Computer Science Questions and Answers
Challenge your competence level in computers, computing, algorithms, hardware and software with these Computer science questions and answers.
Challenge your competence level in computers, computing, algorithms, hardware and software with these Computer science questions and answers.
Which of the following does not replicate itself in an infected computer?
spyware
worm
trojan horse
virus
Correct answer is C
trojan horse is a malicious software program that hides inside other programs, trojan horse does not usually spread by themselves
Which of the following can be used to select the entire document ?
Ctrl + K
Ctrl + A
Shift + A
Alt + F5
Correct answer is B
The keyboard shortcut 'Ctrl + A' is used to select the entire document in most word processing software. This command selects all text or other content in the document
The default file extension for PowerPoint version 2007 and newer is ?
.ppxt
.pps
.ppt
.pptx
Correct answer is D
The default file extension for PowerPoint version 2007 and newer is .pptx. This extension stands for PowerPoint Open XML, which is a file format used by PowerPoint 2007 and newer for saving presentations
what is the first computing machine invented ?
slide rule
Pascal calculator
Napier bones
Abacus
Correct answer is D
The Abacus was invented between 2700 and 2300 BC, it is the first computing machine known to mankind
what is the first computing machine invented ?
slide rule
Pascal calculator
Napier bones
Abacus
Correct answer is D
The Abacus was invented between 2700 and 2300 BC, it is the first computing machine known to mankind
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