Some keys on keyboard have two characters. When we want to get the upper character we should hold () and press the key.
A. Ctrl
B. Shift
C. Alt
D. any of the above
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One KB equals () bytes.
A. 512
B. 1024
C. 1000
D. 2048
When we want to open an item, we can point to the item, and ( ) the mouse.
A. right-click
B. click
C. double-click
D. drag
Which of the following is not a desktop operating system?
A. Microsoft Windows
B. OS X
C. Linux
D. Android
Which of the following is a mobile operating system?
A. Microsoft Windows
B. OS X
C. Linux
D. Android