_________________is not used as main memory system.
Answer: A
Correct answer: Magnetic tape
Main memory must be randomly accessible, and tape is a sequential medium: reaching a given record means winding through everything before it. Magnetic core and semiconductor memory were both used as main memory, in the second and third generations respectively.
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In COMAL language programs, procedures are defined between
Answer: D
Correct answer: PROC and ENDPROC statements
A COMAL procedure begins with PROC name and ends with ENDPROC; everything between them is the body. EXEC is how a procedure is called, not how it is defined.
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What is the high speed storage element which is normally present in the ALU of computer called?
Answer: D
Correct answer: Registers
Registers are the small, very fast storage locations inside the processor that hold the operands and results the ALU is working on. Disks are external and far slower, and semiconductor memory is main memory rather than part of the ALU.
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The electrical conducting lines with which different components on the motherboard of a PC processor unit that are linked together is called
Answer: D
Correct answer: Buses
A bus is a set of parallel conducting lines shared by the components on the motherboard - an address bus, a data bus and a control bus. Wires and conductors describe the material rather than the structure, and connectors are the plugs at the ends.
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Programming language that allows structuring of programs and data is
Answer: D
Correct answer: PASCAL
Pascal was written by Wirth to teach structured programming: it provides blocks, procedures and functions for structuring the program, and records, arrays and user-defined types for structuring the data. LOGO and COBOL offer far less of either.
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Programming language used to encourage logical thinking is classified as
Answer: A
Correct answer: LOGO
LOGO was designed by Papert for teaching, and its turtle graphics let a child see the consequence of each instruction immediately, which is what makes it a language for developing logical thinking. COBOL and Pascal were designed for business and for structured programming respectively.
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Which language is the set of rules that tells the computer what operation to perform?
Answer: A
Correct answer: Programming language
A programming language is the set of rules - syntax and semantics - by which instructions are expressed to a computer. A command language issues single commands to an operating system, and a procedural language is one kind of programming language rather than the general term.
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Examples of program routine are
Answer: D
Correct answer: all of the above
A routine may be a piece of a larger program, a set of instructions repeated for convenience, or a short program complete in itself. What defines it is that it is self-contained and can be called, not how big it is.
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The high level language program before ready to be executed must go through various process except
Answer: D
Correct answer: Controlling
A high level program is translated into object code, linked with the libraries it uses, and loaded into memory before it can run. Controlling is not a stage in that sequence, which is why it is the exception.
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The first electronic computer in the world was
Answer: C
Correct answer: ENIAC
ENIAC, completed in 1946, is generally counted the first general-purpose electronic computer. EDVAC and UNIVAC both came after it, and both were designed by the same team.
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