Peripherals Flashcards
What are Peripheral Devices?
Devices that are connected to the computer externally, including input, output and external storage devices
What are input devices?
hardware components which can be used to enter/pass data into the computer system
What are keyboards, mouse and webcams?
Input devices
Advantages of Microphone
1) Relatively Cheap
2) People can speak faster than they type, so it is cheaper than a keyboard
Disadvantages of Microphone
1)Can have have limited battery life
2) Background noise can interfere with spoken words
Explain Mouse
1) A mouse has finger operated buttons
2)When these buttons are clicked they perform an action
3) Can also control the movement of cursor on the computer
Advantage of a Mouse
1) Easy to use
2)Can replace complex keyboard commands
3) Highly Accurate
Disadvantage of a Mouse
1) Can only be used in a flat and smooth surface
2) can easily be broken
Explain Graphic DIgitser
Consists of a flat surface where you can use a pen to write or draw with
As you draw on the surface, the image will appear on the screen
Used by architects
Advantages of a Graphic Digitizer
1) Enables the user to draw naturally
2) The stylus pen can be used as the same way as a pen
Disadvantages of a Graphic Digitizer
1) Much more expensive than a mouse
Explain Touch Screen
1) Works by using your finger to touch the screen
2) the touching is detected and is translated into instructions
Advantages of a Touch Screen
1) Easy to use as you don’t need excellent ICT skills to operate
2) Cheaper as you don’t need to purchase other peripherals such as mouse or keyboard
Disadvantages of a Touch Screen
1)Not suitable for inputting large amount of data
2)Can easily become dirty
What are output devices?
Devices that are used to view output
