This document outlines the history of computers from the 1st to 5th generations, describing the advantages and disadvantages of each generation. It also covers types of computers including analog, digital, and hybrid computers, and provides a classification of computers into micro/personal, mini, mainframe, super, and embedded computers. The document concludes with a references section.

1. Table of Contents
Generations of Computers ............................................................................................................1
1st Generations of computers (1942-1955)...................................................................................1
 Advantages .......................................................................................................................1
 Disadvantages ..................................................................................................................1
2nd Generations of computers (1955-1964).................................................................................2
 Advantages .......................................................................................................................2
 Disadvantages ..................................................................................................................2
3rd Generations of Computers (1964-1975) ..............................................................................3
 Advantages ......................................................................................................................3
 Disadvantages .................................................................................................................3
4th Generations of Computers (1975-Present) ...........................................................................4
 Advantages .......................................................................................................................4
 Disadvantages ..................................................................................................................4
5th Generation of Computer (Present-Beyond) ..........................................................................4
Types of Computer .......................................................................................................................5
1. Analog Computer ............................................................................................................5
2. Digital Computer .............................................................................................................5
3. Hybrid Computer.............................................................................................................6
Difference Between Analog & Digital Computer ........................................................................6
Classification of Computer............................................................................................................7
1. Micro/ Personal Computer.............................................................................................7
2. Mini Computer...............................................................................................................7
3. Mainframe Computer.....................................................................................................8
4. Super Computer .............................................................................................................9
5. Embedded Computer....................................................................................................10
References.....................................................................................................................................10