Types of Computers and their Classifications. Learn Computer with Praveena

 Computers are classified into three types:

1. Analog
2. Digital
3. Hybrid

          Analog Computers

                       

Analog Computers is a computing device that works on continuous range of values. It gives approximate results and it deals with physical variables such as voltage, pressure, temperature , speed etc..

      Digital Computers
                             

A digital number system uses binary number system (0,1) , it is designed using digital circuits. It is faster and give accurate results.

     Hybrid Computers

A Hybrid Computing system is a combination of analog and digital computers.

Classification of computers

The digital computers are classified into four types

                             Digital Computers

                                                      

                                          

•  Super  computers                   
•  Mainframe computers                                     
•  Mini Computers                       
•  Micro Computers

Super Computers

            Super Computers process billions of instructions per second. The most expensive ones are known as Super Computers.

Examples......Weather forecasting, special effects for movies,stock analysis etc...

Mainframe Computers

                    Mainframe computers are capable of processing data at very high speeds and it process hundreds of million instructions per second. These systems are so expensive. They are large in size. Examples....Airlines , Railway reservation system, banks, aerospace companies doing complex aircraft design...etc..

Mini Computers

              Mini Computers are lower to mainframe computers in terms of speed and storage capacity, They are low cost. During that time mini computers were bought by lot of customers in market because of low cost.

Micro Computers

               Micro Computers are several times cheaper than mini computers. This device include with a Microprocessor as its central processing unit. Micro Computers are further classified into four they are as follows

                                  Micro Computers

•  Workstations 
•  Personal Computers 
•  Laptop computers
•  Palm PCs       

                                                          

Workstations

                      It is a desktop machine used for intensive graphical applications. This device has a high resolution color graphics. Workstations are used for graphic intensive applications such as Computer Aided Design(CAD). 

Personal Computers

                        These desktop computers are also known as home computers or simply called as PCs. Today the PC are the most popular computer systems.

Laptop Computers

                        These  device are portable computers and it is also called as notebook computers.