Selasa, 20 November 2007

Technological Appliances and Information

Writted By Kelompok 3:
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One hundred fifty year ago, people possibly will surprised if them know that human being can talk with the separate others of distance of till thousands of kilometre , accepting picture at home by xself from space, as well as sending picture or message swiftly from one other place.
Today we use electrics current and wave of elektronics magnetic to send and accept message, exam telephone, faksimile, radio, television, and computer. Methode send and accept this message is referred as by telecommunications.

1. Telephone.
Centenary which was so called America scientist ago, someone of Alexander Graham of Bell believe that electric current earn isn't it to bring voice to the place very far. After some years work hard, Bell find the him of is telephone type which the was him of altering human life.

Vibrant voice is on the air referred as by waving sound. Every waving sound can creep to pass/through electrics current signal which passing our cable. When converse isn't it sound telephone, wave of our voice make an vibrant diaphragm saucer very fast. Diafragma will depress carbon item residing in rear saucer when moving in and will each other closing one another him.

From occurence of electrics this, current will easier emit a stream of to pass carbon. And if peripatetic diaphragm of electrics out, that current become more low. changed this electrics current happened very fast, A several thousand times for second. That current of electric emit a stream of as long as cable is till accepted by other telephone ear.

When electrics current emit a stream of at cable, magnet isn't it diaphragm in ear receive phone. Current of electrics become strength or weaken and peripatetic diaphragm mengembang or mengempis. This change make air vibration yielding waving sound which was dapt heard by us.

2. Radio.
Radio is technology in the form of delivery of signal by modulation waving this elektromagnetics. That wave can creep to pass/through vacuum and air. Radio wave is an forming of formed electromagnetic radiation when items have electrics quickened by using frequency which there are in frequency of radio (RF).

Radiowave have reach 10 hertz till some gigahertz.yang have above frequencies of radiowave are light/ray of gamma, x-ray, infrared, ultraviolet, dan light of see. When radiowave pass cable, selotip of electrics field and magnetic will influence tension and ac at this cable. That situation can yield audio sinyal carrier of this information. Information often we hear in Radio.
Radio first time rill used to deliver message of telegraph by using Morse code by generation of war. Radio is even also used to give communications and comand among/between generation of darta navy and world war of popular II with him plane of do the radio, that deadline since in the year 1920-an, in Europe and United States.

3. Television.
Television is functioning telecommunications appliance catch broadcast of picture. Words of television come from word of tele and of vision,yang have the meaning of tele and vision. So, television mean to see distance of far. Scientist of telivision compared to invention of wheel because can change world.

In the Scient baik terlibat yang is pihak banyak televisi, terdapat perorangan of dipisahkan dapat tidak televisi usaha.penemuan badan maupun penemuan of sejarah Faraday (1831). Berikut Michael dan Henry Joseph oleh ditemukan yang is eletromagnetik gelombang dasar hukum perkembangan of tahun ke tahun of television.

a.1876 - George create camera selenium able to make someone see waving electrics.
b.1884 - Paul a success Germany scientist send electronic picture use kepingan of metal of is so-called electrical telescope with resolution 18 line.
c.1888 - Frederich a Austrian botanist find crystal dilution (crystals liquid) weared as raw material making of LCD.
d. 1897 - Tabung Light/Ray of Katoda (Crt) is the first time created by so called Germany man of science Karl Ferdinand Braun. He makes CRT with phosphorescent screen/sail if hit by light/ray. This invention become base making of tube screen/sail televise.
e. 1900 - Istilah television is the first time told by Constantin Perskyl of Russia at event era of International Congres Elestricity in Paris, French.
f. 1907 - Percobaan use cathode light/ray to send picture done/conducted by Campbell Swinton and of Boris Rosing.
g. 1927 - PhiloT. Farnsworth a United States man of science, developing first modern television when have age 21 year. Of him concerning tube dissector image become television job/activity.
h. 1929 - Vladimir Kosma Zworukin success Russia complete named cathode tube is kinescupe. Finding of developing technology had by CRT.
i. 1940 - Peter Goldmark create colour television with resolution 343 line.
j. 1958 - A masterpiece write erudite concerning LCD as appearance is the first time told by Dr. Brownian Glenn.
k. 1964 - Prototype single cell of first television is the first time created by Donald Bitzer and of Gene Slottow.
l. 1967 - James Fergason find technique of taisted used as neumatic screen/sail of LCD more practical.
m. 1968 - Layer LCD is the first time introduced by RCA led by George Heilmeier.
n. 1975 - Larry Weber of university of Illonois start to design chromatic plasma screen/sail.
o. 1979 - All man of science of company of success Camera find new type appearance of diode led organic (OLED).
p. 1981 - Station Japan television, NHK, isn't it technological**technology******* of ADTV with tired resolution 1.125 line.
q. 1987 - Kodak OLED mematenkan temuan as equipments displayed the first time.
r. 1995 - After ten of year isn't it research, finally the project of plasma screen/sail of Larry Webber have. He succeeds to create more plasma screen/sail stabilize and very bright.
s. Decade 2000 - All technological jebis of screen/sail is progressively completed. Whether LCD, plasma, and CRT continue to release newest product of more him perfection from before all.

4. Computer.
Computer is appliance weared to process information lah, menyimpan and count/calculate data. Initially, computer word utilized to depict people which the was him of doing/conducting the calculation aritmathics without using appliance Assist. However, nowadays computer used many for which do not relate to mathematicses.

a. Way Work Computer.
Basically peripheral of computer divided to become two shares, that is hardware and peripheral of software and keraqs. Hardware, that is parts of which forming one computer prangkat. For example, keyboard, monitor, mouse, printer, scanner, and CD writer. All the hardware reside in outside casing. Software , that is a program or intruction making computer work.

When animated, computer isn't it possible comand of him do/conduct works asked by consumer. The comands is later;then processed by computer till get information and kept in hardware, that is software earn You obtain;get in the form of and sketch of CD which nowadays sold many free. If you need information copy which have been processed by computer, you earn to use pointer as a means of printer of information in the form of picture and text.

b. Usage of Computer in Life.
Possible was you have shopped at supermarket bought assorted of product which you need. When you'd pay in cashier, have you isn't it cashier count/calculate your expense? If the cashier count/calculate without using computer, of course he/she will busy count/calculate your expense goods. Nowadays with existence of computer all expense goodses you earn to be counted/calculated easily and quickly. That one of the example of usage of computer in everyday life is you able to find.

Other example of is you able to find, that is at machine of ATM able to release money practicably. Machine of ATM can function when special code number input you and amount of asked moneys.

Besides can be used as by personal computer, computer earn is also used by in industrial and white colars world. Such as you see in bank. When you save atatu take a number of moneys, bank cashier will protest data yourself by using computer.

Try and find for other example of usage of computer in everyday life!

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