What is Computer & How to use it

Posted by Andrew on December 2nd, 2019

What is a Computer?

The word "computer" comes from the word "computation" which means to calculate.
A computer is an electronic device that gives and delivers data
Meaningful information. Processing is done with the help of instructions given by
Users, which are also stored within the computer.
Data refers to all the basic elements that can be produced or processed by a
computer.

Computer details in hindi

Data is a collection of facts and figures that have to be processed by some people
The processing system, (be it humans or machines) is understandable.
Information: It is a processed form of data that makes some sense and helps
To come to a conclusion.
Computer characteristics

Speed

The computer was invented as a high-speed calculator. It has inspired many
Scientific projects that were previously impossible. If we want tomorrow
Weather forecast today, a meteorologist can use computers
Necessary calculation and analysis.
Storage
A computer can store a vast amount of information for its storage space.
Future use that can be called back at any time.
Logical decision
A computer is capable of comparing both numeric and non-numeric data;
Based on the results, it makes some decisions. These decisions are logical
Decisions that help a computer decide its course of action.
Super efficiency and automation
Unlike humans, computers can work for hours and produce error-free results.
Computers process data with the help of instructions fed to them, this is what works
on its own. Computers manipulate data according to instructions and they
never get tired.
Accuracy
The accuracy of the computer is consistently high. Machinery errors may occur
But, due to the increase in error in detection of technology, this rarely happens
Wrong result.

Reliability
Computer output is generally very reliable, subject to the condition that the input data
Computer access must be correct and instructions must be programmed
Reliable and correct.
Versatility
Computers seem capable of performing almost any task, provided they can do
For example, a series of logical steps can be reduced for tasks such as preparing payroll
Or control the flow of traffic can be broken in logical order
Operations. Yet computers have only limited capacity and, in the finals
Analysis actually performs only four basic operations:
• It exchanges information to the outside world through I / O devices.
• It transfers data internally within the CPU.
• It performs basic arithmetic operations.
• It conducts comparisons
The computer system is made up of the following components
 input device
Unit Central Processing Unit
 Output device
input device
Input means the transfer of raw data to the processing device via the input device
The input unit allows us to communicate with the computer. Converts an input unit
Numbers, alphabet or other signs in the internal binary code (to be discussed)
Later). Keyboard, mouse, joystick, light pen are examples of input units. we will do
Later discuss the input device in details.
Central processing unit
Another important component of a computer system is known as the CPU. It accepts
Instructions via the keyboard, store them in memory and execute them later
them. It can also be thought of as the "brain" of a computer. It performs all
Compute and control the overall activities of the computer.
CPU has three components
 Arithmetic Logic Unit
 Memory Unit
 Control Unit

Output device
The device through which we get processed information or desired results,
Is known as an output device. There are different types of output devices
Return the information given by the user. The most popularly used output devices are
Visual display unit (VDU) or monitor, printer, plotter etc.
How does the computer work
Central Processing Unit: Central Processing Unit (CPU) is the processing device
computer. It is nowhere that actual work is done. CPU is like 'brain'
computer. It takes information from the input unit and memory and uses or processes it.
According to the instructions given. It can give or give information in memory
Results for the production unit.
The following figure indicates the speed of data in the computer.

Control unit: It controls the overall activities of a computer system. Found
Sends information to input unit information, output unit or transfer
Information to or from the computer's memory. It is important that everything is done
In exactly the right order and at the right time, so there is an exact clock within
The computer that is connected to the control unit.
Internal Memory / Primary Memory In a PC, internal memory is usually contained.
In silicon chips. It holds instructions and data that the computer currently has
Whenever necessary, work can be done by the CPU. Internal
Memory needs to work very fast because CPU speed is very high and
Information needs to be readily available.
There are two types of internal semiconductor memory
RAM
Rome

RAM (Random Access