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 Types Of Digital Computer Micro Computer  Mini Computer  Mainframe  Super Computer Micro Computer Micro Computer can be classified into: Desktop PCs Sits on desks, Rarely moved, Large and Bulky Memory capacity, Graphics capacity and software availability vary from one computer of another used both for business and home applications. Portable PCs Can be moved easily from place to place Weight may varies Small PCs are popular known as laptop Widely used by students, scientist, reporters etc. Advantages Small Size Low Cost Portability Low Computing Power Commonly used for personal application Disadvantages Low Processing Speed Mini Computer Medium Sized Computer Also called the minis For example. IBM36, HP9000 etc. Computing power lies between microcomputer and mainframe computer. Terminals Mini Computer Characteristics Bigger size than PCs Expensive than PCs Multiuser Difficult to use More computing power than PCs Used by medium sized business organizations, colleges, libraries and bank

 Types of Computer Analog Computer Digital Computer Analog Computer Analog Computers handle or process information which is of a physical nature, as for example, temperature, pressure etc. Digital Computer Digital Computers process information which is essentially in a binary or two state form, namely zero and one. When talking about Computers, we mostly refer to the digital type of electronic machines. There are based on the measuring of analog or equivalent physical value.

 What do Computer do? Input, Process, Output and Store data Data and Information  All Computer processing requires data, which is a collection of raw facts, figures and symbols, such as numbers, words, images, video and sound given to the computer during the input phase. Computers manipulate data to create information. Information is data that is organized, meaningful and useful.

 What is a Computer? Computer stands for " Commonly Operated Machine Particularly Used For Trade Education and Research" . It is a very versatile electronic machine man has ever created. Computers have made a great impact on everyday life. Their presence is felt in almost everyway of life be IT home, School, College, Office, Industry, Hospital, Bank, Retail stores, Railways, Research and Design Organizations etc.