Computer Science Questions and Answers

Encryption deals with the safe transfer of data of information from its source to its destinations, without a third party having access to the information or data being transferred

Windows 2.0 allowed application windows to overlap each other, unlike its predecessor Windows 1.0, which could display only tiled windows. Windows 2.0 also introduced more sophisticated keyboard-shortcuts and the terminology of "Minimize" and "Maximize", as opposed to "Iconize" and "Zoom" in Windows 1.0. It was also the last version of Windows that did not require a hard disk.

With the improved speed, reliability and usability, computers now started becoming a part of daily life for some workers. Desktop icons and use of keyboard shortcuts helped to speed up work.
 

All of the above

Non volatile storage retains data after power is off because, Non volatile storage is a broad collection of technologies and devices that do not require a continuous power supply to retain data or program code persistently on a short or long term basis

External memory doesn't belong to the group because, it is a type of memory that can be detached from the computer unlike the other three options that can't be detected from the computer system because they are inbuilt