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Electronics in the home - раздел Образование, Времена группы indefinite active Electronics Began At The Start Of The Twentieth Century With The Invention Of...
Electronics began at the start of the twentieth century with the invention of the vacuum tube. The first devices for everyday use were radios, followed by televisions, record players, and tape recorders. These devices were large and used a lot of power.
The invention of the transistor in 1947 meant that much smaller, low-powered devices could be developed. A wide variety of electronic devices such as hi-fi units and portable radios became common in the home.
It was not until 1958 that microelectronics began with the 10 development of ICs (integrated circuits) on silicon chips. This led to a great increase in the use of electronics in everyday items. The introduction of the microprocessor allowed electronics to be used for the control of many common processes.
Microprocessors are now used to control many household items such 15 as automatic washing-machines, dishwashers, central heating
systems, sewing machines, and food processors. Electronic timers are found in digital alarm clocks, water heaters, electric cookers, and microwave ovens. Telephones use electronics to provide automatic dialling and answerphone facilities. New entertainment devices have been developed, such as video recorders and CD (compact disc) players.
In the future, electronics are likely to become even more common in the home as multimedia entertainment systems and computer-controlled robots are developed.
Task 1 Fill in the gaps in this table with the help of the text.
Date Invention Applications in the home
early 20th century
1958 automatic washing-machines,
Task 2 Make a list of ways in which you think electronics may be used in the home in the future.
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