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Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 1.6 Inside the system unit [Hardware] Class: ________________ Name: ________________.

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Presentation on theme: "Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 1.6 Inside the system unit [Hardware] Class: ________________ Name: ________________."— Presentation transcript:

1 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Inside the system unit [Hardware] Class: ________________ Name: ________________

2 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part System unit Computer System

3 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Computer System

4 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Inside the system unit

5 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Inside the system unit

6 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Function of Parts of a Computer System (Hardware) A computer is made up of different parts Each part performs different function or operation Process data 1.

7 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Function of Parts of a Computer System (Hardware) A computer is made up of different parts Each part performs different function or operation Process data

8 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 system unitThe casing of the system unit (Cont’d) Comes in a variety of design 1.7 Function of Parts of a Computer System (Hardware – system unit) system unit

9 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 The casing of the system unit (Cont’d) Comes in a variety of design 1.7 Function of Parts of a Computer System (Hardware – system unit) system unit

10 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 All processing takes place in the system unit. The system unit contains the motherboard 1.7 Function of Parts of a Computer System (Hardware – motherboard)

11 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 A motherboard is the central printed circuit board (PCB) that holds many of the crucial components of the system, such as the CPU, memory, graphics adapter and sound card while providing connectors for other peripherals such as printers, scanners, hard disks, microphones, web cams, and digital cameras. 1.7 Function of Parts of a Computer System (Hardware - motherboard) the motherboard

12 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Function of Parts of a Computer System The BRAIN

13 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 the processor, Central Processing Unit (CPU), also called processor brain –It is the brain of the computer –It processes data and instructions –It takes instructions and executes them –It coordinates and controls flow of data between different parts of the computer 1.7 Function of Parts of a Computer System (Hardware - CPU)

14 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Function of Parts of a Computer System The Memory / Storage Devices

15 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 For a computer to work, it needs to remember –Instructions for the computer’s hardware (programs) –User’s information/ data 1.7 Function of Parts of a Computer System (Hardware – Memory/ Storage )

16 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Function of Parts of a Computer System (Hardware – Memory/ Storage) System Unit contains the Primary memory and some secondary memory: Primary storage / memory Read Only Memory (“ROM”) Stores data permanently Random Access Memory (“RAM”) Stores data temporarily Secondary Storage/ Storage Hard disk

17 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Function of Parts of a Computer System (Hardware – Memory/ Storage)

18 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 –Primary memory Stores data currently or frequently used 1.7 Function of Parts of a Computer System (Hardware – Memory/ Storage) Primary Memory

19 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Function of Parts of a Computer System (Hardware – Memory/ Storage ) Primary Memory

20 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 –Secondary storage media Stores data and programs permanently Able to store large amount of data 1.7 Function of Parts of a Computer System (Hardware – Memory/ Storage )

21 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Function of Parts of a Computer System (Hardware – Memory/ Storage )

22 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Function of Parts of a Computer System Input Devices

23 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Function of Parts of a Computer System – Input Devices All these are input devices Scanner Scans information on hard copy into the computer Microphone Captures sound into the computer Input Devices

24 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 The keyboard and mouse Important tools because they are used to control the computer Designs have improved greatly 1.7 Function of Parts of a Computer System – Input Devices Input Devices

25 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 Used to input data to the computer by typing. It is used to type words or numbers into the computer system. Inputs data corresponding to the key being pressed 1.7 Function of Parts of a Computer System – Input Devices

26 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 Used to input data to the computer by clicking It is a pointing device that directs a pointer on the monitor. 1.7 Function of Parts of a Computer System – Input Devices

27 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 Input sound/ audio into the computer system microphone 1.7 Function of Parts of a Computer System – Input Devices

28 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 Reads or scans information into the computer. The information can be text or graphics. It is usually to scan photographs 1.7 Function of Parts of a Computer System – Input Devices

29 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 The unit that plugs into a game console to control the game play. Commonly used in computer games. 1.7 Function of Parts of a Computer System – Input Devices Game console controller.

