IT &computer MCQ section 1 Practice Questions Answers Test with Solutions & More Shortcuts

Answer: (b)

Both the ALU (Arithmetic Logic Unit) and Control Section have special purpose storage locations called registers.

Answer: (a)

A software bug is an error, flaw, failure, or fault in a computer program or system that causes it to produce an incorrect or unexpected result, or to behave in unintended ways.

Answer: (b)

A sound synthesizer is an electronic instrument capable of producing a wide range of sounds. Synthesizers may either imitate other instruments ("imitative synthesis") or generate new timbres.

They can be played (controlled) via a variety of different input devices (including keyboards, music sequencers and instrument controllers). Synthesizers generate electric signals (waveforms), and can finally be converted to sound through loudspeakers or headphones.

Answer: (b)

Cache memory is a very high-speed semiconductor memory that can speed up the processor or CPU. It acts as a buffer between the CPU and main memory (RAM).

It is used to hold those parts of data and programs which are most frequently used by the CPU. The parts of data and programs are transferred from disk to cache memory by the operating system, from where the CPU can access them.

Answer: (e)

Syntax errors or diagnostic errors are identified by the compiler. These errors occur when a program does not conform to the grammar of a programming language, and the compiler cannot compile the source file.

A syntax error is an error in the syntax of a sequence of characters or tokens that are intended to be written in a particular programming language.

Common syntax errors include missing or misplaced; or }, the missing return type for a procedure, missing or duplicate variable declaration, type mismatch on assignment, type mismatch between actual and formal parameters, etc.

Logic errors occur when a program does not do what the programmer expects it to do.

Since these errors are due to wrong logic in the program, logic errors cannot be identified by the compiler; they are detected only when the program is executed.