Different Components of Computer

Different Components of Computer

1. The different components of
a computer system

2. What is a computer?
A computer is an electronic device that manipulates information, or data.
The system Unit
Keyboard
Mouse
ItiscalledaComputerSystem:
Asitisnotasinglemachinebutacollectionofmanydeviceswhichworktogethertoperformatask.
Monitor

4. Parts Of The Computer System

5. Users
Peoplesarethecomputeroperators,
alsoknownasusers.

6. What is hardware?
Computer hardware refers to the physical parts
or components of a computer
All of which are physical objects that can be touched

8. What is Peripheral?
(External parts of computer)
A peripheral is the general term used to describe devices which are externally
connected to a computer.
Input Devices:
used to interact with or send data to the computer
e.g. mouse, keyboards, etc…
Output Devices:
which provides output to the user from the computer
e.g. monitors, printers, etc…
Storage Devices:
which stores data processed by the computer
e.g. Hard drives, flash drives, etc…
Network devices:
8

9. What you put into a computer (input) controls what you get out of it (output).
The equipment which you use to put information (called data) into a computer is called input devices.
The equipment we use to get out of the computer is called output devices.
Activity
A. Input and Output devices
1.Here are some input devices. Write the missing letters.
(1) k __ __ __ __ __ __ d (2) j __ __ s __ __ __ k
(3)__ __ u __ e (4) s __ __ n n __ r
2.Here are some output devices. Write the missing letters.
(1) l a s __ __ P __ __ n __ __ r(2) __ __ n __ t __ __
(3) S p __ __ k __ __ __ (4) p __ __ t __ e __

10. 4. Sort these devices into the correct column.
Scanner,Printer,Keyboard,Mouse,Monitor,Joystick,Speaker, Projector, Dongles and modems
Digital camera, Microphone, Barcode reader, Webcam, Game controller, USB flash drives, Plotter,
touch screen
Input Devices Output Devices I/O Devices Storage Devices Network Devices

11. 11

12. Storage
Byte –Stores the equivalent of one character.
Kilobyte (1 KB) –1,024 bytes.
Megabyte (1 MB) –1,048,576 bytes.
Gigabyte (1 GB) –1,073,741,824 bytes.
Terabyte (1 TB) –1,099,511,624,776 bytes.
12

13. B. Storage devices
Draw lines to match the different secondary storage
devices to the read/write equipment.
Activity
13

14. What is software?
Software is a Set of Instructions that makes the computer perform
tasks. In other words we can say that, software tells the computer what to do.
Will learn more about software on the 3
rd
day……..

15. 1.What is a computer?
2.How the data stored or how the computer sees the data?
3.What is hardware?
4.Give some Examples for internal components of a computer?
5.Give some examples for external parts of computer?
6.What is software?
7.What are the main types of PC?
8.Give some examples for the companies that makes PC?
9.What is a server?
Quiz Time

16. What is data?
DATA is a collection of independent and Unorganized
Facts.

17. Types of Data
Text
Numbers
Graphics
Audio
Video
Images

18. What is information?
Information is the processed and Organized data presented in a
Meaningful form.

19. Information Processing Cycle
PROCESSING SYSTEMDATA INFORMATION
A computer Primary job is to process these tiny pieces of Data
in various ways, Convertingthem into useful Information

20. Raw Data
Context
Information
Process
51,77,58,82,64,70
Test scores achieved by students
Average test score is 67%.
This shows that the first
student’s mark is way below
average
Process
Example:

21. Data Information
Meaning
Data is raw, unorganized facts that need to be
processed. Data can be something simple and
seemingly random and useless until it is organized.
When data is processed, organized,
structured or presented in a given context so
as to make it useful, it is called Information.
Example Each student's test score is one piece of data
The class' average score or the school's
average score is the information that can be
concluded from the given data.

22. Functionsof an Information
Processing System
1.It accepts and gather data (INPUT)
2.It processes data to become information (PROCESSING)
3.It stores data and information (STORE)
4.It presents information (OUTPUT)

23. Any information or data that's Entered or sent to the computer to be
Processed is considered Input.

24. What is output?
Any information that has been processed and comes from a
Computer or computer device is considered output.

25. Whywe use computer?

26. Think about the Activities you perform or want to perform
using a computer
Challenge!

27. Don’t you use computer to
Type documents?

28. Don’t you Send Email & Browse the Web?

30. Is it a Computer that controls Stoplights
so you can drive to work?

31. How did the Cashier scan and Calculateyour
Grocery items?

32. Is the Weather map on Television Computer-generated?

34. Don’t you use computer to communicate?

35. Entertainment

36. What makes a Computer Powerful?

37. •Desktop Computer
•Laptop
•Netbook
•Tablet
•PDA (Personal Digital Assistant)
•SmartPhone
Types Of Computer Equipment

38. A computer designed for use by one person at a time.

39. Desktop Computer
Lap top Computer
What are the different types of PCs?

40. 40Designed so All of the Components fit on or under a Desk or Table

41. 41
What is Laptop computer?
A computer that is portable small enough to fit on your
lapand suitable for use while travelling.

42. What are the Main types of software?
System software
Application software

43. 43
What is system software?
OperatingSystem(OS)
isasetofprograms
thatcoordinatesall
activitiesamong
computerhardware
devicesandallows
userstorun
applicationsoftware
UtilityProgramsallowtheuserto
performmaintenance-typetasks
usuallyrelatedtomanaginga
computer,itsdevicesoritsprograms
Programs that control the operations of the computer and its devices

44. 44
Computer Software
What is application software?
Presentation
Graphics
Spreadsheet
Database
Word
Processing
Programs that perform specific tasks for users