Which of the following is both an input device and an output device? ( )
A: monitor
B: scanner
C: hard disk
D: plotter
A: monitor
B: scanner
C: hard disk
D: plotter
C
举一反三
- Among the following devices, both belong to the output device and the<br/>input device ____. A: Hard disk B: Keyboard C: Mouse D: Plotter
- In the following, the input device is （）. A: keyboard B: monitor C: printer D: plotter
- In the following, the input device is （）． A: keyboard B: monitor C: printer D: plotter
- Which<br/>of the following is output device?() A: keyboard B: mouse C: display<br/>screen D: scanner
- Which of the following is an input device? A: Mouse B: Keyboard C: Scanner D: All the above
内容
- 0
（） is an output device displaying the result on paper. A: Printer B: Mouse C: Display D: Disk
- 1
Which of the following is not a type of scanning device? A: Optical scanner B: Bar code reader C: Stylus D: Character and mark recognition
- 2
Memory card in digital camera is one of solid state storage device which is used to store images. Miniature optical disk or miniature hard disk in _____ is used to store videos.
- 3
A touch screen is just an input device，not output device.
- 4
Which of the following will result in an increase in productivity A: 10% decrease in both output and input B: 10% increase in output and 5% increase in input C: 5% increase in output and 10% increase in input D: 10% increase in both output and input