A. Because its function goes back and forth every time it is pressed
B. Because it cannot be used for entering numbers
C. Because it cannot be used to delete
D. Because it cannot be used to insert

A. RAM
B. Printer
C. Monitor
D. ROM

A. piggybacking
B. cyclic redundancy check
C. fletcher’s checksum
D. none of these

A. radio waves
B. microwaves
C. infrared
D. all of the above

A. Pictures
B. Text
C. Both picture and text
D. Neither picture nor text

A. Dragging
B. Dropg
C. Right clicking
D. Shift clicking

A. special function cards
B. RAM
C. CPU
D. Intel

A. Contains only current data
B. Organised around important subject areas
C. Contains numerous naming conventions and formats
D. Can be updated by end users

A. system units
B. output devices
C. storage components
D. Input devices

A. Gigabyte
B. Terabyte
C. Petabyte
D. Megabyte