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Professional Terms
专业术语
calculator n.
计算器
notepad n.
记事本
Second, Windows allows you to run multiple programs at one time.
第二，Windows允许用户同时使用多个程序。
A computer with the ability to execute several programs simultaneously is called a time-sharing system.
一台计算机如果具有同时执行多个程序的能力，则被称为分时系统。
Later we will further examine how Windows performs time-sharing.
稍后，我们还要进一步探讨Windows如何进行分时操作，
Third ,Windows is called a desktop system.
第三，Windows被称为桌面系统。
Windows provides many of the abilities normally associated with items on your desk ,such as a notepad ,calculator and calendar.
Windows具有很多处理一般与桌面有关项目的能力，如记事本、计算器和日历。
