1.computer的基本意思是“计算机”,也可译作“电脑”。
2.computer是可数名词。

computer bug
计算机程序错误 error in a computer program
I couldn't run the program because it contained a computer bug I could neither identify nor cure.我不能使用这个程序,因为它有一个我既不能识别又不能纠正的程序错误。

on a computer
用计算机 using a computer
He ran a program on a computer.他用计算机编出一个程序。

The computer controlled the rocket firing.计算机控制火箭引擎的发动。
The computer reproduces the data as a set of diagrams.这台计算机使这些数据再现为一系列图表。
The computer costs ten thousand yuan.这台计算机值1万元。
Computers have changed the world.计算机改变了世界。
The language this computer uses is BASIC.这台计算机使用的是BASIC语言。
We use a computer to do our accounts.我们用计算机进行结算。
You are not quite accurate when you call a computer an electronic brain.你把计算机叫“电脑”并不很准确。
He employed ten workers to sell computers.他雇用了10名工人卖计算机。
There is an essential difference between computers and humans.电脑与人之间有着很大的区别。
The entire process is done by computer.整个过程由计算机操纵。
The missile was automatically launched by the computer.这枚导弹是通过计算机自动发射的。
He agreed to pay the price demanded for the computer.他同意付给这台计算机的要价。
Is the information available on the computer?计算机内有该信息吗?
The children grouped round an electric computer.孩子们都聚集在一台电子计算机周围。
Derek is out of his depth with new computer.德列克不会操作这台新计算机。
Harry aims to become a computer expert. 哈利立志成为一名计算机专家。
How people design computer games is beyond me.我难以想象人们是怎样设计计算机游戏的。
He is an expert at computer science.他是一位计算机科学专家。
He is in the hire of a computer company.他受雇于一家计算机公司。
They employed a consultant to appraise the relative merits of the two computer systems.他们聘请了一位顾问来评定两种电脑系统的相对优点。

computer, calculator
computer指“计算机”,而“计算器”则是calculator,不应混用。
computer, commuter
这两个词词形相近,但意思不同。commuter指使用月、季票每天来往于两地之间的人,意即“通勤者”; computer意为“计算机”。例如:
The commuters have the privilege to take free buses.拥有月、季票者就有权免费坐车。
They exported computers to China.他们向中国出口计算机。
下面两句的意思相同:
We do something using a computer.
We do something by computer.
我们用计算机做某事。

［词源］  ＜拉丁语computare(计算,估计)