Computer Fundamental Miscellaneous - Study Mode

[#1056] Any method for controlling access to or use of memory is known as
Correct Answer

(B) Memory protection

Explanation

Solution: Memory protection is a way to control memory access rights on a computer and is a part of most modern instruction set architectures and operating systems. The main purpose of memory protection is to prevent a process from accessing memory that has not been allocated to it.

[#1057] If, in a computer, 16 bits are used to specify addresses in a RAM, the number of addresses will be
Correct Answer

(D) Any of the above

Explanation

Solution: A 16-bit integer can store 216 (or 65,536) distinct values. In an unsigned representation, these values are the integers between 0 and 65,535; using two's complement, possible values range from −32,768 to 32,767. Hence, a processor with 16-bit memory addresses can directly access 64 KB of byte-addressable memory.

[#1058] What is the storage capacity of a Hollerith card which is organized into nibbles?
Correct Answer

(D) 240

Explanation

Solution: 240 is the storage capacity of a Hollerith card which is organized into nibbles. A punched card or punch card is a piece of stiff paper that can be used to contain digital data represented by the presence or absence of holes in predefined positions. Digital data can be used for data processing applications or, in earlier examples, used to directly control automated machinery.

[#1059] A type of instruction that can produce several lines of machine language code is a
Correct Answer

(C) Macro

Explanation

Solution: A type of instruction that can produce several lines of machine language code is a Macro. In Excel, macro code is a programming code which is written in VBA (Visual Basic for Applications) language. The idea behind using a macro code is to automate an action which you perform manually in Excel, otherwise.

[#1060] A common use of computer in office is for
Correct Answer

(B) Word processing

Explanation

Solution: A common use of computer in office is for Word processing. Creating, editing, saving and printing documents. Copying, pasting, moving and deleting text within a document. Formatting text, such as font type, bolding, underlining or italicizing.