1. Computer Parts
There are many parts that work together to make a computer work.

2. Hardware
Physical parts of the computer, including processor and memory chips, input/output devices, tapes, disks, modems, cable, etc.

3. CPU
The Central Processing Unit – The chip or chips that interpret and execute program instructions and manage the functions of input, output, and storage devices.

4. Processor
The CPU – The chip or chips that interpret and execute program instructions and manage the functions of input, output, and storage devices.

5. Computer Case
Contains the major components of the computer. It helps protect them.

6. Front of the Computer Case

7. Inside the Computer Case

8. Monitor
A display screen to provide “output” to the user. It is where you view the information your are working on.

9. Video Card
Connects the computer to the monitor. It is a circuit board attached to the motherboard that contains the memory and other circuitry necessary to send information to the monitor for display on screen.

10. Keyboard
Used to enter information into the computer and for giving commands.

11. Mouse
An input device operated by rolling its ball across a flat surface. The mouse is used to control the on-screen pointer by pointing and clicking, double-clicking, or dragging objects on the screen.

12. Touchpad
A pressure-sensitive and motion sensitive device used in place of a mouse.

13. USB Flash Drive
A small, portable flash memory card that plugs into a computer’s USB port and functions as a portable hard drive. USB flash drives are publicized as being easy-to-use as they are small enough to be carried in a pocket and can plug into any computer with a USB drive. USB flash drives have less storage capacity than an external hard drive, but they are smaller and more durable because they do not contain any internal moving parts.

14. External Hard Drive
A hard drive that is outside of the computer case in its own enclosure.

15. CD Rom Drive
The drive that plays CDs and reads data that has been stored on the CD.

16. CD
Compact Disk – A type of optical storage device.

17. Floppy Disk Drive
A device that holds a removable floppy disk when in use; read/write heads read and write data to the diskette.

18. Hard Disk
Magnetic storage device in the computer.

19. RAM Random Access Memory
RAM is a computer’s temporary memory, which exists as chips on the motherboard near the CPU. It stores data or programs while they are being used and requires power.

20. ROM
Read Only Memory-
Memory that considered Long Term Storage. Rom retains its contents even when the computer is turned off. It stores critical programs such as programs that boots the computer.

21. Printer
An output device that produces a hard copy on paper. It gives information to the user in printed form.

22. Barcode Reader
An input device that converts a pattern of printed bars into a number that a computer can read. They are often used by businesses to quickly input price and product information.

23. Scanner
A device that allows pictures to be placed into a computer.

24. Microphone
Allows the user to record sounds as input to their computer.

25. Speakers
Used to generate or reproduce voice, music, and other sounds.

26. Sound Card
Connects the speakers and microphone to the computer.

27. Modem
The place where the computer is connected to the phone line.

28. Network Card
A circuit board that connects the computer to the rest of the network usually using special cables.

29. Application Software
Programs that tell the computer what to do. It provides instructions that the CPU will need to carry out.

30. Operating System Software
This type of software manages RAM, controls peripheral devices, manages file operations (saving, opening, deleting, renaming, etc.), monitors system performance, and provides a user interface

31. DOS Disk Operating System
This software connects the hardware with the programs you want to run.
MS-DOS:
Microsoft DOS (Disk Operating System) is a command line user interface. MS-DOS 1.0 was released in 1981 for IBM computers.

32. Example of MS-DOS

33. Windows
A family of operating systems developed and produced by Microsoft Corp. It provides a software graphical user interface (GUI) used on IBM and compatible computers.

34. Example of Windows (GUI)

35. How does it all work together?

36. Computer
A computer is a machine that performs 4 basic functions: Input, Processing, Output, Storage
Input
Processing
Output
Storage

37. Computer System
A complete working computer that has all of the necessary parts to make the computer function.
Hardware
Software

38. Hardware
The physical components of the computer. The actual equipment you can see and touch.

39. Hardware
The physical components of the computer. The actual equipment you can see and touch.

40. Hardware
Peripheral
A peripheral is an external piece of hardware that is important, but not necessary for a computer system to work.

41. Hardware
Input
Devices
Processing
Output
Devices
Storage
Devices

42. Input Devices
Hardware that enables a computer user to enter data and programs into a computer.
Keyboard
Barcode Scanner
Mouse
Touch pad
Microphone
Game Controllers

43. The main parts of a computer system that process information.
Processing

44. Processing
The main parts of a computer system that process information.
CPU
Central Processing Unit
The CPU is often called the “brains” of the computer.

45. Hertz Hertz measures the speed of a CPU Megahertz Gigahertz Terahertz
Hertz = number of cycles per second
Megahertz
Gigahertz
Terahertz

46. Processing
The main parts of a computer system that process information.
CPU
Central Processing Unit
The CPU is often called the “brains” of the computer.
ROM
Read Only Memory
ROM is permanent internal memory that cannot be changed.

47. The main parts of a computer system that process information.
Processing
CPU
Central Processing Unit
The CPU is often called the “brains” of the computer.
ROM is permanent internal memory that cannot be changed.
ROM
Read Only Memory
RAM
Random Access Memory
RAM is temporary memory that can be changed.

