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Прочитайте текст и выполните задания. A cordless telephone 1. Cordless phones first appeared around ...: ответ на тест 1058554 - Английский язык

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A cordless telephone
1. Cordless phones first appeared around 1980. George Sweigert, an amateur radio operator and inventor from Cleveland, Ohio, is largely recognized as the father of the cordless phone. A cordless telephone is a telephone with a wireless handset that communicates via radio waves with a base station connected to a fixed telephone line, usually within a limited range of its base station (which has the handset cradle). The base station is on the subscriber premises, and attaches to the telephone network the same way a corded telephone does.
2. The base station on subscriber premises is what differentiates a cordless telephone from a mobile telephone. Current cordless telephone standards, such as PHS and DECT, have blurred the once clear-cut line between cordless and mobile telephones by implementing cell handover, various advanced features, such as data-transfer and even, on a limited scale, international roaming. In these models, base stations are maintained by a commercial mobile network operator and users subscribe to the service.
3. Cordless phones can operate without a power cord or cable attached to a fixed electricity supply such as an outlet, generator, or other centralized power source, allowing greater mobility. But unlike a corded telephone, a cordless one needs mains electricity to power the base station. The cordless handset is powered by a rechargeable battery, which is charged when the handset sits in its cradle.
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A cordless telephone is like a cord one …
Варианты ответов
  • because its base station is connected to a fixed telephone line
  • in the way of its appearance
  • in the way of charging
  • in the way of its facilities
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Вопрос задал(а): Анонимный пользователь, 13 Ноябрь 2020 в 18:05
На вопрос ответил(а): Анастасия Степанова, 13 Ноябрь 2020 в 18:05

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Вопрос № 1058558

Прочитайте текст и выполните задания.
A cordless telephone
1. Cordless phones first appeared around 1980. George Sweigert, an amateur radio operator and inventor from Cleveland, Ohio, is largely recognized as the father of the cordless phone. A cordless telephone is a telephone with a wireless handset that communicates via radio waves with a base station connected to a fixed telephone line, usually within a limited range of its base station (which has the handset cradle). The base station is on the subscriber premises, and attaches to the telephone network the same way a corded telephone does.
2. The base station on subscriber premises is what differentiates a cordless telephone from a mobile telephone. Current cordless telephone standards, such as PHS and DECT, have blurred the once clear-cut line between cordless and mobile telephones by implementing cell handover, various advanced features, such as data-transfer and even, on a limited scale, international roaming. In these models, base stations are maintained by a commercial mobile network operator and users subscribe to the service.
3. Cordless phones can operate without a power cord or cable attached to a fixed electricity supply such as an outlet, generator, or other centralized power source, allowing greater mobility. But unlike a corded telephone, a cordless one needs mains electricity to power the base station. The cordless handset is powered by a rechargeable battery, which is charged when the handset sits in its cradle.
Ответьте на вопрос:
What energy does a cordless telephone need for functioning?
Cordless phones can operate without a power cord attached to a fixed electricity supply.
A cordless telephone communicates via radio waves.
The cordless handset is powered when the handset sits in its cradle.
A cordless telephone is charged by electrical energy.

Вопрос № 1058551

Прочитайте текст и выполните задания.
A cordless telephone
1. Cordless phones first appeared around 1980. George Sweigert, an amateur radio operator and inventor from Cleveland, Ohio, is largely recognized as the father of the cordless phone. A cordless telephone is a telephone with a wireless handset that communicates via radio waves with a base station connected to a fixed telephone line, usually within a limited range of its base station (which has the handset cradle). The base station is on the subscriber premises, and attaches to the telephone network the same way a corded telephone does.
2. The base station on subscriber premises is what differentiates a cordless telephone from a mobile telephone. Current cordless telephone standards, such as PHS and DECT, have blurred the once clear-cut line between cordless and mobile telephones by implementing cell handover, various advanced features, such as data-transfer and even, on a limited scale, international roaming. In these models, base stations are maintained by a commercial mobile network operator and users subscribe to the service.
3. Cordless phones can operate without a power cord or cable attached to a fixed electricity supply such as an outlet, generator, or other centralized power source, allowing greater mobility. But unlike a corded telephone, a cordless one needs mains electricity to power the base station. The cordless handset is powered by a rechargeable battery, which is charged when the handset sits in its cradle.
Определите основную идею текста.
A cordless, cord and mobile phones represent quite different kinds of telephones being different in their appearance, way of functioning and facilities.
A cordless telephone has some features of a cord one, its attachment to a fixed telephone line being one of them.
A cordless telephone is a telephone with a wireless handset that communicates via radio waves with a base station connected to a fixed telephone line.
A cordless telephone possessing some features of a cord and mobile ones has a number of distinct favourable features.

