(1) What is a computer?
A Computer is an electronic machine, which accepts Data,
performs calculation and produce result
(2) Define Data or what is a Data?
Data is a collection of raw facts and figures, given to
computer for processing.
(3) Define Information or what is a Information?
Information is the processed or meaningful Data that is
understandable by a person.
(4) Define Process or What is process?
Process is action that is performed on Data to convert
it to Information.
(5) What are the advantages or features of Computers?
Computers have become essential part of our life due
to these features: High Speed, Accuracy, High Power
of Remembering things and versatility.
(6) Define Hardware or What is a Hardware?
The physical parts or devices of the computers that
we see and touches are known as Hardware e.g. keyboard
(7) Define Software or What is software?
The Parts of computers which are intangible, these
consist of programs or set of instructions
(8) How many group of Hardware Components of Computer
are?
The Computer Hardware components can be divided into
these groups
(a) Input Devices
(b) Output Devices
(c) System Unit.
(D) Storage Devices
(e) Communication Devices
(9) Define Input Devices?
Input devices are used to enter data or instruction
into the computer like keyboard , mouse etc
(10) Which are the Input Devices or Component of
computer?
There are following input devices or components of a
computer
(1) Keyboard is used to enter data into computer,
there are 102-105 keys are on it
(2) Mouse is used to input instructions with a
pointer on the screen, it is also called pointing
device
(3) Scanner is used to input printed documents
and images into the computer
(4) Microphone is used to input human voice or any
other sound into the computer
(11) Define Output devices or what are out put devices
The out put devices show that information which is
obtained from computer after processing.
(12) Which are the Output devices in computers?
There are following output devices with computer
(1) Monitor is Output device; it is just like T.V and also
known as VDU (Video Display Unit)
(2) Printer is also Output device that produce the output
on paper.
3) Speaker is that kind of Output device that produces
sound Output.
(13) Define System unit or what is system unit?
System unit is the main unit of computer; it is
consist of rectangular box, often called C.P.U
(14) What are the parts of Parts of System Unit?
System unit consist of following parts
(1) Processor performs all types of processing on
data to produce results; it is main part of system unit
(2) Mother Board is the main circuit board in system
unit. It is also called system board.
(3) Memory is used to store Data that is used by
processor for different tasks. It is essential part
of a computer.
(15) What are the storage devices in computers ?
Storage devices are use to keep the data and programs
stored permanently so that available for later
(1) Hard Disk is permanent storage device.
Magnetic plates are used to store Data in Hard Disk.
(2) Floppy Disk is removable storage device. It is
used to transfer Data form one computer to another.
(3) CD / DVD are soft plastic made storage disks
(4) USB is also removable storage device
(16) Define Communication devices.
Devices which are used to transfer information from on
computer to another are called communication devices
(17) Which are the Communication devices in computers?
Modem is communication device use to connect the
computers to the internet.
(18) How a Computer works?.
Computer works according to following order
(1st) Input Operation.
Data is entered into computer using input device
e.g. keyboard, mouse
(2nd) Processing Operation
Processor or CPU performs calculation or processing.
(3rd) Output Operation
Results produced by the processor is sent to the Output device like monitor
(4th ) Storage Operation
Data is stored by storage devices
Fill in the Blanks
(1) Information is the processed or meaningful Data
(2) CPU stands for Central Processing Unit
(3) DVD stands for Digital versatile Disk
(4) The Physical Parts or devices of the computer
that we can see and touch known as Hardware
(5) Scanner is used to input printed document
and images into computer
(6) The Information obtained from the computer after
processing is called Output
(7) Memory is used to stored data that is used by the
processor.
(8) Monitor is an important type of output device.
Monitor is also known as VDU
(9) Communication is process of transferring information
from one computer to another.
(10) During Storage operation Data is stored in storage
device for later use.
A Computer is an electronic machine, which accepts Data,
performs calculation and produce result
(2) Define Data or what is a Data?
Data is a collection of raw facts and figures, given to
computer for processing.
(3) Define Information or what is a Information?
Information is the processed or meaningful Data that is
understandable by a person.
(4) Define Process or What is process?
Process is action that is performed on Data to convert
it to Information.
(5) What are the advantages or features of Computers?
Computers have become essential part of our life due
to these features: High Speed, Accuracy, High Power
of Remembering things and versatility.
(6) Define Hardware or What is a Hardware?
The physical parts or devices of the computers that
we see and touches are known as Hardware e.g. keyboard
(7) Define Software or What is software?
The Parts of computers which are intangible, these
consist of programs or set of instructions
(8) How many group of Hardware Components of Computer
are?
The Computer Hardware components can be divided into
these groups
(a) Input Devices
(b) Output Devices
(c) System Unit.
(D) Storage Devices
(e) Communication Devices
(9) Define Input Devices?
Input devices are used to enter data or instruction
into the computer like keyboard , mouse etc
(10) Which are the Input Devices or Component of
computer?
There are following input devices or components of a
computer
(1) Keyboard is used to enter data into computer,
there are 102-105 keys are on it
(2) Mouse is used to input instructions with a
pointer on the screen, it is also called pointing
device
(3) Scanner is used to input printed documents
and images into the computer
(4) Microphone is used to input human voice or any
other sound into the computer
(11) Define Output devices or what are out put devices
The out put devices show that information which is
obtained from computer after processing.
(12) Which are the Output devices in computers?
There are following output devices with computer
(1) Monitor is Output device; it is just like T.V and also
known as VDU (Video Display Unit)
(2) Printer is also Output device that produce the output
on paper.
3) Speaker is that kind of Output device that produces
sound Output.
(13) Define System unit or what is system unit?
System unit is the main unit of computer; it is
consist of rectangular box, often called C.P.U
(14) What are the parts of Parts of System Unit?
System unit consist of following parts
(1) Processor performs all types of processing on
data to produce results; it is main part of system unit
(2) Mother Board is the main circuit board in system
unit. It is also called system board.
(3) Memory is used to store Data that is used by
processor for different tasks. It is essential part
of a computer.
(15) What are the storage devices in computers ?
Storage devices are use to keep the data and programs
stored permanently so that available for later
(1) Hard Disk is permanent storage device.
Magnetic plates are used to store Data in Hard Disk.
(2) Floppy Disk is removable storage device. It is
used to transfer Data form one computer to another.
(3) CD / DVD are soft plastic made storage disks
(4) USB is also removable storage device
(16) Define Communication devices.
Devices which are used to transfer information from on
computer to another are called communication devices
(17) Which are the Communication devices in computers?
Modem is communication device use to connect the
computers to the internet.
(18) How a Computer works?.
Computer works according to following order
(1st) Input Operation.
Data is entered into computer using input device
e.g. keyboard, mouse
(2nd) Processing Operation
Processor or CPU performs calculation or processing.
(3rd) Output Operation
Results produced by the processor is sent to the Output device like monitor
(4th ) Storage Operation
Data is stored by storage devices
Fill in the Blanks
(1) Information is the processed or meaningful Data
(2) CPU stands for Central Processing Unit
(3) DVD stands for Digital versatile Disk
(4) The Physical Parts or devices of the computer
that we can see and touch known as Hardware
(5) Scanner is used to input printed document
and images into computer
(6) The Information obtained from the computer after
processing is called Output
(7) Memory is used to stored data that is used by the
processor.
(8) Monitor is an important type of output device.
Monitor is also known as VDU
(9) Communication is process of transferring information
from one computer to another.
(10) During Storage operation Data is stored in storage
device for later use.
