After processing, processed output known as information is either stored in memory for later use or sent to user with the help of output devices like monitor, printer, speaker etc. Received data from user is either stored in the memory for later use or immediately processed by the arithmetic and logic unit to carry out the desired operations. Block diagram depicting major components of computer is shown below: Figure: Computer Block DiagramĬomputer hardware consists of different functional units: input unit, central processing unit (CPU) which consists arithmetic logic unit (ALU) and control unit (CU), memory unit and output unit.Ĭomputer accepts digital data from user with the help of input devices like mouse, keyboard, microphone etc. processor, input devices like keyboard, mouse, output devices like visual display unit (VDU), printer, speaker, connecting wires, casing, storage devices etc. It includes all components that we can see and touch i.e. Figure: Computer System HardwareĪll physical components that make up a computer is known as computer hardware. #Components of hardware software and peopleware of computer software#Software is basically collection of different programs that tells computer’s hardware what to do. Computer SystemĪ computer system consists of two major components, namely, hardware and software.Īll physical components that forms computer system are known as computer hardware. Modern computers are capable of processing more than one byte at a time. A byte can represent one character of data. A byte is the fundamental unit of data representation in computer. Since the bit is a very small unit, virtually, it cannot convey much information while used single.Ĭombination of eight bits is called a byte. In binary system we have only two digits (bits) – 0 and 1 to represent data. They represent data using two distinct values. A computer is a programmable electronic device that accepts raw data and instruction from input device, process data and provides output as information in output device.Īll the modern computers are digital and represents information in binary digits. In other words, Computer is an electronic device capable of performing commands and these commands are basically input, output, storage, arithmetic and logical operations. It is a machine that performs pre-defined or programmed computations or control operations that are expressible in numerical and logical form at a high speed and with great accuracy. #Components of hardware software and peopleware of computer series#The term computer is derived from word ‘compute’ which means to calculate.Ĭomputer is basically a group of electronic devices that can accept data, conduct a series of arithmetic and logical operations on it and give result of these operations as information that is useful to people. Introduction to Computer (Hardware and Software) Introduction
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