World's first commercial computer Wall Colosis 1500 was invented by a Britian scientist Mr. T.H Flower and design was proposed by Professor Max H.A in 1943.
Today, many types of computers are being introduced in the market and new models have been manufactured. So, according to these different types and models and usages we may divide these types as following.
Now, let us discuss above types of computers separately and briefly one by one.
Micro Computers / Personal Computers:
Micro Computers are also known as Personal Computers. This type of computer was first introduced in 1970. This computer was usually used for business/commercial purpose and in educational institutions. Despite of Micro-computers Note-Book computers and Laptop computers are also available in the market.
These computers are very little in size as well as weight. Famous companies which prepare these types of computers are IBM, Apple, Compac, AS, Gateway & Tandy.
Super Computers:
These type of computers are very much faster and 100% result oriented very quickly. These types of computers are being used by people who want to work fastest with quick response. Super computers are very much faster and comfortable as compared to other common computers. Super computers manufacturers are Cray and Fujitsu.
Digital Computers:
These type of computers operates with ON-OFF system. Digital computers examples are digital watches, digital calculators and the instruments of measurement.
Analog Computers:
These computers works on the basis of Signals. Analog computers determines the change or quantity of different things. Petrol Pump Station, Gas Stations and Speed Meter in cars are some of examples of Analog computers.
Hybrid Computers:
Hybrid computers possesses the qualities of both Analog and Digital computers. Hybrid computers are used for medical / health related tasks such as for measuring patient's blood pressure, temperature etc, we use I.C.U (Intensive Care Unit).
Main Frame Computers:
Main Frame Computer was first introduced in 1950. Actually main frame computer is a big machine placed in a big room and connected with others computers within range of city or area with telephone wires.
Main frame computers operating speed is very fast. This type of computer is usually used in educational institutions, banks, business institutions, air companies, defense and in atomic research centers.
Mini OR Mid-Range Computers:
This type of computer was first introduced in 1960. In first days of Mini Computer it was used for the purpose of scientific and engineering research but later on, it was also used for educational purpose. Following famous companies prepare mini computers.
Laptop Computers:
These type of computers are too smaller in size as compared to others computers and usually size is 9*12*12 and weight approximately 7 pounds. Today, many companies are introducing big screens for laptops like desktop monitor screens. Now, laptop computers contain sound systems, CD-Room and also a huge RAM (Random Access Memory). Laptop computers are very much comfortable for the people who want to took it to home from their offices.
Note Book Computers:
Note book computers are small in size and weight. This type of computers are usually weight is 5 to 7 pounds approximately. Some note book computers are also equipped with sound system and CD-Room, Hard drive and memory. Note Book computers can be taken to here and there very easily therefore, these types of computers are very famous due to their that qualities.
Sub Note Book Computers:
These computers are smaller in the size than laptop as well as note book computers. This computer usually contains 4 to 5 pound weight. It is very much comfortable for the people who wish to use computer while travelling. Sub Note Book computers are equipped with Floppy Drive and there is not any CD-Room in it. Due to their smallest size as compared to others, these are expensive one.
Today, many types of computers are being introduced in the market and new models have been manufactured. So, according to these different types and models and usages we may divide these types as following.
- Micro Computers or Personal Computers
- Super Computers
- Digital Computers
- Analog Computers
- Hybrid Computers
- Main Frame Computers
- Mini or Mid-range Computers
- Laptop Computers
- Note Book Computers
- Sub Note-Book Computers
Now, let us discuss above types of computers separately and briefly one by one.
Micro Computers / Personal Computers:
Micro Computers are also known as Personal Computers. This type of computer was first introduced in 1970. This computer was usually used for business/commercial purpose and in educational institutions. Despite of Micro-computers Note-Book computers and Laptop computers are also available in the market.
These computers are very little in size as well as weight. Famous companies which prepare these types of computers are IBM, Apple, Compac, AS, Gateway & Tandy.
Super Computers:
These type of computers are very much faster and 100% result oriented very quickly. These types of computers are being used by people who want to work fastest with quick response. Super computers are very much faster and comfortable as compared to other common computers. Super computers manufacturers are Cray and Fujitsu.
Digital Computers:
These type of computers operates with ON-OFF system. Digital computers examples are digital watches, digital calculators and the instruments of measurement.
Analog Computers:
These computers works on the basis of Signals. Analog computers determines the change or quantity of different things. Petrol Pump Station, Gas Stations and Speed Meter in cars are some of examples of Analog computers.
Hybrid Computers:
Hybrid computers possesses the qualities of both Analog and Digital computers. Hybrid computers are used for medical / health related tasks such as for measuring patient's blood pressure, temperature etc, we use I.C.U (Intensive Care Unit).
Main Frame Computers:
Main Frame Computer was first introduced in 1950. Actually main frame computer is a big machine placed in a big room and connected with others computers within range of city or area with telephone wires.
Main frame computers operating speed is very fast. This type of computer is usually used in educational institutions, banks, business institutions, air companies, defense and in atomic research centers.
Mini OR Mid-Range Computers:
This type of computer was first introduced in 1960. In first days of Mini Computer it was used for the purpose of scientific and engineering research but later on, it was also used for educational purpose. Following famous companies prepare mini computers.
- DAS
- NCR
- Hewllet Packard
- Data General
- Wang
- IBM
Laptop Computers:
These type of computers are too smaller in size as compared to others computers and usually size is 9*12*12 and weight approximately 7 pounds. Today, many companies are introducing big screens for laptops like desktop monitor screens. Now, laptop computers contain sound systems, CD-Room and also a huge RAM (Random Access Memory). Laptop computers are very much comfortable for the people who want to took it to home from their offices.
Note Book Computers:
Note book computers are small in size and weight. This type of computers are usually weight is 5 to 7 pounds approximately. Some note book computers are also equipped with sound system and CD-Room, Hard drive and memory. Note Book computers can be taken to here and there very easily therefore, these types of computers are very famous due to their that qualities.
Sub Note Book Computers:
These computers are smaller in the size than laptop as well as note book computers. This computer usually contains 4 to 5 pound weight. It is very much comfortable for the people who wish to use computer while travelling. Sub Note Book computers are equipped with Floppy Drive and there is not any CD-Room in it. Due to their smallest size as compared to others, these are expensive one.
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