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Read and translate the text. Optical disks can store information at much higher densities than magnetic disks

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  1. A) Read the following text.
  2. C. Find an appropriate equivalent for each modal verb in the articles from the contract below and translate them faithfully into Ukrainian.
  3. Copy out from Text Five the sentences containing the word combinations and phrases and translate them into Russian.
  4. Copy out from Text One the sentences containing the word combinations and phrases and translate them into Russian.
  5. Exercise 4. Translate into English.
  6. Exercise 8.6. Which of the listed below statements are true/false. Specify your answer using the text.
  7. Exercise I. Analyse the semantic structure and translate the following English simple and compound words into Ukrai-
  8. Exercise II. Definite the ways in which the Ukrainian units of the national lexicon are translated (or should be translated) into English.
  9. Exercise III. Analyse the Ukrainian sentences containing optative, incentive or subjunctive modality and translate them into English.
  10. Exercise III. Read carefully the sentences containing some American/British nationally peculiar notions and translate the sentences into Ukrainian.
  11. Food packaging. Read and retell the text.
  12. Food processing. Translate the text into your own language

Optical disks can store information at much higher densities than magnetic disks. Thus, they are ideal for multimedia applications where images, animation and sound occupy a lot of disk space. Besides, they are not affected by magnetic fields. This means that they are secure and stable, e.g. they can be transported through airport metal detectors without damaging the data. However, optical drives are slower than hard disks.

While there are hard drives with an average access time of 8 milliseconds (ms), most CD-ROM drives have an access time of 150 to 20 ms. There are various types of optical drives, which have become a reality.

CD-ROM systems use optical technology. The data is rewritable using a laser beam. To read CD-ROM disks, you need an optical drive (a CD-ROM player). A typical CD-ROM disk can hold 650 MB (megabytes) of sound, text, photographs, music, multimedia materials and applications. In addition, most CD-ROM drives can be used to play audio CDs. Do you remember that CD stands for compact disk?

Yet CD-ROM technology has one disadvantage. The data on a CD-RОМ cannot be changed or “written” to, i.e. it is impossible to add your own material to what is on the disk. It is like a music CD. It is not designed for you to write on, it is designed to hold a lot of information that the user doesn't need to change.

Magneto-optical (MO) drives use both a laser and an electromagnet to record information. Consequently, MO disks are rewritable, that is they can be written to, erased, and then written again. They are available in two formats. Their capacity may be more than 2 GB (gigabyte) or 230 to 640 MB. Such combined devices are good for back up purposes and storage of large amounts of information such as a dictionary or encyclopedia.

 

3. Answer the following questions:

 

1. What can optical disks be used for?

2. What are their advantages and disadvantages?

3. How can data be retrieved from a CD?

4. What are CDs designed for and their disadvantage?

5. What is the other type of disks and what is their capacity?

 

4. Give English equivalents:

 

оптический диск, сохранять информацию, быть подверженным чему-либо, время доступа, становиться реальностью, обозначать.

 

5. Give Russian equivalents:

 

Rewritable, secure, density, multimedia materials, consequently, optical drives.

 

6. Match up:

to store data
to be affected for
to damage information
to stand purpose
back up by

 

 

7. Translate:

 

1. Это означает, что они защищены и неизменны, т.е. их можно проносить через металло-детекторы в аэропорту без повреждения записанной на них информации.

2. Существуют различные типы оптических приводов, которые стали реальностью в наше время.

3. Магнитно-оптические приводы используют лазер и электромагнит для записи информации.

 

 


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