ComputersEquipment

Why do we need computers? Areas of application of the computer. The very first computer

Who among us did not think about the purpose of the computer? How much this "robot" does for us, helps us both on a working day and on a day off! How much time we devote to him, but how much and save! A computer is a device that is firmly rooted in our lives, helps us to perform the simplest and most difficult tasks, entertains and develops.

What is it?

How often do you think about why you need computers? Few people fully understand the whole array of tasks on which these "machines" work. But where did they come from and how quickly did they enter our life? A computer from English is translated as "calculator". This function was the very first task of the device. Roughly speaking, at first the machine served as a calculator.

Now such a mechanism is able to perform certain tasks. It is believed that most of these tasks are computational or manipulative. But recently, with the development of social networks, the important function is the input-output function. To ensure that all operations are performed with the correct sequence, use a program that is specifically created for this.

History

In general, remembering the very first computer, historians go deeper into the analysis of the events of the times of Ancient Babylon. It was then that the first variations of calculations were invented-abacus accounts. But if you do not go too far, you can go back in time for less than 100 years. It was in 1941 that the world saw the first such device. It was developed by the American mathematician from Harvard Howard Axon.

He and a couple of engineers from IBM created the very first computer based on the developments of Charles Babbage. Officially, the car was launched only in 1944. She was given the name "Mark 1". We placed the technique at Harvard University.

It is interesting that at that time 500 thousand dollars were spent on developing such a PC. At the same time, the computer was assembled from expensive and high-quality materials. The mechanism was placed in stainless steel and glass. In length, the device took more than 17 meters, its height was about 2.5 meters. Corresponding to these parameters, the weight of the equipment was more than 4 tons. To bring the computer into operation, it was necessary to use various levers, relays, switches, which had more than 750 pieces.

It is interesting that the car got wires, the length of which was 800 kilometers. Nevertheless, a powerful computer performed fairly primitive tasks. He coped with a limited number of numbers - only 72, they consisted of 23 decimal places. The system could subtract and compose and spend on these all processes no more than 3 seconds. To multiply it it took 6 seconds already, division was performed in 15 seconds.

As a result, scientists managed to obtain an improved calculator for which perforated paper tape was used to enter data. Despite his obvious weakness over the current technical monsters, he still did all the calculations without the help of a human, which means that there has already been a huge step towards automation.

Other theories

In general, the fact that "Mark 1" is the first computer, the case is controversial. On this account, there is a huge number of theories. Here, Conrad Zuse with his Z1 car, which was created back in 1938, is often remembered. Also known is the first electronic digital computer from the US, which was spoken about in 1942. Although not completely finalized, it could still be a prototype and inspiration for subsequent machines.

Diversity

When a person poses the question: "Why do we need computers?", He often presents a standard PC version or, in extreme cases, a laptop. But this is only a small part of the devices under that name. Among other things, desktop PCs can be divided into home and server, there are workstations, personal options, monoblocks, game consoles, media centers, etc.

To computers carry and more simplified devices, among which netbooks, tablets, nettops. There are supercomputers, which include mini, supermini, personal and mainframe. The latter option is a very powerful computer designed for high-performance and resource-intensive tasks. It usually has a huge amount of operational and external memory, the device is used for batch processing and other tasks.

To small and mobile computers belong all of us favorite smartphones, laptops, pocket personal computers, tablets, e-books and so on. Many forget that the terminal in restaurants and shops is also a computer, like an electronic translator, a calculator, etc.

From such a huge number of devices it becomes clear that their purpose can be very different and sometimes quite unexpected.

Design

For all the improvement time, modern machines have acquired a variety of design methods. Building a computer that many users have is almost nothing compared to the design of server stations and similar powerful models. Nevertheless, there are certain standards and algorithms for collecting all types of computers.

