4. Ответьте на вопросы:

• Why do secret agencies need to erase by overwriting data many times?

• What device is used to write data on floppy, zip or hard disks?

• How hard disk is arranged?

• What is the shadow data?

• What are the phenomena of shadow data to come about?

• How you can illustrate the mechanical issues of shadow data?

• What is the source of magnetic shadow data?

5. Напишите определения следующих терминов и со­ставьте с ними предложения:

hard disk drive, floppy diskette, zip disk, hard disk, software data, storage space.

6. Соедините слова из левой и правой колонок таким образом, чтобы получить терминологические сочетания:

data placement

device horizontal

alignment storage

head electronic

7. Определите истинность или ложность следующих предложений:

• When computer data is written to a floppy disk, zip disk, hard disk or tape, a mechanical device called a head is used to write the data.

• The information is stored electronically in magnetic patterns of binary ones and zeros.

• Horizontal head straightening and vertical head placement is just the same every time the information is written.

• Multiple writes can guarantee complete removal of legacy data.

• There is only one reason which causes shadow data to come about.

8. Закончите предложения:

• The reasons for these levels of paranoia are ...

4- The information is stored electronically in ...

4 However, it also involves the use of a mechanical device which ...

4 Thus, government agencies require ...

4 The last data that remains on the track is ...

4 ... can not guarantee complete removal of legacy data. 4 ... removes almost all potentials for the forensic recovery of shadow data.

4 ... that was written previously to a track and it is located slightly outside the track’s last recording path.

9. Переведите с русского языка на английский:

В результате, линия будет не прямой, а похожей на удлиненную букву «s». Каждое движение пишущей голов- 1.Ц немного разнится, создавая новый образец этой удли­ненной «s» в границах памяти, выделенной на дорожку.

TEXT № 17

1. Прочитайте вслух и запомните следующие слова.

Слово	Перевод	Предложение
storage devices	устройства- накопители информации	On some storage devices the material consists of iron oxide layers which have been sprayed on the platter of a ... (hard disk drive, floppy disk, zip disk).
layer	слой
overwrite	перезапись	However, multiple overwrites can increase the effectiveness of a ... (security scrub, removing program, write head).
wipe	вытирать, протирать, утирать	Since the write heads path will always vary slightly, within allowable tolerances, it is theoretically impossible to guarantee the secure wipe of a floppy diskette, hard disk drive or tape using a software solution.
overlap	частично покрывать, заходить один за другой, перекрывать	If we were to slice off layers of the asphalt, the original painted line, in some places, will be overlapped with the new color.
extraction	добывание, извлечение, выбор, выборка	The costs of the necessary equipment and the expert staff required to perform the ... (input process, data extraction process, printing process) puts the process beyond the reach of most private sector corporations.

Слово	Перевод	Предложение
furthermore	к тому же, кроме того, более того	Furthermore, some of the "splatter" effect is reduced with the newer ... (hard disk drive, floppy disk, zip disk) technologies because of tighter manufacturing tolerances.
encoding	кодирование, шифрование	As an additional note, older encoding methods, e.g., MFM and RLL, make the recovery of shadow data a bit less difficulty.
incapable	несовместимый	This is because the controllers on the drive either incapable or not set to find shadow data.