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Third Generation (1960s)

                  In the third generation, the invention of Integrated Circuits (IC) led to smaller-sized
                  computers with better functioning and more storage.

                                                            Features of Third Generation Computers


                                                       •  These computers were made of ICs.
                                                       •  The use of the ICs reduced the size and increased
                                                          the speed of the computers.

                                                       •  They were more affordable and dependable.
                       Integrated Circuits


                  Fourth Generation (1970s)

                  In the 1980s, Very Large Scale Integration (VLSI) came into existence in which thousands
                  of transistors were placed on a single chip called a microprocessor.




















                                       Microprocessor                                IBM PC


                  IBM released their first line of desktop PCs, which used the Intel 8088 chip as their CPU.

                  In 1983, IBM introduced the PC-XT, which had more memory and more hard drive space.
                  In 1985, Microsoft released the first version of Microsoft Windows.



                                          Features of Fourth Generation Computers

                                      •  Microprocessors were invented.
                                      •  Small in size and could be placed on an office table.

                                      •  Hard disk to store data.
                                      •  Introduction of GUI operating system.











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