Choose the appropriate answer. What devices … you use?

578 Answer the question. What are input devices?
A keyboard, a mouse, a microphone, a scanner, a touchpad, a touchscreen.
A printer, a monitor, headphones, earphones, speakers.
A keyboard, a printer, a camera, earphones, a mouse, speakers
A projector, a camera, a keyboard, speakers, a microphone, a mouse.


579 Answer the question. What are output devices?
A printer, a monitor, headphones, earphones, speakers.
A keyboard, a mouse, a microphone, a scanner, a touchpad, a touchscreen.
A keyboard, a printer, a camera, earphones, a mouse, speakers
A projector, a camera, a keyboard, speakers, a microphone, a mouse.


580 What does “EXPENSIVE” mean?
costing a lot of money
effectiveness
organizing, storing, retrieving data
processing the data


581 What does “POWERFUL” mean?
having great strength
the study of a military processes
predict or estimate a future event
processing the data


582 What does “EFFICIENCY” mean?
effectiveness
costing a lot of money
organizing, storing, retrieving data
processing the data


583 What does “STORING CAPACITY” mean?
how much disk space the device provides
the study of a military processes
weapons considered collectively
the system organized to assure the safe and efficient movement of vehicles


584 What does “FORECAST” mean?
predict or estimate a future event
having great strength
the study of a military processes
weapons considered collectively


585 What does “DEFENCE SYSTEM” mean?
weapons considered collectively
the study of a military processes
predict or estimate a future event
processing the data


586 What does “DEFENCE SYSTEM” mean?
the study of a military processes
weapons considered collectively
predict or estimate a future event
processing the data