Современные компьютерные технологии. ( Modern Computer technologies )

наизусть новые слова).
complex – сложный
to consume – потреблять
consumer – потребитель

to realize – осознать
smart – умный, умно
decade – десятилетие
version – версия
top – верх, вершина
on top of DOS – на основе ДОС
with a click of a mouse – одним щелчком кнопки мыши
multiple users – многочисленные пользователи
simultaneously – одновременно

Systems
When computers were first introduced in 1940’s and

50’s, every programme written had to provide instructions that told the computer how to use devices such as printer, how to store information and how to perform several other tasks.
Today, operating systems control and manage the use of hardware devices such as the printer or mouse and let you store information in files. The operating system also lets you run programmes as the basic word processor. The operating system provides several of its own commands that help you to use the computer.DOS is the most commonly used PC operating system. DOS is an abbreviation for disk operating system.
Windows NT (new technology) is an operating system developed by Microsoft. NT is an enhanced version of the popular Microsoft Windows 3.0, 3.1 programmes. Unlike the Windows, which runs on top of DOS, Windows NT is an operating system itself. The advantage of using NT over Windows is that NT makes better use of the PC’s memory management capabilities.
OS/2 is a PC operating system created by IBM. Like NT, OS/2 is DOS compatible and provides a graphical user interface that lets you run programmes with a click of a mouse.UNIX is a multi-user operating system that allows multiple users to access the system.
The new series of operating systems by Microsoft are Windows Millenium, Windows 2000 and Windows XP.

functions of operating system?
What does the abbreviation DOS mean?
What does

the abbreviation NT stand for?
Who is the developer of OS/2?
What is UNIX?
What other operation systems do you know?

and provides a graphical user interface that lets you run

programmes with a click of a mouse.
… is the most commonly used PC operating system.
… is a multi-user operating system that allows multiple users to access the system.
… is an operating system developed by Microsoft.

UNIX
DOS
OS/2
Windows NT

tomorrow.
that he will be an engineer.
he knows mathematics well.
he would

be a good specialist.
he has translated the text.
he had passed his exams.
he knew English well.

.

He thinks
He said
He says l.
He thought