In line 100 INPUT NUM: PRINT 3.1*NUM*NUM+5" of a BASIC program, ' PRINT 3.1 and 5' are classified as
Answer: A
Correct answer: constants
The numbers 3.1 and 5 written directly into the expression are literal constants: their values are fixed in the program text and cannot change while it runs. NUM, by contrast, is a variable, since the INPUT statement gives it whatever the user types.
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The octal equivalent of 111010 is
Answer: B
Correct answer: 72
Octal digits correspond to groups of three binary digits, so split the number from the right:
\[ 111\,010_2 \;\rightarrow\; 111=7,\quad 010=2 \;\rightarrow\; 72_8 \]
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_____________ is used for development of various games.
Answer: A
Correct answer: C++
C++ combines object-oriented structure with the low-level control and speed a game needs, which is why it has long been the standard language for game engines. FORTRAN and BASIC lack the structure, and Java, though used for some games, does not give the same control over memory and hardware.
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In line "300 INPUT NUM: PRINT 4.2*NUM*NUM+17" of a BASIC program, '300' is
Answer: C
Correct answer: line number
In BASIC every statement begins with a number that fixes its place in the program and gives GOTO and GOSUB something to refer to. That is the line number; it is not a variable and holds no value.
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In line '500 IF NAMEINR ="***" THEN Average= Total Mark/N' of BASIC program, Total Mark and N are considered as
Answer: A
Correct answer: set of integers
Total Mark is a sum of marks and N is a count of students; both are whole numbers, so both are integers. Their quotient, the average, is the value that needs a real type.
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If element in array has two subscripts, then array has
Answer: B
Correct answer: two dimension
The number of subscripts is the number of dimensions: A(3) selects one element of a list, A(3,4) a row and a column of a table. Two subscripts therefore mean a two-dimensional array.
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The machine cycle is usually controlled by
Answer: C
Correct answer: The control unit
The machine cycle - fetch, decode, execute, store - is sequenced by the control unit, which issues the signals for each step in turn. The ALU acts when told to, and memory responds to addresses rather than directing anything.
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For selection of source language the factor which should be considered is
Answer: C
Correct answer: Both 1 and 2
Both matter, and for the same practical reason: a language is no use if no compiler for it exists on the target machine, and no use either if the program cannot exchange data with the other software it must work alongside.
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What does part number, part description and number of parts ordered belong to?
Answer: B
Correct answer: Input
Part number, description and quantity ordered are the data supplied to the system before anything is computed, so they are its input. Output would be the resulting order or invoice, and feedback and control belong to the monitoring of the process.
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What affects the processor speed?
Answer: A
Correct answer: System clock rate
Every instruction takes a whole number of clock cycles, so the rate at which the clock ticks sets the pace at which the processor works. Booting and memory rates affect how quickly particular operations finish but not the processor's own speed.
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