Juice
Q	What is Output? Explain with example.
Ans	The result of work done by the computer is output. For Example. ü Result of two number addition is 14 ü The result is Juice in glass
Q	Write two examples of input, Process and Output?
Ans	v Adding two number		v Making Orange Juice
	Input Process Output	Enter two number 7,7 Add two number 7+7 Result =14	Print orange in Juicer Make the Juice Juice in Glass
THE  END Nadeem ashraf janjua