Заполните пропуски в инструкции следующими фразами 1_____________________________ just follow some s...: ответ на тест 438947 - Английский язык

Заполните пропуски в инструкции следующими фразами
1_____________________________, just follow some steps. These steps work for computers that have hard disks or floppy disks:
1. 2____________________________ is turned off.
2. Take the MS-DOS master floppy disk out of the protective jacket.
3. Insert this disk 3____________________________.
4. Close the disk drive door.
5. Turn on the power 4____________________________.

Заполните пропуски в инструкции следующими фразами
1_____________________________, just follow some steps. These steps work for computers that have hard disks or floppy disks:
1. 2____________________________ is turned off.
2. Take the MS-DOS master floppy disk out of the protective jacket.
3. Insert this disk 3____________________________.
4. Close the disk drive door.
5. Turn on the power 4____________________________.

Заполните пропуски в инструкции следующими фразами
To start MS-DOS Help and choose a topic from the table of contents
1. 1_________________ at the command prompt: help
The MS-DOS Help table of contents appears.
2. If you 2__________________, click the name of the command you want information about. If the command 3__________________ on your screen, click the arrow at the bottom of the scroll bar on the right side of your screen until the command comes into view.
If you are using a keyboard, press the key that represents the first letter of the command you want information about. 4___________________ beginning with that letter is selected. If this is not the command you want, continue pressing the key until the command you want is selected, and then press ENTER. You can also use the TAB, UP ARROW, DOWN ARROR, PAGE UP, and PAGE DOWN keys to move between topics in the table of contents.

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Communicating has always been an important human activity. It has been responsible for the development of cultures and their evolution or downfall. Until recently, human communication techniques have been limited to the spoken and written words, sign language and forms of artwork. During the industrial revolution new communication techniques began to evolve. Telegraphs, telephones, radios, photographs, motion pictures and television have all been developed in a relatively brief period of time. Communication equipment and techniques are still being developed and improved. Although different methods of communication have been studied for many years, it has only been recently that the process of communicating itself has come under study.

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Teletypewriters are widely used for high speed telegraph communications as well as for transmission of written messages. For economical transmission over long distances it is essential that only a single wire or transmission channel be required to carry the signal. Furthermore, the reliable and efficient operation can be secured by using not more than two conditions on the line, such as current and no current, or positive impulses and negative impulses.

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Real telegraphs were possible until it was proved that electricity and magnetism were connected. It was found that a needle of a compass moved when it was put near а wirе with a current flowing through it. A compass needle is a magnet. If a wire carrying a current could move it, then the wire must be a magnet too.