Unique Computer Classes & Training Centre

  EVOLUTION OF COMPUTERS- The computers of today are vastly different in appearance and performance as compared to the computers of earlier days. But where did this technology come from and Where is it heading? To fully understand the impact of computers on today’s world and the promises they hold for the future, it is important to understand the evolution of computers.    1. The First Generation: The first generation computers made use of: Vacuum tube technology, Punched cards for data input, Punched cards and paper tape for output, Machine Language for writing programs, Magnetic tapes and drums for external storage.   2. The Second Generation: In the second generation computers: Vacuum tube technology was replaced by transistorized technology, Size of the computers started reducing, Assembly language started being used in place of machine language, Concept of stored program emerged, High level languages were invented.   3. The Third Generation:  The third generation computers were ch

Operating System in Computer- An Operating System (OS) is a most important software or collection of programs that acts as an interface between the user and the computer hardware . It also allows you to communicate with the computer without knowing how to speak the computer's language. Moreover, the operating system manages the software side of a computer and controls programs execution. It is not possible for the user to use any computer or mobile device without having an operating system . Without an operating system, a computer is useless.   Examples of Operating System are: Apple macOS, Microsoft Windows, Google's Android OS, Linux Operating System, and Apple iOS. The operating system ensures smooth and efficient operation of a computer. Memory management :     Allocation of main memory and other storage to the system programs and the user data and programs. Input/output management :    Management of the input/output devices and their assignment to the various programs t