Which storage device cannot be erased?

A floppy disk
Magnetic tape storage
A CD-ROM
All of the above
A CD-ROM  A CD-ROM, is a pre-pressed optical compact disc which contains data. The name is an acronym which stands for Compact Disc Read-Only Memory. Computers can read CD-ROMs, but cannot write to CD-ROMs which are not writable or erasable.

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Time during which a job is processed by the computer is
A. Delay time
B. Real time
C. Execution time
D. Down time
Which one of the following is termed a combination input-output device?
A. VDT
B. Keyboard
C. Printer
D. Laser Jet
When you are working on a document on PC, where is the document temporarily stored?
A. RAM
B. ROM
C. CPU
D. Flash Memory
The term gigabyte refers to
A. 1024 bytes
B. 1204 kbytes
C. 1024 megabytes
D. 1024 terabytes
Which of the following is a part of the computer that one can touch and feel?
A. Hardware
B. Software
C. Programs
D. Output
Which of the following bus types are used by the Apple Macintosh computer?
A. ISA
B. NuBus
C. EISA
D. MCA
Compiling creates a(n)
A. program specification
B. algorithm
C. executable program
D. subroutine

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