1.1 Personal Computer(个人计算机)
A personal computer, or PC, is a type of microcomputer designed for the use by only one person at a time. Generally, a PC is a small digital computer constructed around a microprocessor,which is a semiconductor chip that contains all the arithmetic, logic, and control circuitry needed to perform the functions of a computer’s central processing unit ( CPU ).
By 1990 some personal computers had become small enough to be completely portable; these included laptop computers, which could rest on one’s lap; notebook computers, which were about the size of a notebook; and pocket or palm-sized computers, which could be held in one’s hand.
个人计算机简称为PC,是一种专为个人用户设计的微型计算机,一次只能由一个人使用。一般来说,PC是一种以微处理器为中心构建起来的小型数字计算机。微处理器本身是一块半导体芯片,包含各种算术、逻辑、控制电路,用以实现中央处理器(CPU)的各项功能。
到1990年,某些个人计算机已是十分小巧了,完全可以随身携带,如可以放置在膝上使用的便携式计算机,笔记本大小的笔记本电脑,还有可以握在手中使用的袖珍型(或称为掌上型)计算机。
Notebook Computer
Key words:personal computer(个人计算机),microcomputer(微型计算机),digital computer(数字计算机),microprocessor(微处理器),chip(芯片),central processing unit(中央处理器),laptop computer(便携式计算机),notebook computer(笔记本电脑)
常见的计算机品牌:苹果(Apple)、联想(Lenovo-IBM)、戴尔(DELL)、惠普(HP)、方正(Founder)、TCL、海尔(Haier)、清华同方(Tongfang)、宏碁(Acer)、华硕(ASUS)等。