What's the difference between a computer and a tablet?

The difference between a tablet computer and an ordinary computer lies in its low configuration. In fact, it is also possible to use a keyboard (you can use a wireless keyboard).

But only if it is a tablet. Most of the publicity on the market now is not tablet computers. For example, Apple's ipad, domestic flying touch and E-Man's e-books are actually not tablets. Because the concept of tablet computer was put forward by Bill Gates, it must be an X86-based system that can run X86 versions, such as windowsXP linux MAC and so on. Apple's ipad is an ARM architecture, which can only be regarded as an oversized PDA, and Jobs never said that IPAD is a computer. There is also an e-person, which is an Android system and cannot be regarded as a tablet computer. At best, it is a big mobile phone. Now the tablets on the market are Cool Run and Hanwang! Moreover, the price of tablet computers is relatively expensive, which is basically 4000-7000 yuan, and the configuration is far less than that of 1000 yuan desktop computers and 2000 yuan netbooks. One of the high prices of tablet computers is the hard disk. Hard disks of tablet computers are basically solid-state hard disks, and the price of solid-state hard disks is much higher than that of ordinary hard disks. So if it's not for the portable desktop, it's enough. Netbooks are also a good choice if they are portable. If you really can't help it or you like it, buy a tablet.

Tablet computer

Tablet PC, also known as Tablet PC (English: Tablet PC, Tablet PC, Slates), is a small portable personal computer with touch screen as the basic input device. Its touch screen (also known as tablet technology) allows users to do their homework with a stylus or digital pen instead of a traditional keyboard or mouse. Users can input through the built-in handwriting recognition, on-screen soft keyboard, voice recognition or real keyboard (if the model is equipped).

Tablet PC was put forward by Bill Gates, and should support the chip architecture of X86(intel, AMD) and ARM. Tablet computers can be divided into ARM architecture (representative products are ipad and android tablet) and X86 architecture (representative products are Surface Pro). The latter X86 architecture tablet computer generally adopts Intel processor and Windows operating system, and the computer and tablet are fully functional and support exe programs. With the rapid development of communication technology, the development of tablet computers is changing with each passing day. As a new technology, CDMA and CDMA2000 are rapidly sweeping the world and have occupied 65,438+08% of the wireless market. By the end of 20 12, the number of CDMA2000 users worldwide had exceeded 256 million, and 156 operators in 70 countries had commercialized 3G CDMA services.

Judging from the concept product of tablet computer put forward by Microsoft, tablet computer is a fully functional PC that needs no flip cover and keyboard, and is small enough to fit into a lady's handbag.

Functional characteristics

Tablet PC is a LCD screen with touch recognition, which can be written by electromagnetic induction pen. Tablet PC integrates mobile commerce, mobile communication and mobile entertainment, and has the functions of handwriting recognition and wireless network communication, so it is called the terminator of netbook.

According to the structural design, tablet computers can be roughly divided into two types, namely "variable tablet computers" with integrated keyboards and "pure tablet computers" with external keyboards. Some new applications are built into the tablet computer itself, and users can input words or hand-drawn graphics into the computer as long as they write on the screen.

Tablet computers can generally be divided into resistive touch screens and capacitive touch screens according to their different touch screens. Resistive touch is generally a single point, while capacitive touch screen can be divided into 2-point touch, 5-point touch and multi-touch. With the popularity of tablet computers, the pursuit of functions is getting higher and higher. Traditional resistive touch can no longer meet the needs of tablet computers, especially in playing games. Therefore, the tablet computer must use multi-touch screen to make its functions more perfect.

superiority

1. Tablet computers have distinctive features in appearance. Some are like an independent LCD screen, only a little thicker than the general display screen, and equipped with necessary hardware equipment such as hard disk.

2. The unique Windows XP operating system of tablet computer not only has the functions of ordinary Windows XP, but also the applications compatible with ordinary XP can be run on tablet computer, which increases handwriting input and expands the functions of XP.

