The computer is an electronic device that provides information from the data entered by users, or can directly say that the computer is an electronic machine that follows the instructions given by the user. It has the ability to store, retrieve, and modify data. You can use the computer to write documents, send email, play games and surf the web. You can also use it to create spreadsheets, presentations and even video.
Table of Contents
Computer Definition and Computer’s Full Form
“The computer gives the results as the output by modifying the data entered by the user.”
The word “computer” comes from the English word “COMPUTE”, which means “calculation”. So it is clear that the direct connection of the computer is with the calculator. The computer has its high storage capacity, speed, automation, efficiency, accuracy, reliability, memory power is important for each field.
Today, computers are used in all areas of the world, such as space, film production, traffic, industry trade, railway station, school, university, airport, etc. Now even the reservation of seats in airplanes, trains and hotels is done with the help of computer and internet.
What is Computer and it’s full form?
Technically, there is no complete form of computer. However, there is a fictitious full form of computer, which we can write in this way ….
C – Common
O – Operating
M – Machine
P – Particularly
U – Used in
T – Technology
E – Education and
R – Research
That is, Common Operating Machine Particularly Used in Technology Education and Research.
If you translate it into Hindi, it will be like this, just like the common operating machine is used especially for business, education and research.
Who invented the computer
Do you also want to know who has invented the computer or who is the computer’s father’s , then tell you that Charles Babage has contributed most to the invention of computers, and this is the reason that he is the inventor of computers and The father of computer is called as he was the first to have analytical engine in 1837.
History of computer
Although all the information about the history of the computer and the development is given to you all in advance, but here are some information being provided to you all.
Although the computer can not be proven accurately from the beginning of development, but officially the development of the computer has been classified according to the generation, they are mainly divided into 5 parts.
Four Functions about computer are:
accepts data ———- input
processes data ———processing
produces output ——- Output
store results ——– Storage
The first generation of computer vacuum tubes (1940-1956)
In the first generation computers, circuits and magnetic drums were used for memory. They were quite large in size and they require a lot of power to use.
Because it was too big, which produced quite a lot of heat, which also caused the problem of malfunction many times. The machine language was used in them. UNIVAC and ENIAC are some of these important examples.
Second generation transistor (1956-1963)
In this generation of computers, the transistor changed the vacuum tubes. The transistor used to occupy very little space, it was small, it was fast, it was cheap and was more energy efficient. They used to produce less heat compared to the first generation computers, but still the problem of heat was to do the same that it was increased and developed.
These included high-level programming languages such as COBOL and FORTRAN.
Third Generation Integrated Circuit (1964-1971)
This generation’s computer used the first integrated circuit. In which the transistor was inserted into small silicon chips, which is called a semi conductor.
For the first time, the makers, keyboards and operating systems were used to make computers of this generation more user-friendly. It was launched in Market for the first time.
Fourth-generation microprocessor (1971-present)
The specialty of this generation is that the microprocessor was used in it, which allows thousands of integrated circuits to be embedded in the same silicon chip. The use of the microprocessor also increased the efficiency of the computer, as well as it was able to calculate large in a very large scale.
Fifth generation artificial intelligence (current and beyond)
This generation is from today’s era, where Artificial Intelligence has established its power. Now, many new technologies like Speech recognition, Parallel Processing, Quantum Calculation have started to appear. It is a generation in which computer has artificial intelligence, due to which it is capable of making its own decisions. By gradually all your work will be automated by this generation of computers.
What is hardware and software
Before talking about different types of computers, we know two things that are common in all computers: hardware and software.
Hardware is a part of your computer that has a physical structure, such as a keyboard or mouse. It also includes all the internal parts of the computer, which you can see in the image below.
The software is a set of instructions that tells the hardware what to do and how to do it. Examples of software include web browsers, games and word processors. Everything you do on your computer is done by hardware and software. For example, now you see this text in a web browser, it’s a software and when the mouse is used to click on the page, the mouse is a hardware.
Types of Computer
There are too many words to describe different types of computers. Most of these words mean computer size, expected use or capacity…..
Types of Computer:
1) PC (personal computer):
Personal computer is a computer used by a user at a time. The microcomputer word is related to the microprocessor which is used with a personal computer to modify data and instruction codes. These are the most common types of computers because they are not very expensive and a common man can use it according to their capacity.
Although desktop computers are not designed like mobile but they can be moved from place to place, but only in a new desktop location and there should be power supply, you can use it only .
Desktop computers are bigger and heavier than laptops.
It is a type of computer used for engineering applications (CAD / CAM), desktop publishing, software development and other types of applications, which requires a medium-capacity computing power and relatively high quality graphic capabilities. Workstations usually come with a large high-resolution graphic display, large amounts of RAM, integrated network support and a graphical user interface. Most workstations also have a disk storage device as a disk drive, but a particular type of workstation, which is called diskless workstation, comes without a disk drive. Generally workstations are added to create local area networks, although they can also be used as an independent system.
