Computers are used for several applications in almost all fields of morden life.diffrent types of application require diffrent type of computers.for instance, for desktop application such as word-processing, you may require a small computer.on other hand, a large company require a large and powerful computer. computer can be classified based on size, application,speed,technology etc.
- one of the most commonly used classifications of computers is based on its size.here the computers are devided into three categories -large mainframe, mini and micro.personal computers (PCs) that you use fall into the micro category. small micro computer that we are used for personal application in homes in the 1980s were called home computers.large companies,banks,airlines...etc.
- normally use large (mainframe computers) fall between the mainframes and macro computers.computer can also classified as analog and digital. your pc is a digital computer.the computers used in officec are generally digitals. digital computer are operate directly on numbers that are expressed as digits. digital computers are more accurate than analog computers. they can be sued data for processing as well as for scientific, engineering and industrial application. on the other hand, analog computers that are normally used in the process industry or in measuring instruments can directly measure physical parameters, such as v,oltage, current pressure,temprature,length,weigh,flow etc. however, nowadays,digital computers are being used for industrial application.
