Types of Computers:
There are different types of computer available in the market used in various organizations as per requirement and demand. SOme of the types are:-
- Micro Computer
- Mini Computer
- Main Frame Computer
- Super Computer
In micro computer, CPU consists of a microprocessor (IC). It consists of system unit, input device, output device, secondary storage and communication.
Its processing speed is near about 1 lakh process per second. Some example of micro computers are: Desktop/PC, Laptop, Notebook, Tablets, Smartphone, Net book (Ipad & Chromebook), PDA (Personal Digital Assistance).
These computers are used in homes, business, entertainment, medicine etc.
PDA(Personal Digital Assistance) is that computer which is small in size with screen and keyboard facility used in 90’s to 20’s. PDA also known as Palm top or Palm Computer.
Check out some Personal Computers:
- Lenovo ThinkCenter 19 Inch All in One Desktop Set ( Intel i5 4th Gen/ 8 GB/ 1 TB HDD /19″ HD Monitor+Keyboard+Mouse+ HD Webcam+Mic+Speakers+Wifi)
- ASUS Vivo AiO V222, 21.5-inch (54.61 cms) FHD, Dual Core Intel Celeron J4005, All-in-One Desktop
This computer works on multiuser application where 100 to 150 users work simultaneously. Mini Computer can be converted into super mini computer by using the 80836 super chips.
It is used in Industries, Researches (High Storage and Processing). Some examples: IBM 17 DEC, PDP-11, HP-9000 etc.
Main Frame Computer:
It is also a multi user system where 1000 of users work simultaneously. It has a great processing speed and data storage capacity.
It is used as a server computer. It is used in business, scientific research etc. Some of the examples are: IBM 370, UNIVAC 1110 etc.
Multics is a main frame time sharing operating system developed by Bell Laboratories.
This computer is the most powerful, fastest, biggest and most expensive computer.
It is used for nuclear energy research, weather forecasting, scientific research etc.
It is a multi user and parallel processing computer where multiple processes work at the same time.
Some Important related to Types of Computer:
First Super computer of the world – CRAY-1 (1960) by Seymous Cray an American Engineer. Seymous Cray is also known as father of super computer.
First Super computer of India – PARAM by C-DAC in 1991.
India’s Fastest Super Computer – SAGA-220(Indian Space Research Organization) whose processing in 220 teraflop.
Super Computer Processing speed is measured in FLOPS (Floating Point Operations Per Second)
World’s Fastest Super Computer – Japnese Fugaku
Top 5 Super Computers
Sunway Taibu Light
Tianhe – 2 (TH-2)
Types of Computer On Purpose Basis:
- Special Purpose Computer
- General Purpose Computer
Special Purpose Computers:
These are designed for specific type of problem. Example: Automatic Aircraft Landing, Traffic Control System, ATM (Automatic Teller Machine) etc.
General Purpose Computers:
These are used for variety of problems where programs can be changed according to problem. Example: Accounting, Forecasting etc.
Micro Computer, Mini Computer, Mobile, Laptop, Digital Clock because all these work on binary system.
Voltmeter, Thermometer, Barometer, speedometer where data represented in physical form.
These are mixture of digital and analog computers. Takes input and output in analog form and do processing in digital form.
Example Medical Machines like ECG (Electrocardiography) , Dialysis machines etc.
Basic Applications of Computer
A computer is a general purpose tool, which can do a variety of jobs. You can use computer for different applications by changing various kind of software packages.
- Generation of Computers – Hardware Evolution of Computers
- History of Computers – Different stages of Computer Development