Computer Fundamental Miscellaneous - Study Mode

[#671] In which addressing mode, the effective address of the operand is generated by adding a constant value to the contents of a register?
Correct Answer

(D) Index mode

Explanation

Solution: The address of the operand is obtained by adding to the contents of the general register (index register) a constant value. Index mode is used to access an array whose elements are in successive memory locations.

[#672] The term gigabyte refers to
Correct Answer

(C) 1024 megabytes

Explanation

Solution: A Gigabyte is 1,024 Megabytes or 1,048,576 Kilobytes or 1,073,741,824 bytes. GB is often used for indicating a size of memory or specifying a size of computer RAM, movie and so on.

[#673] The CPU chip used in a computer is partially made out of
Correct Answer

(A) silica

Explanation

Solution: A microchip is a set of electronic circuits on a small flat piece of silicon. On the chip, transistors act as miniature electrical switches that can turn a current on or off.

[#674] Which of the following best describes a computer-based information system?
Correct Answer

(A) A system in which a computer is used to turn data into information

Explanation

Solution: Information system, an integrated set of components for collecting, storing, and processing data and for providing information, knowledge, and digital products.

[#675] Accessing records from a file directly without searching from the beginning of the file is
Correct Answer

(C) Direct access

Explanation

Solution: Accessing records from a file directly without searching from the beginning of the file is Direct access. “Direct Access provides users transparent access to internal network resources whenever they are connected to the Internet.”