WorksheetsNSS Ch12 Revision Exercise v2
Total questions: 11
Worksheet time: 17mins
(CE05) Which of the following is not an appropriate description of a colour laser printer?
16 MB memory
12ms response time
1200 x 1000 dpi resolution
1 USB 2.0 port
(CE06) Which of the following characteristics of a scanner affect the quality of a captured image?
(Please choose 2 answers.)
Colour Depth
Resolution
OCR supported
Pages per minute
(CE06) Which of the following I/O devices are commonly used by a cashier in a boutique shop?
(Please choose 2 answers.)
Magnetic strip card reader
Optical character reader
Inkjet printer
Thermal printer
Given the following Visual Display Units (VDU), on which VDU a 64x64 pixel icon will appear larger on the screen?
LCD Monitor A: 1024x768, 17 inches, refresh rate 60Hz
CRT Monitor B: 1280x1024, 17 inches, refresh rate 75Hz
(DSE13) A supermarket uses thermal printers instead of dot-matrix printers to print receipts. What are the major reasons for using thermal printers?
(Please choose 2 answer.)
Less printing noise
Shorter printing time
More durable receipts
(DSE14) A TV unit has the following three ports. High Definition (HD) videos will be output to the TV unit. Which of the following ports should be used?
A. (1) only
B. (2) only
C. (1) and (3) only
D. (2) and (3) only
Choose one most suitable answer.
A
B
C
D
(DSE PP + DSE15) A workstation in the system provides a virtual keyboard on the screen which can be used to enter text. Give one advantage of this design.
(DSE PP + DSE15) A workstation in the system provides a virtual keyboard on the screen which can be used to enter text. Give one disadvantage of this design.
Suggest a common way to connect a keyboard to the workstation other than using a USB port.
Other than using a virtual keyboard, suggest a way to input data without any extra device only a tablet computer.
