models of computers

Types of computer systems:

Microcomputer

Minicomputer

Mainframe computer

Supercomputer

details of computers

3>Firm Ware/Live Ware: -

            The user of the computer is called live ware.

 

                                                      COMPUTER

 

                       

                Analog                    Digital              Hybrid Computer

 

          Mainframe          Mini           Micro          Super

        

                               Notebook                         P.C.                          Desktop

 

                                               

PC                     PC-XT            PC-AT

 

AT         AT              AT              AT

286          386           486              Pentium Series

                                             

Descriptions of apllication softwares

 2>Application Soft Ware: -

          

Application soft ware is an instruction given to the users

                        E.g: - MS Word

                                  MS Excel

                                  MS Access

                                  MS Power Point

                                  Maya, 3-D Max, 

                                  Photoshop, etc,.

importance of computers

1.      Generally where do we use the  computers?

A. The major areas where computers have established their utilities are.

                        1.         Business and industries

                        2.         Science and technology

        3.         Education

                        4.         Government organization

                        5.         Desktop publishing

                        6.         Sports

                        7.         Movies

                        8.         Music

                        9.         Defense

                       10.        Airlines

software details

1>System soft Ware: -

            There are the instructions to the computer hard ware written in machine language.

                        E.g: - Operating System                                    Single User

                                                                                                Multiple Users

                                    Compliers

                                    Translators

computer system operation method

Computer systems: -

            The major components of computer system are

                                    1.         Hard ware

                                    2.         Soft ware

                                    3.         Live ware (or) firm ware

           

Hard Ware: -

The physical components which we can see and touch and feed in the computer system are called hard ware.

                        Computer

                        Primary storage

                        Secondary storage

                        Input devices

                        Output devices

           

Soft Ware: -           

It is an instruction that tells the computer to perform a task.

            It is of two types

                        1. System soft ware

                        2. Application soft ware

Descriptions of computers

Types of Computers:

Analog Computers: -

It recognizes data as a continuous measurement of a physical property

1.      Auto mobile Speedo meter

2.      A furnace thermo stat

Digital Computers: -

Digital computers are high speed; programmable electronic devices that perform mathematical calculations compare values and store the results. They recognize data by counting discrete signals either a high “on” or low (off) voltage state of electricity, numbers and special symbols can be reduced to representation by 1’s(on) and 0’s(off).

             A=01000001

             B=01000010

             C=01000011