791. An algorithm is best described as
A. A computer language
B. A step by step procedure for solving a problem
C. A branch of mathematics
D. All of the above
E. None of the above
792. The process of transferring data intended for a peripheral device into a disk (or intermediate store) so that it can be transferred to peripheral at a more convenient time or in bulk, is known as
A. multiprogramming
B. spooling
C. caching
D. virtual programming
E. None of the above
793. Block caches or buffer caches are used
A. to improve disk performance
B. to handle interrupts
C. to increase the capacity of the main memory
D. to speed up main memory read operation
E. None of the above
794. The action of parsing the source program into the proper syntactic classes is known as
A. syntax analysis
B. lexical analysis
C. interpretation analysis
D. general syntax analysis
E. None of the above
795. Which, of the following is not true about the description of a decision table?
A. A decision table is easy to modify
B. A decision table is directly understood by the computer
C. A decision table is easy to understand
D. All of the above
E. None of the above
796. Trojan-Horse programs
A. are legitimate programs that allow unauthorized access
B. do not usually work
C. are hidden programs that do not show up on the system
D. usually are immediately discovered
E. None of the above
797. When did IBM release the first version of disk operating system DOS version 1.0?
A. 1981
B. 1982
C. 1983
D. 1984
E. None of the above
798. Which of the following is false about disk when compared to main memory?
A. non-volatile
B. longer storage capacity
C. lower price per bit
D. faster
E. None of the above
799. Producer consumer problem can be solved using
A. semaphores
B. event counters
C. monitors
D. all of the above
E. None of the above
800. Most of the microcomputer’s operating systems like Apple DOS, MS DOS and PC DOS etc. are called disk operating systems because
A. they are memory resident
B. they are initially stored on disk
C. they are available on magnetic tapes
D. they are partly in primary memory and partly on disk
E. None of the above