When people start thinking about designing a device, they often think about whether this is a digital type machine or an analog system. For the first variant, discrete numerical or symbolic variables are applicable. The analog type is designed to handle a large flow of information. Naturally, the first option is most popular among users.

To analogue now it is necessary to carry nomograms, logarithmic rulers, astrolabes, oscilloscopes, TVs and even a brain.

Application

Returning to the main topic of the article "Why You Can Use a Computer", it is important to understand that it is still difficult to investigate the full range of tasks it performs. And it is unlikely that all the current processes that the computer performs are the limit of its capabilities.

Nevertheless, if we talk about well-known methods of use, the first thing that comes to mind: the PC is in demand for work and for entertainment. The latter is now especially popular, and together with the educational component it helps many students to automate their education and receive more information.

Entertainment

Everyone remembers about playing chess with a computer. When such an opportunity arose , people were simply amazed at the capabilities of the machine. Then began to introduce various card games and other puzzles. Now cover all the games with one review is unrealistic. In the world there are major tournaments on computer games, which collect fans' stadiums, and prize money exceeds $ 20 million.

About entertainment, we are reminded not only of gaming PCs and laptops, but also game consoles, handheld PCs and smartphones. The latter, of course, have working functions, but they are often used as an entertaining device that helps to pass the time on the road.

In addition to playing chess with a computer and in general a variety of gaming projects, entertainment includes watching movies, videos and TV shows, listening to audio recordings, radio stations or books. Virtual tours to museums, theaters, exhibitions, shows, etc.

Education

Many young people began to forget that the computer, apart from entertainment, is intended for training. This is one of the most important functions that allows you not only to supplement existing knowledge, but also to acquire new ones. So, sitting at the computer, we easily go through distance learning, do self-education, read books, listen and watch video courses, learn various processions and expand our horizons.

The scope of the computer is so diverse that it often intertwines with one another. So, for example, communication and education easily helps us learn new languages or find friends around the world.

Communication

The fact that the PC is used as a means for communication is not worth mentioning. Everybody knows about this. Now, using a computer as a platform for acquaintance and communication, on the contrary, causes certain problems of society. People become addicted to social networks, forums and blogs. Although, if we consider this option on the positive side, the computer really made it easier for us to get acquainted with people from different corners of the globe.

He made communication operational, facilitated the acquisition of data both for work, for study and other tasks.

Job

A computer for work is undoubtedly also an important tool. Now it is difficult to imagine someone from the staff who would not use this device. In the stores, sellers contribute products to the PC, cashless payments through terminals, etc.

Large companies, thanks to computers, set up a working network for data transmission, their quick correction and correction. Some large enterprises are installing on their PC huge system software to manage the company. It is also not surprising to meet a PC on the desktop of a writer, journalist or copywriter, because typewriters have long been out of fashion and have become only an interesting accessory or decoration of the interior.

In the end, if you still do not know why you need computers, then think about how people create images, drawings, edit them, base websites, make up a book, a magazine, a newspaper, various printed materials and electronic formats. How music and movies are created now, how they work with mathematical calculations. Finally, who designs, constructs, draws or programs.

Professions

If we talk about more specific tasks, now almost everyone and everyone can tell you why you need computers and where they are used. So, in military affairs, a missile defense system or a space is controlled by a PC. All physical phenomena or studies of constructed models are developed using automated techniques.

Mathematical, chemical, physical and other analyzes and calculations are carried out by machines. Workplaces have long been automated, not only for those who are involved in calculations, but even for doctors.

Construction at the design stage is also automated and regulated by PC systems. All major events, including competitions, entertainment shows, etc. Are supported by the computer and the people who manage it.

In general, it is very difficult to describe the degree of importance of the PC in the life of every person, society and the state as a whole. Now, wherever you look, we see the computer in different versions. With the advent of the Internet, this mechanism has penetrated our life, for some, it replaced the TV and traditional media, communication with friends and relatives. Others became an indispensable assistant in work and study, and someone - an employer.

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