i want an essay on computers
Answers
A computer is a machine that takes some input data and performs a series of calculations and then computes the intended result. A computer automatically performs the instructions given to it in the form of a computer program.
The computer which is programmable had taken a shape in 19th century through the mechanical computer by Charles Babbage. In 20th century electronic computers were initially designed using big electrical components. After the invention of semiconductors and electronic transistor devices, the size of the computer drastically reduced. After microprocessors are invented, the era of personal computers has started.
A computer understands and performs arithmetic and logical calculations in terms of two binary arithmetic system, namely, 0 and 1. A device that stores and changes its state from 0 to 1 or vice-versa is called a switch. This is the fundamental building block of an electronic device including a computer.
A computer has devices of three types, namely, input devices, the processor and the output devices. The input devices (keyboard, mouse) allow the inputting data to the software program. The processor (CPU : central processing unit) performs instructions by reading from main memory and storing results into the main memory. The output devices (monitor, printer) allow access to the processed output.
A computer is now used in every field for automatically furnishing services by application softwares. A computer is used for data storage too. A computer has the advantages that it can work 24/7, performs complex operations and eliminates human errors. It can performs work very quickly in a reusable manner. It eliminates requirement of a lot of stationary and manual records. In this age of information technology and telecom era, computers are a great boon of the inventors to the human kind.
Computer
After so many inventions and discoveries, Humans finally made computer. And, today there are some people in the world who can't live a bit without computer or mobile phone.
Computer means system device used for doing large processes and calculations in less time. Computer system works by 0,1
0,1 is called as binary language of computer. Any computer or system device can work properly because of using Binary language.
There are so many important components of computer. Because of so many components work at same time, computer system works properly.
Any computer is dependent on the following components:
1) RAM
2) ROM
3) Processor
4) Display
Computer are mainly used in office works, Home works, Construction works and so many things. Computers are also used in various organisations and companies. Millions of people use internet for their daily work like - Making presentations, Making documents, Tables.
If we connect internet with our computer, then we are connected with all world. And we know that, if we connect to the internet, then we are connected to the all world.
After connecting internet to the computers, we can access any site on the internet with the help of computer. Also, we can access all social media like sites with the help of computer.
Millions of people uses internet for the educational purposes. We can get the information of anything or any matter with the help of computer. With the help of computers, we can complete our any project easily.
There are some disadvantages of computers too.
After using computers for long time, our body can have the harmful effects on it. If we use computers 6 to 7 hours daily, then our Neck can have the harmful effect.
We can have Brain tumor disease because of large use of computer. Also, we can get distracted because of computers in studies.
So, We should use computers for less time and for good purposes. And we should not use the computers for very long time.