26. A compiler means

A. A person who compiles source programs
B. The same thing as a programmer
C. Keypunch operator
D. A program which translates the source program into object program
E. None of the above

27. A pen-shaped device which can sense light, and is used to point at spots on a video screen.

A. Mouse
B. Light pen
C. Joystick
D. Plotter
E. None of the above

28. A notation used to express clearly on the algorithm is known as

A. Algorithmic language
B. Assembly language
C. Machine language
D. High-level language
E. None of the above

29. Compression of digital data for efficient storage is

A. Buffer
B. CPU
C. Packing
D. Field
E. None of the above

30. An operating system intended for use on microprocessor based systems that support a single user is

A. PC-DOS
B. MS-DOS
C. UNIX
D. CP/M
E. None of the above