INPUT 1
What is input?
Input is data or instructions entered into the computer from a user or the environment.
Input devices are also ______ devices.
Peripheral
_____, Processing, Output, _______
Input, Storage
True or false
Output Devices are peripheral devices.
True
What is Output?
Output can be defined as the hard or soft copy response given to the user by the computer.
What is an input device?
Input devices are devices or hardware components that allow the user to enter data or instructions into the computer.
What would I need to talk over the internet and my friends to see me?
A webcam
Three types of monitors
LCD
What are 2 types of output devices? Not Examples.
Audible and Visual
What is an Output Device?
An output device are devices that translate information processed by the computer into a form that the user can understand.
State 2 input devices that capture data directly from source documents and state what they do with an example
Optical Mark reader ( OMR), Optical Character reader (OCR) Magnetic ink card reader (MICR), magnetic stripe reader (MSR), Barcode reader (BCR), QR scanner,
This device picks up or detects the position of marks on paper. This is used when marking multiple choice paper.
It reads printed information into a computer, like scanned in text.
Detects printed information with a special ink like choques.
Scans information in magnetic strips. This is used on debit or credit cards for example.
This reads the code number of an item from a pattern of bars placed on it. Used in supermarkets to know the price of an item when cashing.
This is used to read information from a QR code (Quick Response Code) placed on an item which is a type of matrix barcode and machine readable optical label.
What are 4 types of input devices? Not Examples.
Text, Pointing, Graphical, Audible, Source and Specialized input devices.
Whats the difference between input and output
Input is information being entered into the computer while output is information being received from the computer to the user.
State two printers
Laser, Dot matrix , Inkjet, etc
True or False
A dot matrix printer is never a pheripheral device
False
What is an example of text input data?
State how it is used for and its features .
- A keyboard is an input device that has buttons called keys the user presses to enter instructions or information into a computer. A keyboard contains letters, numbers, punctuation marks, etc.
Concept Keyboard is a device that has a grid of buttons or keys with pictures or items instead. Commonly used in fast food restaurants.
Numeric Keyboard is a keyboard that has numbers or Numeric operations on the keys used on ATMs, calculators,etc. The layout is either the 7, 8 and 9 keys two rows above the 1,2 and 3 keys or vice versa.
State the device used in supermarkets for prices and state the device that reads the ink on your bank card
Bar code Reader and Magnetic ink card reader
A small symbol on the screen whose location and shape change as a user moves a pointer device
A Pointer
The number of horizontal and vertical pixels in a display
Resolution
An output device that visually conveys text, graphics and video information
A display device
State 2 advantages and 1 disadvantage of any text input data.
Advantages1)Common for entering text
2) Can enter data quickly especially if skilled in typing.
3) Little training to use
Disadvantages
1) Errors in transcriptions and mistakes when typing are common
2) Not suitable for creating diagrams
3) Can lead to Repetitive Strain injury if used excessively.
4) If user can’t touch type can be time consuming.
State two types of scanners and what how they operate
Flatbed Scanner
This is used in a similar way to a photocopy machine as the material is placed on the flat surface of the scanner to capture the information.
Sheet fed Scanner
Information is fed through rollers.
Hand-held Scanner
It is dragged over to read and copy the information.
In what kind of input allows users to guide on-screen elements using air gestures
Motion input or gesture recognition
Name four types of output
Text, graphics, audio and video
Name three types of printers
Inkjet, laser, dot matrix , 3-d printers, thermal printers, all-in-one printers, mobile printers, label printers, plotters