Computer Fundamental Miscellaneous - Study Mode

[#861] How many addresses are required for 25 × 40 video RAM?
Correct Answer

(C) 1000

Explanation

Solution: 1000 addresses are required for 25 × 40 video RAM. VRAM (video RAM) is a reference to any type of random access memory (RAM) used to store image data for a computer display. All types of VRAM are special arrangements of dynamic RAM (DRAM).

[#862] Which of the following isn't a type of computer facility?
Correct Answer

(C) de-distributed

Explanation

Solution: Distributed computing is a model in which components of a software system are shared among multiple computers. Even though the components are spread out across multiple computers, they are run as one system. This is done in order to improve efficiency and performance.

[#863] Which protocol has been standardised by the International Standards Organisation.
Correct Answer

(B) ISO

Explanation

Solution: ISO : The International Organization for Standardization is an international standard-setting body composed of representatives from various national standards organizations. Founded on 23 February 1947, the organization promotes worldwide proprietary, industrial and commercial standards.

[#864] Which of the following is the largest and most powerful computer manufacture in the world
Correct Answer

(A) IBM

Explanation

Solution: International Business Machines Corporation (IBM) is an American multinational information technology company headquartered in Armonk, New York, United States, with operations in over 170 countries. The company began in 1911 as the Computing-Tabulating-Recording Company (CTR) and was renamed "International Business Machines" in 1924.

[#865] Which 8-bit chip was used in many of Tandy's TRS-80 computers?
Correct Answer

(D) Z-80

Explanation

Solution: The new Zilog Z80 processor (rather than the more common Intel 8080), 4 KB DRAM standard memory (when many 8-bit computers shipped with only 1 KB RAM), small size and desk footprint, floating-point BASIC programming language, standard 64-character/line video monitor.