The CPU has two main parts. 1. The Control Unit. 2. Arithmetic Logic Unit. The parts of the CPU are usually connected by an electronic component referred to as a Bus, which acts as an electronic highway between them. The CPU has special purpose storage devices called registers, helps in storing data and instructions. 1. [...]

Central Processing Unit is the heart of the computer system. Its configuration determines whether the computer is fast or slow in relation to other computers. The CPU is most complex computer system component responsible for directing most of the computer system activities based on the instructions provided. As one computer generation evolved to the next, [...]

Block Diagram of Computer : A computer can process data, pictures, sound and graphics. They can solve highly complicated problems quickly and accurately. Input Unit: Computers need to receive data and instruction in order to solve any problem. Therefore we need to input the data and instructions into the computers. The input unit consists of [...]

Here is the detailed information on all the five generations of Computers : First Generation Computers: The First Generation Computers was marked by the use of vacuum tubes for the electronic components and by the use of electrostatic tubes or mercury delay lines for storage. Examples of first generation computers are EDSAC (1949), EDVAC (1951) [...]

When the human race started doing some trade, it fell a need for a calculating device. An early manual calculating device called Abacus was developed for this purpose. The Abacus that was used more than 2000 years ago is still in use in many countries such as China, Japan, etc. Blaise Pascal developed the first [...]

Although the computers are very fast and accurate still they have some limitations. Computers cannot think itself. It processes the data according to the specifications given by the use. A computer cannot handle errors by itself. Software has to be developed so as to handle both physical and logical errors. Computers can process towards a [...]

Computer is a machine which performs various mathematical and logical operations on symbols and other forms of information and produce result in a form readable by humans and machines. Computer is very useful in almost all walks of life. Some of the major criteria for using computers are: 1. To make quick availability of information: [...]

Definition: The term computer has been borrowed from compute that means to calculate.A computer is an electro mechanical device which has capacity to accept, store, process and retrieve data, according to the user requirements. Characteristics of a computer: The following are the characteristics of a typical computer: Speed: Present day computers operate at a very [...]

A computer cannot work by itself. It has to be instructed to perform a task, using a language which it can understand. A machine can understand only 0’s and 1’s. But it is very difficult for the user to create instructions, or programs using 0’s and 1’s. In order to make the process easy, scientists [...]

Data is collection of facts and figures. It consists of text, number, images or combination of any of these. Information is the processed data. It is the end result of the data collected. Information is the knowledge derived from data. Data Information It is stored data It is a presented fact. It is inactive. It [...]