The use of computers has increased manifold in the last few decades. There have been people who have used the computers for the past few decades and all these people will know the various differences that have occurred over the years. The functionality of the computers have increased and the size of the computers have decreased over time. This is one of the best things that have happened in the world of technology.
The initial computers that were built were stored in a whole room and all that the computer could do was the basic calculations that were done by calculators. This has changed over the years and as there were technological advancements like nanotechnology, the people have built smaller computers that do far more functions than a person can ever imagine.
The later computers took a long time to boot and used to hang if a lot of functions were loaded at a time. These days, the time that is taken for the computer to start has decreased a lot and the person is able to use the computers with great ease. There is also a lot of changes in the internal configuration of the computer. The processors that are used in the computers have also undergone a sea change. This has made computers to be more than just machines. They are replacing humans in doing various functions and the repeatability of the job is very high. There is also no fatigue, unlike human beings. So the role of the computers is sure to increase further in the days to come. These days, the devices that are used are much smaller and the net pads and note books are available. Even the mobile phones have undergone a lot o change and many people use them as a smaller version of computers too.