Statement which gives value to a variable is called
Answer: A
Correct answer: assignment
A statement that gives a value to a variable is an assignment. The name does not change with the type of the value, which is why the three qualified options are not terms in use.
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Function which is placed between FOR statements and other repeated statements is classified as
Answer: B
Correct answer: DO function
In a FOR loop the statements to be repeated are introduced by DO and run once for each value of the loop variable. GO and WHILE belong to other constructions.
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In statement "After last mark enter -1" in COMAL programming language, rogue value is
Answer: A
Correct answer: -1
A rogue value is a value outside the range of the real data, used to signal the end of input. Marks cannot be negative, so -1 can never be mistaken for a mark, which is precisely what makes it a safe terminator.
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Special character symbol '/' is used to indicate
Answer: C
Correct answer: directive
A directive is an instruction to the translator rather than to the machine, and a special symbol marks it as such so it is not read as ordinary code. The other three words are not terms used in programming.
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Loop which does not executed at all if it is tested at beginning is classified as
Answer: B
Correct answer: WHILE loop
A WHILE loop tests its condition before entering the body, so if the condition is false at the outset the body never runs at all. A REPEAT loop tests at the end and therefore always runs at least once.
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Translation of assembly language into machine code is a task of
Answer: C
Correct answer: assembler
Translating assembly mnemonics into the binary codes the processor executes is the assembler's whole function. The programmer writes the assembly; the assembler converts it.
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Type of subroutines which are available to users of computer as default part of software is classified as
Answer: C
Correct answer: library subroutine
Routines supplied with the language or the system, ready for any program to call - square root, string comparison, sorting - are held in a library. A local subroutine is written for one program only.
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In programming language, 'identifier' can be
Answer: D
Correct answer: all of the above
An identifier is simply a name a programmer gives to something in the program, and arrays, variables and named constants all need names. What distinguishes an identifier from a keyword is that the programmer chooses it.
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Rogue value in statement "140 PRINT "For each one type in name. Type '***,0,0' to finish" is
Answer: A
Correct answer: asterisk
The three asterisks are the value typed to say there are no more names to enter - a value chosen because no real name could look like it. The zeros that follow are the marks entered alongside it and are ignored.
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A compiler is used when data is to be processed in
Answer: A
Correct answer: batches
A compiler translates the whole program first and then it is run, which suits a job submitted with all its data and left to complete. Interactive working, where each statement is to take effect at once, calls for an interpreter instead.
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