9. knows as Qwerty basic input device
KEYBOARD
1.Traditional: full sized, rigid rectangular keyboards.
2.Flexible: ford or roll up for easy packing or storage.
3.Ergonomic: rectangular and a palm rest is provided.
4.Wireless: transmit input to the system unit though air.
5.PDA: used to send e-mail create document more.
10. Keyboard Key Information
keys Function Example
Toggle Turn feature on or off Caps Lock, Num Lock, Scroll Lock,
Combination Work only when help with another key. CTRL, ALT.
Navigation Control cursor/insertion point Arrow keys
Function Shortcut for specific keys. F1 to f12
Numeric Numbers and arithmetic symbol 0 to 9
Typewriter Alphabets numbers A to z, 0to 9
KEYBOARD
11.
12. Pointer, Locator, Arrow.
MOUSE
1.Mechanical mouse – it has ball on the bottom. Roller rotates
and Control the pointer
2.Optical mouse – no moving parts, it emits and senses light to
detect mouse moment
3.Cordless or wireless mouse – battery powered device. User
radio Waves or informed light waver to communicate.
13. Three devices similar to a mouse are trackballs
touch surface and Pointing sticks
Touch surface
Notebook
Moving and tapping finger on surface
Pointing stick Located in the middle of the keyboard Notebook
Joystick Use of button and triggers Notebook
Touch Screen
Monitor with a clear plastic outer layer, behind this layer
are crisscrossed invisible beams of infrared light
ATMs, restaurants,
Information center
Light Pen
Light sensitive pen like device closes photoelectronic
circuit to enter data.
Edit digital images
Stylus Pen Like Device P.D.A.
Graphical Tablets Use special graphics surface or Table. Mapmakers Artist, Engineers,
Touch Surface Moving and tapping finger on surface
Pointing Stick Located in the middle of the Keyboard Notebook
Joystick Use to button and triggers Computer Gaming Device
14. Scanning Devices
1. Flatbed Scanner: Like a copy machine. e.g. advertising professionals
2. Portable Scanner: Handheld device that slide across the image. Student Lawyers.
15. UPC : Universal Product Code.
The Universal Product Code is a standard for
encoding a set of lines and spaces that can
be scanned and interpreted into numbers to
identify a product .
16.
17. Read bar codes or the vertical zebra-striped
marks printed on product.
BAR CODE READERS
19. Used by bank to read unusual numbers on the bottom of
cheeks and deposit slip.
MICR-Magnetic Ink Character Recognition
20. OCR-Optical Character Reader
Process of reading and converting typed
Printed or handwritten characters into machine-encoded
text or something that the computer can manipulate
It is a subset of image recognition and is widely used as a
form of data entry with the input being some sort of
printed document or data record such as bank
statements,
21. OMR-Optical Mark Recognition
Marks sensing, Sense presence or absence of mark,
such as a pencil mark, used to score multiple choice
tests.
41. Print 15 to 17 Pages Per Minute.
Personal Laser Printer
42. Connecting a laser printer to your office network makes
the printer available to employees or colleagues who use
the same network, allowing them to print documents.
Shared Laser Printer
43. Create Maps, architectural and engineering
drawings, Plotters used by graphic artist,
engineers and architecture.
PLOTTERS
48. Know as all in one. Combine the over IP(VoIP)-use the internet
rather than traditional communication line to support voice
communication. To call telephony requires a high-speed internet
connection and special software and Hardware.
Multifunction Devices(MFD)
49. A. Computer to Computer.
Three Approaches are
B. Computer to Traditional telephone.
C. Traditional Telephone to traditional telephone.
50. Is an Input and Output device that connects to
host computer or Server.
TERMINAL
52. Net PC or Net Personal Computer, have only one
internal hard disk and so no expansion slots.
INTELLIGENT TERMINAL
53. Also know as thin client or Network computer.
Do not have hard disk and must rely on a host
computer or server for application and system software.
NETWORK TERMINAL
54. Also known as web Terminal or Web appliance,
Provide access to the internet and display web
pages on standard television.
INTERNET TERMINAL