Management Studies

         Components of Computer System- Hardware and Software Every computer is composed of two basic components called, hardware and software.  Hardware includes the tangible parts of the computer which either can be seen or touched, for example, CPU, keyboard, mouse, monitor, LCD screen and printer, whereas, the software are the components which activates the physical parts.  Software consists of features that are responsible for directing the tasks to the hardware.  Software can be divided into other programs and data. As compared to software, hardware is a physical entity. Both hardware and software are interconnected, without software, the hardware cannot function. However, without the creation of hardware to perform tasks directed by software via the central processing unit, software would be useless . Hardware : Hardware is basically the physical element of a computer. It is also called as the machinery or the equipment of the computer. However, most of a computer's hardware

  Types of Computer Various types of computers are available now a day. The function of each type of computer is to process the data and provide some output to the users. However, the techniques utilized by the computers for data processing and handling may differ. Computers can widely be differentiated on the basis of their abilities to process data. They are classified according to the purpose, size and capacity, and data handling or technology used. We can classify the computer according to the following three basis, as mentioned in figure A             On the basis of Purpose: 1 )      General Purpose Computers: General purpose computers fulfil general requirements such as gaming, word processing, invoicing etc. These are usually used at home, school, and in offices. 2)     Special Purpose Computers: Special purpose computers are designed to perform specific tasks. These may be used for research activities such as weather forecasting, space research, defense research et

                    Computer  Generations When introduced first early in 1940’s, computers were very capacious electronic devices that needed bunches of people to handle and operate them. But with the passing of time and evolution of technology, computers of today are very astounding and have gone through a complete overhauling. Computers of now are so tiny that they can fit on your desk, on your lap, or even in your pocket and they are now thousands of times more expeditious. However, there are six apparent generations of computers which are explained below. Every generation of computer is well-defined by a paramount technological development which changes necessarily how computers operate leading to more compressed, inexpensive, but more dynamic, effective and booming machines. 1) First Generation (1940-1956):   The first generation computers used vacuum tubes for circuitry and magnetic drums for memory.  The size of first generation computers were very huge taking up the space of al