This is a medium sized computer. In the last decade, the difference between large minimunites and small mainframes has been reduced, however, there is a difference between small MiniComputer and workstation. But in general, a minicomputers are multiplexing systems capable of supporting more than 200 users simultaneously.
4) Super Computer:
Supercomputer is one of the fastest computers available today. Supercomputers are very expensive and are used for special applications that require high amounts of mathematical calculations (number processing). For example, a super computer is required to predict the weather. Scientific uses of simultaneous computer simulations, graphics (animated), dynamic fluid count, atomic energy research, electronic design and geological data analysis (in petrochemical investigation) are other uses
Types of Personal Computer
1) Tower Model:
This term refers to a computer in which power supplies, motherboards and mass storage devices are placed on top of each other in the cabinet. This is in contrast to desktop models, in which these components are stored in a more compact box. The main advantage of the tower model is that the consumption of space reduces, which facilitates the installation of additional storage devices.
2) Desktop model:
A computer is designed to stay at a desk comfortably. Desktop model computers are big and small, while tower computers are narrow and long. Due to their size, desktop model computers are usually limited to three internal storage devices. Very small design model is sometimes known as the Slimline model.
A very light personal computer Laptops usually weigh less than 6 pounds and are too small to fit easily in briefcases. Apart from the size, the main difference between the laptop and the personal computer is the screen. Laptops use a variety of technologies, which are known as flat panel techniques, the quality of the laptop screen is quite different to produce a lightweight, non-weighted display screen. In terms of computing power, modern laptops are almost the same as the personal computer. They have the same CPU, memory capacity and disk drive. However, this is a little expensive in small packages. The cost of laptops is almost double the size of the normal computer. Laptops come with a battery that allows you to run without having to plug them in. However, the battery needs to be recharged every few hours.
A small portable computer, so small that it can sit in your lap. Nowadays, laptops are often called laptops.
In the first computers of the twentieth century, some famous people needed the whole room. These days, by taking a lot of processing power in your pants pocket. Handheld computers like smartphones and PDAs are one of our age recognized devices.
Until the 1990s, Personal Digital Assistant (PDA) was an integrated computer that used flash memory instead of hard drive for storage. These computers usually did not have a keyboard, but the user rely on touch screen technology for input. PDA pockets were smaller than novels, which were very light and with enough battery life. For some time, they were tools for calendar tasks, emails and simple messages. Do you remember Palm Pilot and Blackberry?
But as soon as the Smart Phone Revolution started, the PDA lost its luster. Smartphones like iPhone and Samsung Galaxy have full potential of computers, as well as calling and PDA functions. These include touch screen interface, high-speed processor, many gigabytes of memory, total connectivity options (including Bluetooth, Wi-Fi and more), dual-lens cameras, high-quality audio systems and other features that are effective for electronics dado Are.
Features / Characteristics of Computer
High Storage Capacity
Power of Remembrance (ability to remember)
Parts of Computer
All the processes in computer’s input, storage, processing and output include all the components of any computer system that have been explained to you in turn …
Input: Every time you type with a keyboard or click with a mouse, you are giving input to the computer that the computer then processes. You can also input a computer from a microphone. Some examples of input devices …
Memory / Storage: When you make a document, it is first stored in RAM, which is a temporary memory. When you save the document, they are stored on permanent memory such as a hard drive.
Processing: Your computer’s processor (sometimes known as CPU-central processing unit) is a microchip, which is located on the motherboard and processes all inputted data with your help.
Output: You can view or print the computer output on your monitor or print it. There are monitors and printer output devices. some examples of output devices …
The system unit is a box in which the computer is equipped with the equipment necessary to do its job. System Unit ‘C.P.U. It is also called. It has a motherboard, a processor, etc. that works for the computer to work. It is also called a case.
Monitor is an output tool that shows the results of the instructions that we receive. This is exactly like television. Currently, the monitor has been replaced by LCD and LED.
Keyboard is an input tool used to give instructions to the computer. With this help, the computer receives the desired data and instructions. Different types of keys, data, and instructions are passed through the computer.
Mouse is also an input device whose purpose is to instruct the computers. We select the programs available on it by computer.
The speaker is an output tool that helps us hear the computer’s voice. Through these we listen to the sounds available in songs, movies, programs and games etc.
The printer is also an output tool used to obtain information analyzed by the computer on paper. The information received on paper is also called ‘hard copy’. And, conversely, the information stored in the computer is called “software copy”.
what have you learned?
In this article do you teach that you know what a computer is? How many types of computers are there? You also know about different parts of the computer. We hope you will get acquainted with the computer after reading this lesson.