Computer Basics

1. WHAT IS COMPUTER?
COMPUTER is an electronic machine that follows a set
of instructions in order that it may be able to accept
and gather data and transform these into information.

2. OUTLINE
• 1. COMPUTER BASIC
• 2. INPUT UNIT AND OUTPUT UNIT
• 3. CENTRAL PROCESSING UNIT
• 4. HARDWARE AND SOFTWARE
• 5.CREATING, MOVING,DELETING FOLDER AND FILES

4. Computers in Daily Life
Accounts
• Games
• Educational
• On-line banking
• Smart ID cards
• Supermarkets
• Working from home (Tele-working)
• Internet

5. A computer system consists of three primary
units:
1.Input units – accept data
2.Processor unit – processes data by performing comparisons and
calculations
3.Output units – present the results

6. Central Processing Unit
• Brain of the computer.
• It directs and controls the entire computer system and performs
all arithmetic and logical operations.

7. Input Devices
• Allows data and programs to be sent to the CPU.
• Keyboard
• Mouse
• Joystick
• Microphone
• Webcam
• Scanner
• Monitor

9. Other Pointing Devices
• Trackball
• Touch pad
• Touch Screen

10. • Joystick – input device for computer games
• Light Pens – light-sensitive penlike device
• Stylus – penlike device commonly used with tablet PCs and PDAs

11. Scanning Devices
• Optical scanners
• Card readers
• Bar code readers
• Character and mark recognition devices

12. Output Devices
• Media used by the computer in displaying its responses to our
requests and instructions.
• Monitor
• Audio Speakers
• Printer

14. Hardware
• Hardware is basically anything that you can touch with your fingers.
• Computer Case
• CPU (central processing unit...Pentium chip)
• Monitor
• Keyboard & Mouse
• Disk Drive, Zip Drive, CD-ROM, DVD,
• Hard Drive
• Memory (RAM)
• Speakers
• Printer

15. Software
• Software is the programs and applications that tell the computer
what to do and how to look.
• Computer programmers write the codes/instructions that make-up
software applications/programs.
• HTML is a type of computer programming language that allows
programmers to make web pages.

19. • PCI-Peripheral Component Interconnect Local Bus
• AGP- Accelerated Graphics Port bus
• USB- Universal Serial Bus Port

20. Introduction into files and folders (directory)
 A file, or document, is a collection of data that has a name and is
stored in a computer
 A folder stores a number of files

21. Organizing Files and Folders

22. Working with Folders and Files
• Right-click a blank area in the folder window, point to New, and
then click Folder)
• Type a name for the folder, and then press the Enter key.

23. Working with Folders and Files
•Moving and Copying Files and Folders
•Moving a file removes it from its
current location and places it in a
new location you specify
•Copying places the file in both
locations

24. Working with Folders and Files
• Naming and Renaming Files
• Filenames provide important information about
the file, including its contents and purpose
• Main part of the filename
• Dot
• File extension
• A filename extension identifies file type and
indicates program in which file was created
• Deleting Files and Folders
• Recycle Bin is an area on your hard disk that holds
deleted files until you remove them permanently

25. THANK YOU