A computer is an electronic machine that processes data. Information given to the computer is called data. Computer works very fast. It saves your time and energy. It does not make mistakes. It can remember a lot of things. The basic parts of a computer are shown in the picture given here.
These parts of the Computer and some other devices are connected together with the help of wires and cables.
The basic parts of a computer system are:
- CPU (Central Processing Unit)
Let us find out about some more devices that can be connected to a computer.
Devices that help us put data into the computer are called input devices. They help in giving instructions to the computer. Let us learn about a few input devices.
The keyboard is used for entering data into the computer system. It can type words, numbers and symbols. More information of computer keyboard Click here.
The mouse is a pointing device. You can give input to the computer with the help of the mouse. More information of computer mouse
A joystick makes computer games a lot more fun. When it is moved, it passes information to the computer.
A microphone is the mike that can be attached to a computer. It allows you to input sounds like speech and songs into the computer. You can record your voice with the help of a microphone.
A web camera is used to take live photos videos. You can save them in the computer.
A Scanner Copies pictures and pages, and turns them into images that can be saved on a computer.
All the inputs are stored, sorted, arranged and changed by a computer. The device that helps a computer do so is called the processing device. The processing device in a computer is known as Central Processing Unit (CPU).
The parts of a computer that help us to show the results of processing are called out devices. Let us learn about a few output devices.
A monitor looks like a TV screen. It shows whatever you type on the keyboard or draw with the mouse.
A printer prints the results of your work from the computer screen on a sheet of paper. This is called a printout.
The speakers are the output devices that produce different types of sounds processed by the computer. You can listen to songs or speeches stored in the computer with the help of speakers.
You can listen to music or any sound from a computer with the help of headphones without disturbing others.
The parts of a computer which are used for storing data are called. Storing data are called storage devices. They help in storing any work done on a computer permanently. Let us learn about a few storage devices.
Inside the CPU there is a hard disk. It is made up of one or more metallic disks. It stores a large amount of information.
A floppy disk stores small amounts small amounts of information. It works when it is inserted into the floppy drive. The floppy drive is fixed in the CPU.
Compact Disc (CD):
A CD stores many times more information than a floppy disk. It works when it is inserted into the CD drive. The CD drive is fixed in the CPU. Note: Not handling the CD properly may result in loss of data stored.
All computer parts Glossary :
Compact disc: It stores information many times more than a floppy disk.
CPU: The processing device in a computer.
Data: It is the information given to the computer.
Electronic machine: It is the machine that runs with the help of electricity.
Floppy disk: It stores a small amount of information.
Hard disk: It stores a large amount of information.
Headphones: The device for listening to the recorded sounds without disturbing others.
Input devices: These help us put date into the computer.
Joystick: It is used for playing computer games.
Keyboard: This is used to enter data into the computer system.
Microphone: It is used for recording sound.
Monitor: It shows whatever you type on the keyboard or draw with the mouse.
Mouse: It is pointing device.
Output devices: These help us to show the results of processing.
Processing device: Helps to store, sort, arrange and change the inputs on a computer.
Scanner: It copies pictures and pages and turns into images that can be saved on a computer.
Speakers: These are used for listening to recorded sound.
Storage devices: These are form the memory of the computer.
Wed camera: It is used for taking live photos and videos.
A computer is an electronic device capable to receive information (data) as input and give result as output after performing the sequence of operations (variable set of procedural instructions).
Essay on Computer
Find very simple to write and easy to learn essay on computer. Computer is a very high technique invention which everyone must know about and its advantages in life. It is very much liked by kids. So bring some creativity in the education of your kids and children through computer. We have provided below various computer essay in different words limit like 100 words, 150 words, 200 words, 250 words, 300 words and 400 words according to the need and requirement of students.
Computer Essay 1 (100 words)
A computer is a great invention of the modern technology. It is generally a machine which has capability to store large data value in its memory. It works using input (like keyboard) and output (like printer) devices. It is very simple to handle the computer as its functioning is so common that a child can handle it. It is a very reliable device which we can carry with us and use anywhere and anytime. It allows us to make changes in the already stored data as well as store new data. Computer is a new technology which is used in offices, banks, educational institutions, etc.
Computer Essay 2 (150 words)
Computer is a modern tool which has made life very easy and simple. It has capability to complete more than one task in small time. It is able to do work of many human beings alone within less time. It is the utility of highest efficiency. The first computer was a mechanical computer which was created by the Charles Babbage. A computer works successfully using its hardware and fully installed application software. Other accessories of the computer are keyboard, mouse, printer, CPU and UPS.
The data which we put into the computer using device is called input data and device as input device and data which we take outside using printer or other device is called as output data and device as output device. The input data gets changed into the information which can be stored and changed anytime. Computer is very safe tool for data storage which is being used in various fields. We can shop, pay our electricity bill, water bill, video chat, messaging, e-mail messages anywhere in the world and lots of online activities using internet.