48. Output Devices
Hardware that represents data as either hard copy or soft copy after is has been processed by the computer.

49. Output Devices Monitor
Hardware that represents data as either hard copy or soft copy after is has been processed by the computer.
Monitor
Represents data as “soft copy.” Some common monitors are CRT or flat-panel.

50. Output Devices Monitor Printer
Hardware that represents data as either hard copy or soft copy after is has been processed by the computer.
Monitor
Represents data as “soft copy.” Some common monitors are CRT or flat-panel.
Printer
Represents data as “hard copy.” Some common printers are laser or inkjet.

51. Output Devices Monitor Printer Speakers
Hardware that represents data as either hard copy or soft copy after is has been processed by the computer.
Monitor
Represents data as “soft copy.” Some common monitors are CRT or flat-panel.
Printer
Represents data as “hard copy.” Some common printers are laser or inkjet.
Speakers

52. Storage Devices
Needed for permanently storing important information such as computer programs, files, and data.

53. Storage Devices Magnetic Storage
Needed for permanently storing important information such as computer programs, files, and data.
Magnetic Storage
Hard Disk
Floppy Disk
Videotape
Plastic or metal platters that are coated with oxide and store data magnetically.

54. Storage Devices Magnetic Storage Optical Storage
Needed for permanently storing important information such as computer programs, files, and data.
Magnetic Storage
Hard Disk
Floppy Disk
Videotape
Plastic or metal platters that are coated with oxide and store data magnetically.
Optical Storage
CDs
DVDs
A storage medium on which data is recorded and read by two lasers

55. Storage Devices Magnetic Storage
Needed for permanently storing important information such as computer programs, files, and data.
Plastic or metal platters that are coated with oxide and store data magnetically.
Magnetic Storage
Hard Disk
Floppy Disk
Videotape
Optical Storage
CDs
DVDs
A storage medium on which data is recorded and read by two lasers
A storage medium on which data is recorded and read by two lasers
A small storage device that can be plugged into a USB port.
USB Storage

56. A set of instructions or programs that tell a computer what to do.
Software
A set of instructions or programs that tell a computer what to do.

57. Software
Operating System or
Platform
Applications or
Programs

58. This type of software manages RAM, controls peripheral devices, manages file operations (saving, opening, deleting, renaming, etc.), monitors system performance, and provides a user interface
Operating System

59. Operating System DOS, Windows, Vista
This type of software manages RAM, controls peripheral devices, manages file operations (saving, opening, deleting, renaming, etc.), monitors system performance, and provides a user interface
Operating System
Windows is a GUI OS environment that works with DOS. It uses icons and menus to make computers easy to use. You can multitask with Windows.
DOS, Windows, Vista
DOS is a command-line interface OS. It is not very user-friendly!

60. Operating System DOS, Windows, Vista Macintosh
This type of software manages RAM, controls peripheral devices, manages file operations (saving, opening, deleting, renaming, etc.), monitors system performance, and provides a user interface
Operating System
Windows is a GUI OS environment that works with DOS. It uses icons and menus to make computers easy to use. You can multitask with Windows.
DOS, Windows, Vista
DOS is a command-line interface OS. It is not very user-friendly!
Macintosh
Macintosh computers have their own operating system.

61. Other Operating Systems:
This type of software manages RAM, controls peripheral devices, manages file operations (saving, opening, deleting, renaming, etc.), monitors system performance, and provides a user interface
Operating System
Windows is a GUI OS environment that works with DOS. It uses icons and menus to make computers easy to use. You can multitask with Windows.
DOS, Windows, Vista
DOS is a command-line interface OS. It is not very user-friendly!
Macintosh
Macintosh computers have their own operating system.
Other Operating Systems:
Linux, UNIX, OS/2

62. Application Software or Programs
Programs that allow users to perform specific tasks.

63. Application Software or Programs
Programs that allow users to perform specific tasks.
Word Processing
Letters, reports, text

64. Application Software or Programs
Programs that allow users to perform specific tasks.
Word Processing
Letters, reports, text
Spreadsheets
Numbers

65. Electronic Presentations
Application Software or
Programs
Programs that allow users to perform specific tasks.
Word Processing
Letters, reports, text
Spreadsheets
Numbers
Slide Shows
Electronic Presentations

66. Electronic Presentations
Application Software or
Programs
Programs that allow users to perform specific tasks.
Word Processing
Letters, reports, text
Spreadsheets
Numbers
Slide Shows
Electronic Presentations
Browser
World Wide Web

67. Electronic Presentations
Application Software or
Programs
Programs that allow users to perform specific tasks.
Word Processing
Letters, reports, text
Spreadsheets
Numbers
Slide Shows
Electronic Presentations
Browser
World Wide Web
Database
Large collections of data

68. Electronic Presentations
Application Software or
Programs
Programs that allow users to perform specific tasks.
Word Processing
Letters, reports, text
Spreadsheets
Numbers
Slide Shows
Electronic Presentations
Browser
World Wide Web
Database
Large collections of data
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