What is a computer basic? - What is a computer system Working

What are the types of computers?

what is a computer short answer?

 

Computer is a modern high-speed electronic device. No more than two or three things can be done with the help of other electronics. But with the help of computer, many difficult tasks can be done perfectly. The two main features of the computer are 1. It can store millions of data. Can follow very fast and accurate instructions.

The word computer comes from the Greek word compute. The word compute means to count. The word computer basically means calculator. (Again, the Latin word Computare is derived from the word Computer.) In the past, only calculations were done with a computer. Computer language is a computer language based on electronic signals. The computer publishes the results based on the instructions given to the computer through the computer language. The language of the computer is the computer program. Computers without programs are inert matter.

 

Computer contact:

A computer is a device that receives data in a certain way and processes it according to instructions. After processing, the results may be provided in the form of information under certain rules or may be automatically applied to another machine through a signal or applied to another process. Nowadays, all the work of the computer that we see is usually done by processing the data through numbers (Digit) with the help of electron (i.e. electricity) flow. For this they are called electronic digital computers.

 

Microcomputers or personal computers (PCs) are currently the sixth most widely used type of computer. A complete personal computer system consists of a microprocessor and some accessories, one or more circuit bars with primary memory storage input / output circuit, input / output and secondary storage devices. All of these devices or parts and anything that can be touched or touched by a computer are called computer hardware. And all the programs used to operate a computer or make it usable (which is a series of instructions) are called software. Below is a brief description of the major hardware of a personal computer.

what is a computer system?

Input device: 

In order to process data or programs on a microcomputer, the first human-compliant letter, number, or instruction is delivered to the computer's memory through an input device known as an input. The computer converts this information or instruction into its binding language binary code. In the binary system, numbers are expressed with only two numbers or digits 0, 1. One of these two digits is called bit. Bit is short for Binary Digit. The combined unit of eight bits is called a byte. This binary method was invented in 1854 by an English mathematician named George Bouli. After converting to binary code, it is sent to the primary memory via a digital electrical signal. From there they are used in various parts of the computer as needed. Direct communication of the computer with the driver is established through the input device. Keyboard, mouse, optical scanner, and lightpen are among the input devices. Floppy disks and hard disks also often act as input devices on computers.

Key-Baird:

The most commonly used input device on a computer is the keyboard. Looks like the first half of a typewriter and sorts in Kigula almost the same way. A special type of electronic switch works on the keys of this keyboard. Pressing each key generates a series of digital electrical vibrations specific to a particular character or statement and sends them to primary storage. Character is any letter, star, punctuation mark or special symbol like - #, &,> etc. Any instruction written in the program is called a statement. Modern keyboards usually have the following keys in addition to the alphabet keys and the spacebar.

Numeric key:

By pressing these keys, a digital electric vibration of 0 to 9 is obtained. In many cases these are located on the right side of the main keyboard, as the key pad. And they are easily used for any long mathematical sum or data entry.

 

Cursor controller key:

The cursor is the place where the computer will highlight the new character on the monitor, i.e. the place where the new entry will take place. Pressing the cursor controller moves the cursor in any direction as desired.

Function key:

All the keys that can be pressed to give a special statement / instruction are called function keys.

Backspace key:

 The key that can be used to delete text on the left side of the cursor is to move the cursor to the left.

Enter or return key: 

This key is used to go to the next paragraph or to execute an instruction. Many times more than one key can be pressed together or one after the other to perform special tasks.

Mouse 

Sixthly, if this electronic device is connected to the computer, it can be placed on a table or any flat place, moved in any direction as desired, the cursor can be moved as desired or any task described on the screen can be given to the computer.

Optical Scanner: 

It can be used to convert any printed part or image to digital signal and send it to primary storage and to store it in secondary storage, which can be used for later modification / expansion.

Light Pen: 

Using it, the visual part of the computer monitor can be easily changed in a short time with the help of touch.



The Central Processing Unit (CPU) is the main part of the CPU computer. It consists of a circuit board that connects to the main microprocessor, additional microprocessors (eg microprocessors controlling the functions of the input-output device), other active components and chips, via a connection medium called bus or highway. A bus or a highway is a medium that transmits electrical signals from one part of a computer to another. It is a set of wires or very fine superconducting lines on a computer chip. The CPU controls the processing of data on the computer, the execution of instructions, and all other functions. The CPU has three main parts. E.g. -

• 1. Arithmetic Logic Unit (ALU) 
• 2. Storage 
• 3. Control