INFORMATION COMMUNICATION TECHNOLOGY SHS 1 Term 1~ Week 11 Specific Objective ~ 2.1.3 Specific Objectives ~ 3.1.3
Input / Output devices and their functions The use of the numeric keypad
REVIEW THE INFORMATION PROCESSING CYCLE
INFORMATION PROCESSING CYCLE
INPUTS AND OUTPUTS
WHAT ARE . . .
Receiving data (Input devices)
INPUTS ALLOW LIVEWARE / USERS TO . . .
Interact with the computer.
Issue commands and provide information.
Directs the machine on what to do and how to do it.
INPUT DEVICES ~ PARTIAL LIST
Electronic Scratch Pad
The 'Mouse' is a very popular way of controlling the screen cursor. It also makes it very easy to re-size, close and open windows. It is used for generally controlling software through the use of on-screen 'menus'.
WAYS TO USE THE MOUSE
The Types of Clicks:
Single Left Click ~ Selection
Double Left Click ~ Activation
Click and Drag ~ Moving
Single Right Click ~ Task Related
A mouse fits naturally within the palm of your hand. As you slide your arm back and forth along the desk, the mouse will detect this movement and input.
Used to type data or instructions.
Made up of figures, letters, and symbols.
Divided in to areas based on function.
These keys include the same letter, number, punctuation, and symbol keys found on a traditional typewriter.
A fast and efficient way for entering numbers quickly.
The keys are grouped together in a block like a calculator.
An optical device which is used to input text or graphics into a computer.
It uses a beam of light to transfer text or an image into the computer.
display result (information)
OUTPUTS ALLOW HARDWARE AND SOFTWARE TO . . .
Present information to its user.
R eturn the processed data from a previously inputed task.
Display the results or give feedback to the operator.
OUTPUT DEVICES ~ PARTIAL LIST
A Monitor also know as the computer's display, is a piece of electrical equipment which displays the work generated by you using a computer without producing a permanent record.
A computer display device is usually either a CRT or some form of flat panel.
An LCD projector is a type of video projector for displaying video, images or your work done on a computer onto a screen or other flat surface.
It is the modern equivalent of the overhead projector.
A printer, produces a hard copy (permanent human-readable text and/or graphics) of documents.
Printers are designed for low-volume output.
Name 2 Input devices and their describe their uses.
Name 2 Output devices and their describe their uses.
What is the difference between and input and output device.