think this because the Internet allows the computers to send and receive data and email across the world.

曙光3000巨型计算机

A computer is now almost always an electronic device. It usually contains materials which are toxic; these materials will become toxic waste when disposed of. When a new computer is purchased in some places, laws require that the cost of its waste management must also be paid for. This is called product stewardship.

In some countries old computers are recycled (melted down) to get gold and other metals. This is dangerous, because this procedure releases the toxic waste into the water and soil.

Computers become obsolete quickly. Very often they are given away and new ones replace them within two or three years. This makes the problem worse. Computer recycling is thus common. Many projects try to send working computers to developing nations so they can be re-used and will not become waste as quickly.

Computer jargon 计算机行话

Computer jargon means words to do with computers and surrounding topics. Knowing what these words mean can help you know more about computers. Some people use these words to impress other people (Also known as buzzwords).

Examples of jargon:

Bit - The smallest data unit, can either be a "0." or a "1.".

Byte - unit of data. See also Kilobyte, Megabyte, Gigabyte and Nibble

CPU -Central Processing Unit, Another name for processor

Data - Information stored on a computer

Disk - A place to store data.

Email - Electronic mail.

GHz - Gigahertz. Used often incorrectly to describe the speed of a processor. But with some 2.4 GHz processors faster than 3.6 GHz ones, it is clear that it is just a salesman trick.

Load - Get data from a disk

Nibble - Half a Byte

Save - Put data on a disk

RAM - random-access memory(随机存取存储器), the more the better.

USB - Universal Serial Bus（通用串行总线，一种简化了插接多种附件的薄型插座）

WWW - World Wide Web, part of the Internet