Processor (CPU) – The processor, also known as the Central Processing Unit runs the operating system and other applications. It is constantly receiving data from the user or other active software. The data is then processed and then an output is produced which either will be displayed on screen or stored by an application.
Computers are all around us, whether it’s in your phone or in the cash register at your local store, to the Google mainframe handling millions of search queries. A general answer to “What is a computer?” would be that screen or box on a desk at school or home. These are merely personal computers; there are many other types of computers, but they all have relatively the same functionality. Computers are a large part of everyday life, most going unseen and unknown.
The term computer is used for any device that me be employed to compute or to calculate. A computer is a powerful tool because it is able to perform the information processing cycle operations (input, process, output, and storage) with amazing speed, reliability, and accuracy; store huge amounts of data and information; and communicate with other computers. Computers allow users to generate correct information quickly, hold the information so it is available at any time, and share the information with other computer users. (University of West Florida, 2016)
A computer defines as a device that accepts information and manipulates it for results based on instructions. The instructions are saved in the device as so called "Programs" and creating instructions is therefore called "Programming".
Multitasking has put more claims on RAM in the past few years. Multitasking is the talent to run more than one program at the same time. For example, many people like to run Netscap...
Ans: It consists of on-chip memory (RAM & ROM), microprocessor and peripheral interfaces, I/O logic control, data converters and other components that comprise a complete computer system. There may be multi microprocessors and also other generators of bus cycle such as DMA controllers. DMA controllers can be arbitrary difficult and are really only distinguished from processors by their complete or partial lack of instruction fetching.
A supercomputer is a very powerful digital computational machine capable of processing trillions of commands per second. It is actually at the leading edge of current processing capacity, especially its unbelievable speed of calculation. They are extremely useful for doing analysis of overtly complicated problem sets related to industry as well as government. So they are usually owned by countries or corporation and never for personal use.
Inside the CPU are registers, arithmetic and logic units (ALU), a floating-point unit (FPU), control circuitry and cache memory. Registers are circuits designed to hold data so that it can be processed in some way by an ALU or the FPU. Cache memory is extremely fast, but small relative to the main memory. Cache memory is used to store the current set of working data and code. So when the processor needs to read the next bit of data or code, usually it can retrieve it much faster from the cache. On occasions when it must recall data from the (slower) main memory, the CPU is forced to wait instead of getting on with other operations.