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Предоплата всего
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Вариант 3
I Заполните пропуски соответствующими предлогами, расположенными справа. Переведите предложения на русский язык.
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1 The control unit fetches (gets) the instruction … memory. |
for, from, in, without, before |
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2 Delphi is a programming environment … developing programs. |
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3 Viruses can hide themselves … a computer system. |
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4 Don’t use a floppy … checking it. |
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5 Always virus-check an email attachment … opening it. |
II Заполните попуски прилагательными в соответствующей форме сравнения (положительной, сравнительной, превосходной). Используйте, где необходимо, другие способы выражения сравнения в английском языке (конструкции с парными союзами as…as, not so… as, the… the, much + сравнительная степень прилагательного). Переведите предложения на русский язык.
1 New computers are … and sometimes … than older machines (fast, cheap).
2 Laptops are often … than PCs but they are … (expensive, powerful).
3 A floppy disk is … (slow) … a magnetic tape.
4 Removable hard disks are much … than magneto-optical disks (expensive).
5 Laptops are not … (powerful) … PCs.
6 The … classes in computing you have, the … you know a computer (many, good).
III Заполните пропуски глаголами в соответствующей грамматической форме (Present Simple, Past Simple, Future Simple). Переведите предложения на русский язык.
1 Nowadays designers seldom … drafting boards (to use).
2 How long … your classes (to last)?
3 A subnotebook … about the size of a piece of writing paper (to be).
4 ROM … all the instructions your computer … to activate (to contain, to need).
5 The more memory chips you …, the more work you … to do at a time (to have, to be able).
6 You … Hardware next year (to study)?
7 What usually … in Programming class (to happen)?
8 When … your System analysis class yesterday (to be)?
IY Перепишите предложения. Определите в них сказуемые и, где необходимо, измените временную форму, используя времена группы Simple или группы Continuous. Переведите предложения на русский язык.
1 Right now I try to learn how to use Active Server properly.
2 When I entered his room he looked for a missing floppy disk .
3 Many more people join the Internet in the coming years.
4 At the present days we are installing Smart Cards to save your life in ambulances and in hospital emergency rooms.
5 We will often be using a string list in our text file.
Y Перепишите предложения. Поставьте сказуемые группы Perfect и Perfect Continuous в соответствующей грамматической форме (Present Perfect, Past Perfect, Future Perfect, Present Perfect Continuous, Past Perfect Continuous, Future Perfect Continuous). Переведите предложения на русский язык.
1 We (to test) the program before the teacher came.
2 By 2012 scientists (to develop) active contact lenses.
3 I (to compile) the program for an hour when you came.
4 The capacity of PC (to increase) steadily.
5 I (to send) sent a video email attachment to my friend this morning.
YI Запомните следующие слова.
computing technology- вычислительная технология
a chip – микросхема, интегральная схема
a micro-machine- микропрограммируемая (вычислительная) машина
an application - применение, пакет прикладных программ
a sensor – датчик, сенсор, чувствительный элемент
a strain sensor - тензодатчик strain sensor single chip-sized package -
a gyroscope – гироскоп, гиродатчик
a sci-fi application- (прикладная) система для научных исследований
power – мощность, энергия, способность
to create - создавать
YII Прочитайте текст и письменно переведите его на русский язык.
Robotics
What is a micro-machine?
One of the most important steps in computing technology in the coming years is likely to be a return to mechanical methods. Using the same process used to create chips, it’s possible to fabricate mechanical parts – levers, gear wheels, and small motors.
The best known example of a micro-machine was created by Sandia Laboratories in New Mexico in the US. It’s a complete motor developing 50 mW of power in one square millimeter – still a bit big for some of the micro-machines planned for the future.
What are micro-machines going to be used for? Obvious applications are sensors, gyros and drug delivery. The idea is that a micro-machine could have a strain sensor or a gyroscopic attitude sensor and electronics built into a single chip-sized package. The idea of using a micro-machine to deliver drugs is getting a bit closer to more sci-fi applications. Only a step further is the idea of building insect-sized robots that could do difficult jobs in very small places. Swallowing an ant-sized machine to cure you or putting one inside some failed machinery seems like a really good idea!
YIII Прочитайте внимательно текст и ответьте на следующий вопрос.
Magnetic tape is a cheap medium. You can use it to store very large amounts of data, but it does not allow random access. Every time you read or write a piece of data, you start at the beginning of the tape. Tape drives are slow. Therefore, it is only suitable for doing backups.
What are the disadvantages of magnetic tape?