Question

what is the main system of computer ? why?​

Answer 1

Answer:

Explanation:

Upon receiving valid instructions, a computer can perform a variety of operations. What allows us to perform such tasks on the computer is a computer system. A computer system is the sum total of all the components (hardware and software) that makes up a fully functional computer.

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Answer 2

✔purpose of computer:-

〰️》The purpose of the computer is to perform calculations, store information, retrieve data and process information. A computer has programmed data or computer language that tells the computer how to fulfill its purpose. The computer will only do what it is programmed to do.

✔Main components:-

〰️》A computer has four main components: the central processing unit or CPU, the primary memory, input units and output units.

1) CPU ;- The CPU is the primary component of a computer that processes instructions. The CPU contains at least one processor, which is the actual chip inside the CPU that performs calculations.

2) Primary memory ;-computer memory that is accessed directly by the CPU. This includes several types of memory, such as the processor cache and system ROM. However, in most cases, primary memory refers to system RAM.

3) Input units :-  a piece of equipment used to provide data and control signals to an information processing system such as a computer or information appliance. Examples of input devices include keyboards, mouse, scanners, digital cameras, joysticks, and microphones.

4) Output units :- any piece of computer hardware equipment which converts information into human-readable form. It can be text, graphics, tactile, audio, and video. Some of the output devices are Visual Display Units i.e. a Monitor, Printer, Graphic Output devices, Plotters, Speakers etc.