How to write the essay Computers in Fifty Years ?

Essay: Computers Fifty Years Later.

Fifty years ago, people operated mainframe computers, relied on flashing lights to read out data, and stored data on tape. 10 years ago, everyone was still very new to win95, but they just knew what it was"dir";"cls"to save the data on disk. Well you imagined.

What will computers look like in fifty years? Follow the time machine back to a computer fifty years later.

Hey, what is it?

We saw rows of machines the size of books appear in front of us. Could it be that this is .........While I was still hesitating, one of the docents told us, "This is the light brain."

The optical brain is a computer made of optical fibers and various optical elements. It is not like an ordinary computer that relies on the flow of electronic channels to process information, but relies on a small beam of low-power laser to enter the optical circuit composed of mirrors and lenses to "think", but it also has the functions of storage, calculation and control. As the narrator narrated, I couldn't help but sigh

Technology is advancing so fast.

The size of the "ability" of the computer is mainly determined by two factors: first, the running speed of the computer components; The second is how closely they are arranged. In both respects, light is much superior to electricity.

Photons are the fastest thing in the universe, reaching 300,000 kilometers per second. Electrons, which move at a speed of about 60-500 kilometers per second in semiconductors, are less than one-tenth of the speed of light. In addition, in ultra-large integrated circuits, some chip devices have more than 300 pins, and the arrangement density is limited.

The beams of light can pass through each other without interfering with each other, which allows scientists to open up many information channels in a very small space. For example, Bell Labs' optical converters can be so small that they can fit more than 2,000 channels in a device less than 2 millimeters in diameter. ”

The optical brain is thousands of times faster than the computers of 50 years ago; Secondly, the photobrain device also has the advantage of a large amount of information, and a beam of light can transmit thousands of channels of information at the same time. ”…

After completing the journey of time machine travel and returning to reality, I believe that although there are still many problems in the manufacture of optical brains that have not been solved theoretically and technically. But perhaps it will not take 50 years for scientists to take advantage of the small driving energy of the optical brain to combine the electronic converter with light to create a kind of computer that "hybridizes" light and electricity - the optical brain.

Fifty years later, human beings can be said to be extremely intelligent, with an IQ of more than 200, and they have created all kinds of machines to bring great convenience to their lives.

They have invented a wide variety of machines with complete functions, such as "housekeeping robots" that can help you clean your room and help you cook; The "super computer" can rely on it to look up any information, play any game, chat with anyone, and even more amazingly, as long as you say the key words to it, the screen can immediately display the ...... of what you wantAll in all, fifty years later, human technology is very advanced, even in the morning to wash your teeth, there are machines to help you, you just need to stand by the pool.

Fifty years later, the most advanced machine can be described as the "lightspeed teleportation chair", which can take you anywhere you want to go in a very short time, as long as you say the name of the place to the "smart microphone" on the chair, and sit on the chair and fasten your seatbelt, the chair will send you to your destination at the speed of light at 300,000 kilometers per second. Even if you get motion sickness, don't worry, as long as you press the red button next to you before departure, the chair will spray non-toxic and harmless anti-motion sickness gas, which can ensure that you do not get motion sickness, so as to complete a pleasant journey. In addition, this chair also has an automatic recognition function, if it is used by bad people to do bad things, the chair will identify and judge, and change to automatic control mode, no longer follow the bad guy's command, but directly send the bad guy to the Interpol center.

The chair is 5 million yuan, which is not only appropriate and functional, but also strong and durable, and not easy to be damaged.

Fifty years from now, all human beings will be inventors, and they will create all kinds of machines to make human life more convenient and faster; Fifty years later, human beings are also environmentalists, they pay attention to energy conservation, pursue low-carbon life, and turn the earth into an ecologically balanced green planet, which is more dazzling in the solar system.

The computer is the king of all household appliances. Computers are the tools you need to work. Computers can entertain us; The computer can search for information on the Internet; Computers can help us learn; The computer can chat ...... on the Internet

In the past, computers could not access the Internet and could only do simple calculations. But now it's different, not only can you surf the Internet, but you can also send email! E-mail is much more convenient, faster, more economical, and more secure than writing letters.

In today's big world, there are more than one production of computers, all brands, and there are too many LG Haier to count. And that's not all! If you look at the size of today's computers, it's just ......Recall that the world's first computer was the size of a football field.

Look at it now, computers are as thin as a book. Compared to the two, there is really a world of difference.

Having said all that, I still don't know the shape and usage of computers! The exterior color of the computer is generally silver, gray, and black. A computer is a combination of a host, keyboard, display, mouse, audio, etc.

If you want to open any file on the display, you can double-click with the mouse in your right hand to open the file you want. If you want to type something or want to type into the computer, then you need to use a keyboard. There are 26 English letters and some numbers on the keyboard, as well as functions. As soon as you want to type, you press those 26 letters; If you need a number, just use the number you want.

As long as you study hard, no matter how difficult it is, you can overcome it!

How amazing computers are! It provides convenience for people and adds endless fun to people's lives!

In the near future, people's lives will change greatly, as well as people's clothing, food, housing and transportation, and even there will be unmanned cars to help us safely and quickly, without us having to control to reach the destination. In addition, there will be spaceships that can take us to other planets, although it is far away from us. In addition, there will be supercomputers that can help us calculate all kinds of data, and I look forward to it in the future.