Generation of computer from 1st to 5th

What is a computer ?

It is electronic device which is used for processing , storing and displaying information.

Generations of Computers :

First Generation - 

• Period : 1940-56
• Vaccum Tubes
• Speed - 330 microsec 
• Example of Ist Generation Computers - UNIVAC-1 ,ENIAC etc.

Second Generation - 

• Period : 1956-63
• Transistors
• Speed - 10 microsec 
• Example of 2nd Generation Computers - IBM 7094 , CDC 1604 etc.

Third Generation - 

• Period : 1964-71
• Integrated Circuits
• Speed - 100 nanosec 
• Example of 3rd Generation Computers - IBM 370 etc.

Fourth Generation - 

• Period : 1971 to Present
• LSIC , Microprocessor
• Speed - 100 nanosec 
• Example of 4th  Generation Computers - Apple Macintosh & IBM PC  etc.

Fifth Generation - 

• Period : Present
• SLSI , Artificial Intelligence
• Speed - Not determined 

Read More : Ms-Excel Shortcut keys
                 : Shortcut Keys Ms-Word
                     : Shortcut Keys Ms-Access