Competitive Exams: Computer Terminology O to P

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Online Resources

Internet information available to a computer user

Online Safety

Precautions taken to protect personal information and images from being misused by others.

Operating systems software (OS)

The set of programs that must be on your computer for the computer to boot properly. It controls all the overall activity of a computer and the way other program and your desktop work. Output Central processing unit executes computer instructions. Memory holds data and programs temporarily.

Output Device

The hardware that receives and displays information coming from the computer.

Page Setup

The term in reference to the way a document is formatted to print


A code for the security protection to allow access to a computer or programs.


To insert the last information to be cut or copied into a document; can be used to move information in or between documents

PDA (Personal digital assistant)

Classified by size, the smallest classification of computers. It is a handheld computer. Usually performing on one or two specific functions.


The default page setup that prints the document vertically (See landscape).


Graphics Provides the tools for creating graphics that represent data in a visual, easily understood format.


To create a paper copy (or hard copy) of the information on the computer screen.


A hardware device used to make a copy on paper (output device).


Output devices make processed data available to the user.

Public Domain

Software written and then donated to the public. Anyone can use and copy public domain software free of charge, but it is not always the same quality as commercial software