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Вопрос № 1058555

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Wireless technology
1. Wireless telecommunications, is the transfer information between two or more points that are physically not connected. Distances can be short, as a few meters as in television remote control; or long ranging from thousands to millions of kilometers for deep-space radio communications. It encompasses various types of fixed, mobile, and portable two-way radios, cellular telephones, personal digital assistants (PDAs), and wireless networking.
2. Wireless operations permit services, such as long range communications that are impossible or impractical to implement with the use of wires. The term is commonly used in the telecommunications industry to refer to telecommunications systems which use some form of energy to transfer information without the use of wires.
3. The world's first wireless telephone conversation occurred in 1880, when Alexander Graham Bell and Charles Sumner Tainter invented and patented the photophone, a telephone that conducted audio conversations wirelessly over modulated light beams. In that distant era when utilities did not yet exist to provide electricity, and lasers had not even been conceived of in science fiction, there were no practical applications for their invention, which was highly limited by the availability of both sunlight and good weather.
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Scientists experimentally proved …

Вопрос № 1058556

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A pager
1. A pager is a simple personal telecommunications device for short messages. A one-way numeric pager can only receive a message consisting of a few digits, typically a phone number that the user is then requested to call. Alphanumeric pagers are available, as well as two-way pagers that have the ability to send and receive email, numeric pages, and SMS messages.
2. The first practical pager was introduced in 1950 by physicians in the New York City area. The first pager system had a range of approximately 40 km (25 mi) and the physicians paid 12 USD per month for the service. The actual pager device was developed and manufactured by Reevesound Company of New York and weighed approximately 200 grams (6 oz).
3. Pagers are still in use today in places where mobile phones typically cannot reach users, and also in places where the operation of the radio transmitters contained in mobile phones is problematic or prohibited. One such type of location is a large hospital complex, where cellular coverage is often weak or nonexistent, where radio transmitters are thought to interfere with sensitive medical equipment and where there is a greater need of assurance for a timely delivery of a message.
Ответьте на вопрос:
When can a pager substitute a mobile phone without any loss?

Вопрос № 1058557

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Wireless technology
1. Wireless telecommunications, is the transfer information between two or more points that are physically not connected. Distances can be short, as a few meters as in television remote control; or long ranging from thousands to millions of kilometers for deep-space radio communications. It encompasses various types of fixed, mobile, and portable two-way radios, cellular telephones, personal digital assistants (PDAs), and wireless networking.
2. Wireless operations permit services, such as long range communications that are impossible or impractical to implement with the use of wires. The term is commonly used in the telecommunications industry to refer to telecommunications systems which use some form of energy to transfer information without the use of wires.
3. The world's first wireless telephone conversation occurred in 1880, when Alexander Graham Bell and Charles Sumner Tainter invented and patented the photophone, a telephone that conducted audio conversations wirelessly over modulated light beams. In that distant era when utilities did not yet exist to provide electricity, and lasers had not even been conceived of in science fiction, there were no practical applications for their invention, which was highly limited by the availability of both sunlight and good weather.
Ответьте на вопрос:
What are the advantages of wireless communication?

Вопрос № 1058558

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A cordless telephone
1. Cordless phones first appeared around 1980. George Sweigert, an amateur radio operator and inventor from Cleveland, Ohio, is largely recognized as the father of the cordless phone. A cordless telephone is a telephone with a wireless handset that communicates via radio waves with a base station connected to a fixed telephone line, usually within a limited range of its base station (which has the handset cradle). The base station is on the subscriber premises, and attaches to the telephone network the same way a corded telephone does.
2. The base station on subscriber premises is what differentiates a cordless telephone from a mobile telephone. Current cordless telephone standards, such as PHS and DECT, have blurred the once clear-cut line between cordless and mobile telephones by implementing cell handover, various advanced features, such as data-transfer and even, on a limited scale, international roaming. In these models, base stations are maintained by a commercial mobile network operator and users subscribe to the service.
3. Cordless phones can operate without a power cord or cable attached to a fixed electricity supply such as an outlet, generator, or other centralized power source, allowing greater mobility. But unlike a corded telephone, a cordless one needs mains electricity to power the base station. The cordless handset is powered by a rechargeable battery, which is charged when the handset sits in its cradle.
Ответьте на вопрос:
What energy does a cordless telephone need for functioning?
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