1. TEKNOLOGI MAKLUMAT DALAM PENDIDIKAN
KULIAH 2:
TEKNOLOGI MAKLUMAT DALAM PENDIDIKAN
DR. NORHASYIMAH HAMZAH
FAKULTI PENDIDIKAN TEKNIKAL DAN VOKASIONAL

2. KOMPUTER???

3. Computer (cont..1) What is a computer???
Is a device that receives input from the user through a mouse or keyboard, processes it in some fashion and displays the result on a screen.
A list of procedures and steps, or a lecture slide with media.

4. Computer (cont..3) Computer performs 4 major function: 2. Process
1.Input
2. Process
A list of procedures and steps, or a lecture slide with media.
3. Output
4. Storage

6. How do computers process data and information?
Data can be stored on a variety of fixed or removable media.
In the computer information is stored in files and organised into folders
Files can then be organised into folders.
Data is represented by a string of 0s and 1s.
Each 0 or 1 is called a bit and is the smallest unit a computer can process.
A group of eight bits is a byte, and can represent a keyboard character or a command to the computer.
How do computers process data and information?
Data can be stored on a variety of fixed or removable media.
The hard drive is the main form of fixed data storage.
On the computer information is stored in files and organised into folders.
No data or information on a hard drive can exist outside a file.
Files can then be organised into folders.
When we look at a file in more detail, we see that data is represented by a string of zeros and ones.
Each 0 or 1 is called a bit and is the smallest unit a computer can process.
A group of eight bits is a byte, and can represent a keyboard character or a command to the computer.

7. How do computers process data and information? (cont..1)

8. How do computers process data and information? (cont..2)
Bits and bytes -the language of computers-to tell computers what to do
What else can bit and bytes be used for?
To represent the quantity of data and information that it inputs or outputs

9. INPUT
OUTPUT

10. Input devices Keyboard Mouse Scanner Microphone Digital camera Stylus
Your fingers
Example graph/chart.

11. keyboard

12. keyboard Dvorak Qwerty Puts the most commonly used keys at “home keys”
The QWERTY layout was originally designed for typewriters, not computers, and was meant to slow typists to prevent typewriter keys from jamming.
The QWERTY layout is therefore considered inefficient because it slows typing speeds.
Puts the most commonly used keys at “home keys”
Reduces distance of finger stretches
The QWERTY keyboard gets its name from the first six letters in the top-left row of alphabetic keys on the keyboard.
The QWERTY layout was originally designed for typewriters, not computers, and was meant to slow typists to prevent typewriter keys from jamming. The QWERTY layout is therefore considered inefficient because it slows typing speeds.
Now that technology can keep up with faster typing, other keyboards are being considered.

13. Virtual laser keyboard
The virtual laser keyboard projects the image of a QWERTY keyboard on any surface. Sensors detect typing motions and the data is transmitted to a computing device via Bluetooth technology.

14. Mice Roller ball mouse Trackball Optical mouse Less expensive
Harder to keep clean
Trackball
Harder to control
Stationary on desk
Optical mouse
Needs no mouse pad
Doesn’t need cleaning
More expensive
The standard mouse has a rollerball on the bottom, which moves when you drag the mouse across a mousepad.
A trackball mouse remains stationary and doesn’t demand much wrist motion, so it’s considered healthier on the wrists.
The optical mouse uses an internal sensor or laser to detect the mouse’s movement. Optical mice are often a bit more expensive than traditional mice, but because they have no moving parts on the bottom, there is no way for dirt to interfere with the mechanisms and less chance of parts breaking down.
Wireless mice send data to the computer by radio or light waves.

15. MOUSE
CORDLESS MOUSE
OPTOMECHANICAL MOUSE

16. What other tasks can be done with a mouse?
Magnifier

17. What other tasks can be done with a mouse?
Web search

18. What other tasks can be done with a mouse?
File storage
Includes a wireless USB receiver that contains flash memory to store or back up your files

19. Other input devices Touch pad (or track pad) Joysticks Touch screen
Smart pen
Webcam

20. SCANNER Similar to a copy machine 2 types Optical scanner
Optical mark recognition

21. Optical mark recognition

22. Ex: OPTICAL READER (OMR)

23. OPTICAL SCANNER

24. BAR CODE SCANNER

25. SNAPJET

26. OTHERS INPUT DEVICES USER INPUT DEVICES Home user & Small Business
-enhanced keyboard or ergonomic keyboard
-joystick
-Scanner
-digital camera
-microphone
-video digitilizer
Mobile user
Wireless mouse
Trackball, touchpad,, pointing stick on laptop
Pen computer
Digital camera
Large business
Enhanced keyboard or ergonomic keyboard
Touch screen
Pen computer with light
Scanner
OCR or OMR or bar code reader
Microphone
Video camera for video conferences
Speech recognition program