TYPES OF COMPUTER

Type of computer

Digital computer Analog computer Hybrid Computer

Micro ComputerMain frame Computer

Super Computer

Home PC

Mini Computer

Analog computer

Analog computer measures and answer the questions by the method of “HOW MUCH”. The input data is not a number infect a physical quantity like tem, pressure, speed, velocity.

Signals are continuous of (0 to 10 V) Accuracy 1% Approximately High speed Output is continuous Time is wasted in transmission time

Analog computer

Digital Computers

Digital computer counts and answer the questions by the method of “HOW Many”. The input data is represented by a number. These are used for the logical and arithmetic operations.

Signals are two level of (0 V or 5 V) Accuracy unlimited low speed sequential as well as parallel

processing Output is continuous but obtain when

computation is completed.

Micro Computer

Micro computer are the smallest computer system. There size range from calculator to desktop size. Its CPU is microprocessor. It also known as Grand child Computer.

Application : - personal computer, Multi user system, offices.

Mini Computer

These are also small general purpose system. They are generally more powerful and most useful as compared to micro computer. Mini computer are also known as mid range computer or Child computer.

Application :- Departmental systems, Network Servers, work group system.

Mini computer

Main Frame Computer

Mainframe computers are those computers that offer faster processing and grater storage area. The word “main frame” comes from the metal frames. It is also known as Father computer.

Application – Host computer, Central data base server.

Super Computer

Super computer are those computer which are designed for scientific job like whether forecasting and artificial intelligence etc. They are fastest and expensive. A super computer contains a number of CPU which operate in parallel to make it faster. It also known as grand father computer.

Application – whether forecasting, weapons research and development.

Super computer

Hybrid Computer

The combination of features of analog and digital computer is called hybrid computer. The main example are central national defense and passenger flight radar system. They are also used to control robots.

Classification of Digital computer Desktop Workstation Notebook Tablet PC Handheld computer Smart Phone

workstation

Tablet PC

Handheld PC(PDA)

Smart phone

Types of Computers : Types of Computers Analog Computers: The

analog computer is almost an extinct type of computer these days. It is different from a digital computer in respect that it can perform numerous mathematical operations simultaneously. It is also unique in terms of operation as it utilizes continuous variables for the purpose of mathematical computation. It utilizes mechanical, hydraulic, or electrical energy or operation

Hybrid computers: : Hybrid computers: These types of computers

are, as the name suggests, a combination of both Analog and Digital computers. The Digital computers which work on the principle of binary digit system of “0” and “1” can give very precise results. But the problem is that they are too slow and incapable of large scale mathematical operation. In the hybrid types of computers the Digital counterparts convert the analog signals to perform Robotics and Process control

Apart from this, computers are also categorized on the basis of physical structures and the purpose of their use. Based on Capacity, speed and reliability they can be divided into three categories of computers:1. The Mainframe Computer – These are computers used by large organizations like meteorological surveys and statistical institutes for performing bulk mathematical computations. They are core computers which are used for desktop functions of over one hundred people simultaneously. 2. The Microcomputer – These are the most frequently used computers better known by the name of “Personal computers”. This is the type of computer meant for public use. Other than Desktop Computer the choice ranges as follows: Personal Digital Computer Tablet PC Towers Work Stations Laptops Hand Held Computer 3. The Mini computer – Mini computers like the mainframe computers are used by business organization. The difference being that it can support the simultaneous working of up to 100 users and is usually maintained in business organizations for the maintenance of accounts and finances.