Fundametal of Computer in English

Introduction to Computer

The word computer is divered from the word compute, which means calculation. Therefore, In colloquial language it is considered as a calculating device that can do arithmetic and logical opretions with speed, but today its definition has charged because now the use of computer is not limited to calculation, today it is used for music, graphics, Internet is also happning in many other areas. So now it can say that it is an electronic device that accepts data, and after a wide step-by-step processing it changes into information and presents the output results. It accepts stores and manipulates data according to our need.

Types of Computer
There are three types of Computer

1. Analog Computer
2. Digital Computer
3. Hybrid Computer

• Analog Computer =

  Analog Computers are used mostly in Medical Sciences. The very kind of computers work on continuous data value, for e.g. if you have to calculate the pressure or something similar then kind of technology having will be useful.



• Digital Computer =

  Digital Computers are the most commonly used computer on a digital technique which is widely used and preferred nownow-a-days. This kind of computers uses micro processor technology which is quite digital and able to calculatecalculate and execute million of instruction within a second. This also comes under kind of categories as we can see downwords.


Types of Disital computer
There are four types of digital computer
1. Micro Computer
2. Mini Computer
3. Mainframe Computer
4. Super Computer

Micro ComputerComputer=

The processor is very small so that called Micro processor and device is called MicriMicro computercomputer. Micro is single user device example :Desktop,Laptop,Palmtop,notebook,PDA etc.

Mini Computer =

The processor of Mini Computer is small but larger than Micro processor. Mini Computer is multiuser device genrally used in designing company for commercial use.

Mainframe Computer = It has larger processor and multiuser device. Number of users is more than mini computer .This is multiuser and multitasking device mostly used in metrology.

Super Computer = The processor is biggest than other Computer and capacity is highest than other devices. It is Multi user fastest calculating device, generally used in nuclear science for calculation purpose. CRAY- 1is the Super Computer. India's First Super computer is PARAM-10000.

Hybrid Computer =

The kind of computer comes with both characteristics (digital and analog) are called hybrid. This is used there where it needs to calculate both the digital and analog data for e.g. In Hospitals.