30 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 Barcode reader:- reads information on a barcode. Commonly used in libraries and supermarkets 1.7 Function of Parts of a Computer System – Input Devices Barcode reader

31 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 Reads marks made on specially printed forms and inputs into computer 1.7 Function of Parts of a Computer System – Input Devices

32 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Function of Parts of a Computer System – Input Devices

33 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Function of Parts of a Computer System (Output Devices)

34 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 All these are output devices Monitor Like a television screen Displays information from the data inputted Printers Display information on paper Hard copy Some prints in colour; others print in black only Speakers Produces sound and music generated by the computer 1.7 Function of Parts of a Computer System – Output Devices

35 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 The display unit Displays information onto a screen Main way computer communicates with users 1.7 Function of Parts of a Computer System – Output Devices

36 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 The display unit Many types invented over the years 1.7 Function of Parts of a Computer System – Output Devices

37 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Function of Parts of a Computer System – Output Devices The display unit Many types invented over the years

38 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 Printers: Sends information produced by the computer system in a printed form. Prints text or illustrations onto paper There are different types of printers. Main types: Thermal printer Print created by pushing heated pins against heat sensitive paper Cheap and fast Used widely in supermarket checkouts and ATM 1.7 Function of Parts of a Computer System – Output Devices

39 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 Printers (Cont’d) Inkjet printer Print created by spraying dots of ink onto paper High quality text and graphics Slow Cost of printer low but cost of ink is high 1.7 Function of Parts of a Computer System – Output Devices

40 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 Printers (Cont’d) Laser printer Print created by Applying ink powder (toner) to drum Toner on drum is then heated and applied to paper Very high quality text and graphics Fast Expensive Toner is sold in cartridges Expensive but can print more pages than an inkjet printer 1.7 Function of Parts of a Computer System – Output Devices

41 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Function of Parts of a Computer System – Output Devices

42 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 Printers (Cont’d) 1.7 Function of Parts of a Computer System – Output Devices

43 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Function of Parts of a Computer System – Output Devices

44 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Function of Parts of a Computer System (Other Devices)

45 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Function of Parts of a Computer System – 1.7 Function of Parts of a Computer System – Input/ Output Devices Touch screen:- input information by touching the screen. Commonly used in PDA, hand phones, bus terminals, tourist kiosks, and shopping centers. PDA Touch Screen GPS

46 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 Data logger An electronic instrument that has a microprocessor, data storage and a sensor Used to record measurements such as temperature A computer is used to display the measurements 1.7 Function of Parts of a Computer System – 1.7 Function of Parts of a Computer System – Input Devices – Data logger

47 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Function of Parts of a Computer System – 1.7 Function of Parts of a Computer System – Input/ Output Devices Printers (Cont’d) Multifunctional printers Multiple functions Printing, scanning, copying and faxing Convenient Disadvantages Over-using one function may interfere with other functions More likely to break down due to the many functions

48 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Cables Wired and wireless computer parts Computer parts classified into wired and wireless ones Wired computer parts Physically connected by wires or cables Connected to attachments called ports

49 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Network Wired and wireless computer parts Wireless computer parts No physical connection Example: wireless router, cordless mouse

50 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 1.Keyboard, mouse, flat-bed scanner, microphone 2.Monitor, speaker, laser printer, inkjet printer (Other answers: projector) 3.CD-ROM drive, hard disk (Other answers: thumb drive) 1.10 Q&A

51 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Q&A 1.Inkjet 2.Laser 3.Dot matrix 4.Laser

52 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Q&A

53 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part Q&A

54 Function of the Computer Parts C O B : C O M P U T E R B A S I C S COB 1 Part 6 End of Part 7 To return to the lesson yyss.wikispaces.com/Computer+System Or use the Back button.


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