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Презентация на тему по английскому языку на тему Modern television

The biggest developments in TV tech.
Modern televisionУчитель английскогоязыка Павловская В.И. МБОУ»СОШ №46» г.Братск The biggest developments in TV tech. The beginning of TV historyTV history was made 92 years ago when Cathode ray tube  CRTEach CRT set has a vacuum tube Digital televisionFor the viewers, watching digital TV meant retuning an existing High definition  A higher resolution picture has more lines and is much 3D In the early 2010s 3D television was being pushed as LED TV In the mid 2010’s LED(светодиодная подсветка) screens became popularThere Smart TVs Television sets dubbed ‘smart’ TVs have built-in internet connectivity. OLED TV sets are a variation on LED, but without a Video on demand Video on demand lets you choose exactly what Ultra HD or 4KThe advantage of such a high resolution is in A powerful source of entertainment and informationSome people prefer to spend their CommercialsTV viewers dislike a TV commercial.They sure it can spoil the impression of any programme. Thank you!
Слайды презентации

Слайд 2 The biggest developments in TV tech.

The biggest developments in TV tech.

Слайд 3 The beginning of TV history
TV history was made

The beginning of TV historyTV history was made 92 years ago

92 years ago when on May 26th 1927 John LogieBaird

publically demonstrated television.
In 1928 the Baird Television Development Company (BTDC) completed the first trans-Atlantic television transmission, between London and New York

Слайд 4 Cathode ray tube
CRT
Each CRT set has a

Cathode ray tube CRTEach CRT set has a vacuum tube

vacuum tube with electron guns that beam red, green

and blue electrons onto a phosphor screen.
The rays scan the dark screen, building up thousands of red green or blue dots to create picture.

Слайд 5 Digital television
For the viewers, watching digital TV

Digital televisionFor the viewers, watching digital TV meant retuning an

meant retuning an existing Freeview set or buying a

digital box if your TV wasn’t a digital model.

Слайд 6 High definition 
A higher resolution picture has more lines

High definition  A higher resolution picture has more lines and is

and is much sharper, colourful and more detailed. It’s

no surprise stars were worried their flaws and wrinkles would be more visible with the advent of HD TV.

Слайд 7 3D In the early 2010s 3D television was

3D In the early 2010s 3D television was being pushed

being pushed as the next big viewing trend
But despite

the efforts of manufacturers, 3D TV failed to capture the public’s imagination.
It wasn’t particularly comfortable to watch, you had to wear glasses and you needed to sit directly in front of the set to get the full benefits of the technology.


Слайд 8 LED TV In the mid 2010’s LED(светодиодная подсветка)

LED TV In the mid 2010’s LED(светодиодная подсветка) screens became

screens became popular
There are two different types of LED

TV.:
Edge-lit panels have lamps around the edge of the screen.
 Back-lit panels have LEDs all over the back of the screen.

Слайд 9 Smart TVs
Television sets dubbed ‘smart’ TVs have

Smart TVs Television sets dubbed ‘smart’ TVs have built-in internet

built-in internet connectivity. This allows them to connect to

a router, usually via an Ethernet cable or plug-in wi-fi dongle, to get online.

Слайд 10 OLED TV sets are a variation on LED,

OLED TV sets are a variation on LED, but without

but without a backlight.
OLED is also physically flexible,LG created

a screen that rolls up . This could dramatically change the way a home TV looks, opening up the possibility of curved sets and even screens that can be peeled off the wall.

Слайд 11 Video on demand

Video on demand lets you

Video on demand Video on demand lets you choose exactly

choose exactly what you want to watch, so you

are not at the mercy of TV schedulers


Слайд 12 Ultra HD or 4K
The advantage of such a

Ultra HD or 4KThe advantage of such a high resolution is

high resolution is in the amount of detail you

will be able to see. From the petals of a flower in a nature programme to beads of sweat on a footballer’s face, pictures will be incredibly realistic and close to real life.

Слайд 13 A powerful source of entertainment and information
Some people

A powerful source of entertainment and informationSome people prefer to spend

prefer to spend their free time watching light TV

programmes while others prefer watching political and educational programmes.

Слайд 14 Commercials
TV viewers dislike a TV commercial.They sure it

CommercialsTV viewers dislike a TV commercial.They sure it can spoil the impression of any programme.

can spoil the impression of any programme.


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