Computer Science Questions and Answers

Warm booting refers to the process of restarting a computer system which is already on. This can be done by pressing the Ctrl + Alt + Del keys simultaneously. This is a common shortcut for warm booting in many operating systems

Minimize is an action performed in the GUI operating systems to hide a window but keep the program running in the background

On June 14, 1951, the U.S. Census bureau dedicates UNIVAC(Universal Automatic Computer), the first commercially produced electronic digital computer the US

Fax machine is a device that sends and receives printed pages or images over telephone lines by digitizing the material with an internal optical scanner and transmitting the information as electronic signals

The last cycle of data processing where data and information are preserved for future use is called 'storage'. This is the phase where data or information is saved either temporarily or permanently for future use. The 'output' is the result of data processing but not necessarily preserved for future use. 'Processing' is the action of manipulating data. 'Record' is a piece of stored information

trojan horse is a malicious software program that hides inside other programs, trojan horse does not usually spread by themselves

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 .pptx. This extension stands for PowerPoint Open XML, which is a file format used by PowerPoint 2007 and newer for saving presentations

The Abacus was invented between 2700 and 2300 BC, it is the first computing machine known to mankind

The Abacus was invented between 2700 and 2300 BC, it is the first computing machine known to mankind