Program routine which is used by one or more computer programs is classified as
Answer: A
Correct answer: subroutine
A routine written once and called from more than one place is a subroutine. Its value is precisely that the code exists in one copy however often it is used.
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Variable with a restricted name in only one subroutine program is classified as
Answer: A
Correct answer: local variable
A variable declared inside a subroutine and visible only there is local. Confining it prevents the routine from disturbing anything outside it.
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In COMAL programming language, a WHILE loop must ends with
Answer: D
Correct answer: end while function
A COMAL WHILE loop is closed by ENDWHILE, which marks where the repeated block finishes - the same role that ENDPROC plays for a procedure.
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Programming language which is extension of programming language 'BASIC' is
Answer: B
Correct answer: COMAL
COMAL was built on BASIC, adding the structured constructs of Pascal while keeping BASIC's accessibility.
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When source program is translated it is classified as
Answer: B
Correct answer: object program
The output of a translator is the object program - the machine code or intermediate code produced from the source.
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In Pascal and COMAL programming language, symbol ':=' is used for
Answer: D
Correct answer: assignments
In Pascal and COMAL := assigns a value to a variable, and the plain = is reserved for comparison. Keeping the two symbols apart removes an ambiguity that BASIC and C leave open.
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Main type of functions does not includes
Answer: C
Correct answer: top down procedures
Functions are either built into the language, defined by the user, or supplied by a library - the last two amount to the same category. Top down describes a way of designing a program, not a kind of function.
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Programming language 'BASIC' is used for the
Answer: A
Correct answer: beginners
BASIC was written at Dartmouth in 1964 as a first language for students who were not scientists, which is what its name records: Beginner's All-purpose Symbolic Instruction Code.
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'object program' is also called
Answer: C
Correct answer: machine code
The object program is the translated form, which for a compiler is machine code. The compiler is what produces it, not what it is.
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In high level programming language, instructions used to supply value in an expression are classified as
Answer: B
Correct answer: program function
Values supplied to an expression so that a result can be computed are handled by functions, which take arguments and return a value into the expression.
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