IT &computer MCQ section 1 MCQ Questions & Answers Detailed Explanation

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.

Answer: (d)

The kilobyte is a multiple of the unit byte for digital information. It refers to either 1024 (210) bytes or 1000 (103 ) bytes, dependent upon context, in the fields of computer science and information technology.

Answer: (c)

The Compact Disc, or CD for short, is an optical disc used to store digital data. It was originally developed to store and playback sound recordings only, but the format was later adapted for the storage of data (CD-ROM).

Standard CDs have a diameter of 120 millimetres (4.7 in) and can hold up to 80 minutes of uncompressed audio or 700 MB (700 × 106 bytes) of data.

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: (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)

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