Computer Fundamental Miscellaneous - Study Mode
[#651] Who developed the first personal computer spreadsheet package called Visicalc?
Correct Answer
(D) Both (B) and (C)
Explanation
Solution: It was 1979 and Dan Bricklin and Bob Frankston wanted to see their calculators come to life. They wanted to be able to change numbers in their calculations and update their final answers. By creating VisiCalc, the first electronic spreadsheet, that's exactly what they did.
[#652] When was the X Window System born?
Correct Answer
(A) 1984
Explanation
Solution: The X Window System (X11 or simply X) is a windowing system for bitmap displays, common on Unix-like operating systems. X originated at the Massachusetts Institute of Technology (MIT) in 1984.
[#653] A double sided magnetic disk pack has six disks. Can you tell how many surfaces of this pack are normally used?
Correct Answer
(A) 10
Explanation
Solution: Extreme surfaces of the disk are more prone to external damage or scratches from outer casing. Due to this, almost all the manufacturers do not use them for recording. Upper layer of first disk and lower layer of last disk is not used, 12 - 2 = 10 surfaces.
[#654] The Santa Clara Valley, California is popularly known as Silicon Valley of America because
Correct Answer
(B) many silicon chip manufacturing firms are located there
Explanation
Solution: Silicon valley got its name from the fact that most companies which started their business from San jose San fransisco were Semiconductor based and was of computer chip Technology and silicon is constituent part of it.
[#655] Which of the following professions has not been affected by personal computers?
Correct Answer
medical
Explanation
Solution: In its more general usage, a personal computer (PC) is a microcomputer designed for use by one person at a time. A personal computer is a general-purpose computer whose size, capabilities and original sale price make it useful for individuals, and is intended to be operated directly by an end-user with no intervening computer operator.