3. Expand the use of PC, and use a special "pen" to operate on the computer, which becomes as simple as using a pen and paper. At the same time, it also supports keyboard and mouse, which can be operated like a normal computer.

4. Portable mobile, as small and light as a notebook computer, can transfer the place of use at any time, and has mobile flexibility than a desktop computer.

5. Take digital notes, take several tablets, just like PDA and PDA, make ordinary notebooks, take notes at any time, and create words, charts and pictures by yourself. At the same time, integrate electronic "ink", use ink in core Office XP applications, and keep your own handwriting in office documents.

6. Personalized use, using tablet computer and pen setting control, you can customize personalized tablet computer operation, calibrate pen, set left-hand or right-hand operation, and set buttons of tablet computer to complete specific tasks, such as opening applications or switching from landscape screen to vertical screen direction.

7. Convenient deployment and management. Windows XP Tablet PC Edition contains advanced deployment and policy functions in Windows XP Professional, which greatly simplifies the deployment and management of Tablet PC in enterprise environment.

8. Global business solutions that support multiple languages. Windows XP Tablet PC Edition has localized versions in English, German, French, Japanese, Chinese (simplified and traditional) and Korean, and more localized versions will come out soon.

9.Windows XP Tablet PC Edition provides the highest level of protection for critical data, and provides all the security functions of Windows XP Professional, including encrypting file system and access control. The tablet also provides a special CTRL+ALT+DEL button for users to log in safely.

The biggest feature of tablet computer is its digital ink and handwriting recognition input functions, as well as its powerful pen input recognition, voice recognition and gesture recognition functions, as well as its mobility.

disadvantaged

1. Because the screen rotating device needs space, the "performance-to-volume ratio" and "performance-to-weight ratio" of tablet computers are different from those of traditional notebook computers.

2, decoding-programming language is not conducive to handwriting recognition.

3. Typing (students do homework and write emails)-Handwritten input is too slow compared to the typing speed of 30 to 60 words per minute.

4. In addition, the tablet computer without keyboard (pure tablet) can't replace the traditional notebook computer, and it will increase the difficulty for users (beginners and experts) to use computer technology. A pure tablet computer is the second computer that people often use to make records or teaching tools. However, the rotatable tablet computer-the one with keyboard-is an ideal and powerful substitute for traditional computers, especially for those students who need to copy notes.

Computer?

Computer, commonly known as computer, is an electronic computer for high-speed calculation, which can be used for numerical calculation, logical calculation and memory storage. It is a modern intelligent electronic device that can run according to the program and automatically process massive data at high speed. It consists of hardware system and software system, and a computer without any software is called bare metal. It can be divided into five categories: supercomputer, industrial control computer, network computer, personal computer and embedded computer. More advanced computers include biological computers, photonic computers and quantum computers.

Its main feature is fast operation speed.

At present, the operation speed of computer system has reached trillions of times per second, and the microcomputer can reach hundreds of millions of times per second, which has solved a lot of complicated scientific calculation problems. For example, the calculation of satellite orbit, dam and 2 4-hour weather forecast. In the past, manual calculation took years and decades, but now it takes only a few days or even minutes to complete with a computer.

High calculation accuracy

The development of science and technology, especially the development of cutting-edge science and technology, requires highly accurate calculation. The reason why the missile controlled by computer can accurately hit the intended target is inseparable from the accurate calculation of the computer. The average computer can have a dozen or even dozens of significant bits (binary), and the calculation accuracy can range from a few thousandths to a few millionths, which is beyond the reach of any calculation tool.

Have the ability of logical judgment.

With the increase of computer storage capacity, more and more information can be stored and memorized. Computers can not only calculate, but also save data, programs, intermediate results and final results for users to call at any time; You can also perform arithmetic and logical operations on various information (such as language, characters, graphics, images, music, etc.). ) through coding technology, even reasoning and proof.

Have the ability of automatic control.

The internal operation of the computer is automatically controlled according to people's pre-programmed programs. According to the needs of solving problems, users design the running steps and programs in advance, and the computer runs in strict accordance with the programs, and the whole process does not need manual intervention.