CS001 : Computer Proficiency License Handouts
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CS001: Computer Proficiency License
Course Category: Computer Science/Information Technology
Computer Proficiency License
CPL represents the Computer Proficiency License, also known as the VU-CPL. It is a computer-based training course offered to all who are interested in learning how to use computer software, after learning this course you will be comfortable and confident in computer use.
CPL Training Center
The website is designed for this study and has its own training ground. The homepage contains smart links for six modules. You can browse these modules and subtitles using mouse click.
What is a computer?
A computer is an electronic device that takes data, instructions and information as input and produces the output (information) after processing it. It is a machine that processes thousands of directions in less than a second and produces output as instructed or programmed.
Basic computer terms
Anything that goes into a computer is called input. For example, text, clear sounds, etc. In everyday life an example of an input is a voting slip in a ballot box. CS001 HANDOUTS
An input device is any peripheral (a piece of computer hardware) used to deliver data and instructions to a computer, for example a keyboard and a microphone. An example of everyday life is the hand used to insert a voting slip into a ballot box. So the hand is a input device for the ballot box.
Anything that comes out of a computer is called an output. For example the audio of a video playing on a computer is out. CS001 HANDOUTS
An output device is a hardware used to detect output on a computer. For example headphones are an output device and are used to listen to audio on a computer. CS001 HANDOUTS
The computer is provided with data and instructions as embedded, which are processed to create output in the form of information. Data is a raw form of symbols, numbers, pictures, etc., while information is a structured, meaningful and useful form of data. For example, some data (student enrollment number, name, total marks, marks obtained etc.) from the internal test are entered. The computer processes data, and creates a report of students passing and failing. This report is very organized and useful to us, and information is just data.
Computer hardware refers to computer hardware. Examples of hardware on a computer keyboard, monitor, mouse and processing unit. Unlike software, computer software is a virtual business, whereas software is not a reality. Computer hardware and software are connected, without software; computer hardware will not work. CS001 HANDOUTS
The term software refers to a program or set of instructions used by a computer to perform computer functions. Software can also be defined as a set of processes, rules and symbolic languages that guide hardware performance. Software is capable of performing certain functions, as opposed to hardware that performs only mechanical functions for which they are designed. We can think or write instructions, but we cannot touch them.
Mainframes are computers where all processing is done in the middle, and user terminals are called “mute terminals” as they include only output (and not processing). The main frames of computers are mainly used by large organizations in critical systems, usually the processing of bulk data such as censuses. Examples: banks and airlines.
PC is an acronym for Your Computer, also known as Microcomputer. Its visual features and low cost are attractive and useful for its users. Throughout the 1970s and 1980s, home computers were developed for home use, offering more personalized production, programming and games, while larger and more expensive systems (though less expensive compared to small computers and mainframes) were intended for office and small businesses.