Computer Fundamental Miscellaneous - Study Mode

[#1026] Which of the following translate back from machine code something resembling the source language
Correct Answer

(D) Decompiler

Explanation

Solution: A decompiler is a computer program that takes an executable file as input, and attempts to create a high level source file which can be recompiled successfully.

[#1027] Who developed a mechanical device in the 17 th century that could add, subtract, multiply, divide and find square roots?
Correct Answer

(D) Leibnitz

Explanation

Solution: Gottfried Wilhelm Leibniz (b. 1646, d. 1716) was a German philosopher, mathematician, and logician who are probably most well known for having invented the differential and integral calculus (independently of Sir Isaac Newton).

[#1028] Serial access memories are useful in applications where
Correct Answer

(D) data naturally needs to flow in and out in serial form

Explanation

Solution: 1) Serial access memories are useful in applications where data naturally needs to flow in and out in serial form. 2) Serial access is where data records are stored one after the other with no regard to the order.

[#1029] A six - digit card field used for postal ZIP codes is defined as
Correct Answer

(C) A numeric field

Explanation

Solution: A six - digit card field used for postal ZIP codes is defined as a numeric field. The two codes are essentially the same in their purpose, but the term Zip code is mainly used in the USA; Postal Code is commonly used in other countries.

[#1030] The octal equivalent of the number 11010.1011 is
Correct Answer

(A) 32.54

Explanation

Solution: The octal equivalent of the number 11010.1011 is 32.54 Octal. Because, 11010 ⇒ 011 010 = 32 (in octal) 1011 ⇒ 101 100 = 54 (in Octal) So, 11010.1011 = 32.54 (in Octal)