Computer Essay 3 (200 words)
Computer is the latest technology which is used almost everywhere. It has made possible to do large amount of works in very small time. It has reduced the man effort in the offices means it gives high level of work output in very small time, less effort, low man power, etc. Now a day, it has become hard to imagine our lives without computer. We can use internet in the computer which gives us lots of required information on any subject in very less time. There are great contributions of the computer in the lives of human being. It is playing big role in every field and helping us every single moment. Old generations of the computer were less effective with less functions but new generations of it are amazing with high capacity, easy to handle and more functions.
Future generations of the computer would be more effective and lots of functioning. It has made our life easier. Using this we can easily learn anything and enhance our skill. We can get any information about any service or product or other thing within no time. We can buy anything online using computer and internet and get free delivery. It is very useful for the preparation of project work of any student reading in any class.
Computer Essay 4 (250 words)
Computer is the wonderful and mastermind gift of the science to the whole human fraternity. It can be used to do any kind of works. It is very easy to handle by anyone and takes very less time to learn. Because of its easiness and high work efficiency, it is being used in many fields like offices, banks, hotels, educational institutions, shops, hospitals, commercial places, schools, colleges, training institutes, military establishments, military, industries, etc. Many people buy laptop or desktop for their kids to learn about required things in their schools or playing computerized video-games, etc.
Computer is a big dictionary and large storage device which we use to save any type of large amount of data like information, study materials, projects, photos, images, video, audio, songs, clips, games, and many more. It is an electronic machine which is able to calculate and solve big problems. It helps in enhancing our skill level and get information easily. It is very simple data based machine. It provides facility of many other tools like paint tool, text tool, etc which are very beneficial for the kids, children and students to use it more effectively.
We can use it for any big or small mathematical calculations very accurately. It is used to forecast the information about weather, in printing books, news papers, diagnosing diseases, etc. It is used to make online railway reservations, ticket booking, hotel or restaurant booking from any place all over the world. It is used by MNC companies for the accounting purpose, invoicing, pay rolls, stock control, etc.
Computer Essay 5 (300 words)
In the modern world of technological advancement, computer is the amazing gift given by the science to us. It has changed the living style and standard of the people. No one can imagine the life without computer as it has made lots of works so easy within less time. Computer is playing great role in the development of the developing countries. It is not only a storage or processing device but it is like an angel which can make anything possible. By many people it is used as the source of entertainment and communication.
We can get connected to our friends, relatives, parents or others in no time through the use of video chat or email. Using internet in the computer we can search and retrieve vast information on any subject useful for our education or project work. It is very safe and easy for the business transactions purposes through banks to any accounts. By providing the facility of data storage it has lessen the paper works in the governmental and non-governmental offices or colleges. One can save lots of time and effort by online shopping, paying bill, etc by being at home through the computer.
Computer education has been made compulsory by the government of India in all the schools, colleges and other educational institutions for enhancing the skill level as well as the easiness of the students in their professional life. Learning computer has become very essential in all the modern-day jobs. In the higher education there are subjects like network administration, hardware maintenance, software installation, etc for the enhancement of skill.
Computer Essay 6 (400 words)
Invention of the computer has made many dreams come true even we cannot imagine our lives without computer. Generally computer is a device used for many purposes like information storage, email, messaging, software programming, calculation, data processing and many more. Desktop computer need a CPU, an UPS, a keyboard and a mouse for well functioning however laptop does not need anything to add outside as it is included with all inside. Computer is an electronic device having big memory which can save any data value. We are living in the advanced world of computer in the 21st century.
Earlier the functioning of the old generation computer was very limited but new generation computers are amazing with lots of functioning. Charles Babbage had invented the first mechanical computer which was totally different from the modern day computer. The aim of computer invention was to create a machine which can perform very fast mathematical calculations. During the World War II it was used to locate and estimate the direction and speed of weapons of the enemies. Modern day computers are available with the artificial Intelligence technology to helps us in every sector of life.
New generation computer are being highly advanced means smaller, lighter, speedier and more powerful. Now a day, it is running in almost all walks of life like weather forecasting, guidance of spacecraft, examinations, education, shopping, traffic control, high level programming, automation in banks, railway ticket booking, playing games, medical sector, machinery operations, job opening, business, crime detection etc. It is the backbone of the Information Technology including with the internet and proved that nothing is impossible today. If there are positive effects of the computer on the life of human being, it also negatively affected the human lives such as rise in the Cyber crime, pornographic websites can be accessed by kids or younger and many more however using some preventive measures we can be safe from its negative effects.
The whole human fraternity is becoming highly dependent on the computer technology; no one can imagine life without computer. As, it has spread its wings so deeply in every area and made people used of it. It is very beneficial for the students of any class. They can use it to prepare their projects, learn poems, read different stories, download notes for exam preparations, collect large information within seconds, learn about painting, drawing, etc. It enhances the professional skills of the students and helps in getting job easily.