System software  - is a type of computer program that is designed to run a computer's hardware and application programs. , Application software  - is a computer software package that performs a specific function directly for an end user or, in some cases, for another application., Keyboard  - the set of keys on a computer or typewriter that you press in order to make it work, Computer Ergonomics - is the scientific discipline concerned with the understanding of interactions among humans and other elements of a system, Computer fundamentals - is specifically designed to be used at the beginner level. It covers all the basic hardware and software concepts in computers and its peripherals in a very lucid manner., Windows XP - is a line of operating systems developed by Microsoft Corporation for use on general-purpose computer systems, CPU - A central processing unit, also called a central processor, main processor or just processor, is the electronic circuitry that executes instructions comprising a computer program., Information - is stimuli that has meaning in some context for its receiver. , Personal computer - is a microcomputer designed for use by one person at a time., Data - is any sequence of one or more symbols; datum is a single symbol of data. Data requires interpretation to become information. ,

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