4. An input device used in computer games for controlling the cursor or some other symbol in its movement around a screen.
5. The software used to view, manage, and access web pages by interpreting hypertext and hyperlink.
6. The basic for creating web pages and sites, the simple coding system made up of “tags”.
7. A space empty of matter.
8. A set of instructions in a computer that changes a computer language known to the computer user into the form needed by the computer.
9. A data stucuture in which memory is allocated as a series of numberred cells.
10. An unformatted text file that contains one or more MS-DOS commands and is assigned a BAT extension.
11. A program designed to be executed from within another application.
12. A generic term for different types of computer system.
13. A remote computer connected to a host or server computer.
14.A concept that when a class of objects is defined, any subclass that is defined can inherit the definitions of one or more general classes.
15. A program that looks for documents that contain specific words or phrases.
（阅读判断）Since World War II, computer scientists have tried to develop techniques that would allow computers to act more like humans. The entire research effort, including decision-making systems, robotic devices, and various approaches to computer speech, is usually called artificial intelligence (AI). Most AI efforts remain in the research labs. A collection of AI techniques that enables computers to assist people in analyzing problems and making decisions, called knowledge-based expert systems, however, has recently proved its value, and numerous commercial applications are now underway. Expert systems are being developed to assist manages with complex hardware, and aid mechanics in troubleshooting locomotive problems.
As recently as 1980, expert systems research was still confined to a few university research laboratories. Today, the
Decide whether the following statements are true (T) or false (F) according to the passage
1） Decision-making system and robotic device are both AI techniques
2） AI techniques enable computers to assist people in analyzing problems and making decisions.
3） Expert system has proved its value since World War II.
4） Expert systems research is still confined to a university research laboratories today.
5) Expert system will earn a good future in commerical application.
（翻译）Today sees the UK launch of a range of hi-tech watches that can pay for a double-shot espresso, a newspaper or a host of other small purchases with a flick of the wrist.
They contain a chip similar to a mobile phone's SIM card that allows you to settle up by tapping the watch on a special terminal at the till.
The "watch2pay" gadgets follow the successful introduction of Quick Tap, a similar system that allows payments using mobile phones, earlier this year.
Available in eight colours, the watches cost £99 and can be used at 70,000 shops in the
Rather than debiting your bank account, they can only spend the money you have topped it up with online – and if the watch is lost or stolen, your account can be cancelled on the phone or over the web.
At first they will only be able to make payments of up to £15, but this limit may be extended depending on their popularity.
A spokesman said: "We think it will be popular because it takes out the fumble factor – you don't have to rummage through your pockets to find it."
Some experts believe that cash could become obsolete within a few years, as so-called "tap and go" technology becomes more widespread and more people use their phones to make purchases, leaving their notes and coins behind.
