[Music] a computer is an electronic device operating under the control of instructions stored in its own memory that can accept data processor data according to the specified rules produce information and store information for the future use the functionalities of a computer it takes data as input it stores the data or instructions in its memory and use them when required it processes the data and converts it into a useful information it generates the output computer components consist of hardware and software a hardware it refers to the physical parts or components of a computer a hardware consists of input and output device an input device is any peripheral or piece of computer hardware equipment to provide data and control signals to an information processing system such as keyboard [Music] a mouse a microphone and webcam next is an output device an output device is any hardware component that can base information to one or more people the three commonly used output devices are a printer a monitor and speakers a printer produces text and graphics and a physical medium such as paper a monitor to displays text graphics and videos on screen the speakers allows you to hear music voice and other audio a system unit is a case that contains electronic components of the computer that are used to process data the circuitry of the system unit usually is a part of or is connected to a circuit form called the miter port the primary memory of a computer random access memory read only memory [Music] the secondary memory involves the hard drive or hd the optical disk and the flash disk the other component of a computer is the software software is a generic term for organized collection of computer data and instructions often broken into two major categories the system software that provides the basic non-task specific functions of the computer in the application software which is used by the users to accomplish specific tasks the classifications of computer involves personal computer workstation mini computer and the super computer and also it involves laptops netbook tablet and smartphone the characteristics of a computer involved speed accuracy religions storage capability and versatility familiarize yourself also with the different computer traits virals trojan horse and worms you