Which of the following devices have a limitation that we can only information to it but cannot erase or modify it.
A. Floppy disk.
B. Hard disk.
C. Tape drive.
D. CDROM.
Computer Science MCQs
Which of the following is not an output device.
A. Scanner.
B. Flat screen.
C. Touchscreen.
D. Printer.
EPROM can be used for
A. erasing the contents of ROM.
B. reconstructing the contents of ROM.
C. erasing and reconstructing the contents of ROM.
D. duplicating ROM.
When a key is pressed on the keyboard, which standard is used for converting the keystroke into the corresponding bits.
A. ANSI.
B. ASCII.
C. EBCDIC.
D. ISO.
An impact printer creates characters by using
A. electrically charged ink.
B. an ink pen.
C. an inked ribbon and print head.
D. electric pulses.
A daisy wheel is a type of.
A. printer.
B. storage Device.
C. pointing Device.
D. scanner.
Magnetic tape is a
A. serial access medium.
B. random access medium.
C. parallel access medium.
D. serial and Random access medium
A laser printer does NOT use
A. A print head.
B. Photoconductive drum.
C. A laser beam.
D. A cartridge.
ROMs are used primarily for.
A. data storage.
B. temporary programme and data storage.
C. they are inexpensive.
D. permanent program and data storage
The EPROM can be erased by the user using
A. red rays.
B. white rays.
C. ultra red rays.
D. ultra violet rays.
