Language that is developed for business applications is known as
Answer: B
Correct answer: COBOL
COBOL - Common Business Oriented Language - was designed for business data processing, with file handling, report generation and decimal arithmetic. Pascal, C and C++ are general purpose languages.
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Types of computer language translator are
Answer: D
Correct answer: all of these
All three translate one form of code into another: a compiler converts a whole high level program at once, an interpreter converts and executes it statement by statement, and an assembler converts assembly mnemonics into machine code.
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Programming language 'COMAL' stand for
Answer: A
Correct answer: Common Algorithmic Language
COMAL stands for COMmon ALgorithmic Language. It was devised in Denmark to combine the accessibility of BASIC with the structure of Pascal.
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Which programming language was designed chiefly for artificial intelligence and symbolic processing ?
Answer: C
Correct answer: LISP
LISP, created by John McCarthy in 1958, is built on list processing and treats code and data in the same form, which suits symbolic manipulation. FORTRAN was written for scientific computation and COBOL for business data processing.
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Which file organization is allowed by a direct access storage device?
Answer: D
Correct answer: sequential, indexed and direct
A direct access device can reach any block without reading what comes before it, so it supports direct organisation; and since it can also read blocks in order, it supports sequential and indexed organisation as well. A sequential device such as tape supports only the first of the three.
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One disadvantage of a direct access file is:
Answer: A
Correct answer: the delay in computing the storage address
Direct access files find a record by computing its address from its key, and that computation - hashing, and the handling of collisions when two keys give the same address - takes time on every access. Unused locations and duplicated addresses are consequences of the same scheme but are not what slows it down.
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