Uploaded on Nov 23, 2022
PPT on basics of computer
Basics of Computer
BASICS OF COMPUTER INTRODUCTION Computer is a device that transforms data into meaningful information. It processes the input according to the set of instructions provided to it by the user and gives the desired output quickly. Source: www.geeksforgeeks.org FUNCTIONS • Accept data • Store data • Process data as desired • Retrieve the stored data as and when required • Print the result in desired format Source: www.geeksforgeeks.org DIGITAL COMPUTERS These are the modern computers which are capable of processing information in discrete form. In digital technology data which can be in the form of letters, symbols or numbers is represented in binary form i.e. 0s and 1s. Source: www.geeksforgeeks.org ANALOG COMPUTERS These computers are used to process data generated by ongoing physical processes. A thermometer is an example of an analog computer since it measures the change in mercury level continuously. Source: www.geeksforgeeks.org HYBRID COMPUTERS These use both analog and digital technology. It has the speed of analog computer and the accuracy of a digital computer. It may accept digital or analog signals but an extensive conversion of data from digital to analog and analog to digital has to be done. Source: www.geeksforgeeks.org MICRO COMPUTERS These are also known as Personal Computers. These type of digital computer uses a microprocessor (a CPU on a single chip) and include both desktops and laptops. Source: www.geeksforgeeks.org MINI COMPUTERS These computers can support multiple users working simultaneously on the same machine. These are mainly used in an organization where computers installed in various departments are interconnected. Source: www.geeksforgeeks.org MAIN FRAMES These computers are large and very powerful computers with very high memory capacity. These can process huge databases such as census at extremely fast rate. They are suitable for big organizations, banks, industries etc. and can support hundreds of users simultaneously on the network. Source: www.geeksforgeeks.org SUPER COMPUTERS These are fastest and very expensive computers. They can execute billions of instructions per second. These are multiprocessor, parallel systems suitable for specialized complex scientific applications involving huge amounts of mathematical applications such as weather forecasting. Source: www.geeksforgeeks.org THANK YOU
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