What are computers?
A computer is an electronic device that processes information in the data inputted by the user and provides information as a result, that is, an computer is an electronic machine that follows the instruction given by the user. It has the power to store, retrieve and method information. You can use a laptop to kind documents, send emails, play games, and browse the online. You can use it to create spreadsheets, presentations, and even videos.
"Computer user by input the data are
process and the results outputs provides as"
"The Data Input process by computer user
by output results are provided As"
Input (Mouse, Keyboard, Scanner, Joystick, Mic, Webcam)⇓Process (C.P.U or Processor)⇓Output (Monitor, Printer)
The word Computer has its origin in the word "COMPUTE" in English which means "to calculate". Therefore, it is clear that the computer has a direct relationship with the calculating device, at present its area has become very wide rather than being limited only to computation. The computer due to its high storage capacity, speed, automation, effciency, accuracy, versatility, reliability, remembering power of our life. Is becoming important in every field. Calculation can be done by the computer at a much faster time in more subtle time, the results given by the computer are more accurate.
Nowadays computer is being used in every region of the world such as - space, film production, traffic, industry trade, railway station, school, college, airport etc. Whereas reservation of seats in airplanes, railways and hotels is done by computer, on the other hand, due to computer in banks, the work is being done with accuracy and speed.
Hardware V/S Software
Before talking about different types of computers, we come to know about two things that are common to all computers: Hardware and Software
- Hardware:- Hardware is any part of your computer that includes a physical structure, such as a keyboard or mouse. It also includes all the internal parts of the computer.
- Software: Software is any set of instructions that tell the hardware what to do and how to do it. Examples of software include web browsers, games, and word processors, etc. Everything you do on your computer is done by both hardware and software. For example, right now you are viewing this text in a web browser (software), it is a software and using your mouse (hardware) to click on a page, then the mouse is a hardware.
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types of Computers
When most people hear the term computer, they think of a personal computer such as a desktop or laptop. However, computers come in many sizes, and they perform many different tasks in our daily lives. When you withdraw cash from an ATM, scan groceries at the store, or use a calculator, it means that you are using a type of computer.
- Computer Desktop:- Many people use desktop computers at work, home and school. Desktop computers are designed to be placed on a desk, and they are usually made up of a few individual parts, including a computer case, monitor, keyboard, and mouse.
- Laptop Computers:- The Second type of computer you are familiar with is a laptop computer, commonly called laptop. Laptops are battery powered computers that are more portable than desktop, allowing you to use them almost anywhere.
- Tablet Computer or Tablet:- Tablet computer-or tablet-are handheld computers that are also more portable than laptops. Instead of a keyboard and mouse, tablet use a touch-sensitive screen for typing and navigation. The iPad is an best or better example of tablet.
- Servers:- A server is a computer that provides information to other computers on the network. For Example, whenever you use the internet, you are looking at a server that is stored on the server. Many businesses additionally use native file severs to store and share files internally.
Other types of Computer
- Smartphone:- Many cell phones can do many thing including browsing the internet and playing games. They are often called smartphones.
- Wearable:- Wearable technology is a generic term for a group of devices- including fitness trackers and smartwatches - that are designed to be worn throught the day. These devices are often called wearables.
- Game Console:- A game console is a special type of computer that is used to play video games on your TV.
- Television(TV):- Many TVs now include applications or apps that allow you to access a wide variety of online content. For example, you can stream videos from the internet directly to your TV Such television is called Smart TV
Features / Characteristics of computer
- Automation:- We use many types of automated machines in our daily life. The computer also does its entire work in an automatic way. The computer keeps doing its work automatically once the program is loaded.
- Versatility :- Computer has increased repidly due to its universality and is gaining dominance in the whole world. Computer is being used for doing mathematical work as well as for commercial work. Computer is being used in every field. Such as Bank, Railway, Airport, Business, School etc.
- Accuracy:- Computer does all its work without any fault. If you are asked to multiply 10 different numbers, then you will make many mistakes in it. But generally, the computer can complete any process without any fault, the biggest reason for the mistake by the computer is wrong data input because the computer itself never makes any mistake.
- Speed:- You can go anywhere on foot, still use bicycle, scooter or car so that you can do any task faster, with the help of machine, you can increase the speed of work. Similarly, computer can do million of action like multiplication, addition, division, substraction in a few seconds. If you do the same with calculator, about 1 or 2 Second's Computer summer will can in a few seconds to more than a million.
High Storage Capacity
The ability to store data in a computer system is very high. Computer can store million of words in very less space. It can store all types of Data, Picture, Files, Program, Games and Sound for many years. And later on we can get any information in a few seconds and can use it at any time.
- Diligence:- Today, the human is tired of doing a work for a few hours continuously, on the contrary, computer has the ability to do a task continuously for many hours, days, months, yet there is no shortage in its ability to work and Nor does the accuracy of the result of the work decrease. Computer performs any given task without any discrimination whether the task is interesting or not.
- Reliability:- Memory of computer is more powerful. The entire process related to computer is reliable, it does not get tired while working for years and Store Memory remains accurate even after years.
Power of Remembrance:-
A person does many things in his life but remember only important things, but the computer stores all the things, whether it is important or not, and keeps them all inside the memory and provides any information later when needed.
- Summary Words:-
- A computer is an electronic device.
- The word computer is comes from the word "compute" in english.
- The computer processes the data inputted by the user and provides the result as output.
- Software is a set of instructions that tell the hardware what to do and how to do it.
- Hardware is that part of your computer that includes physical structures.
- A laptop is a battery-powered computer that is more portable than a desktop.
- The tablet uses touch-sensitive screen for typing and navigation.
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