What is digital technology ?
Recently, electrical signals were transmitted via home antenas or cables laid underground.This signals got converted into pictures and sound in our television sets.This technique slowly replaced by another technology called digital technology. In this technology,the electrical signals of image and sounds are converted into impulses and encrypted 'coded' in numbers. The image and sound data are decrypted or 'decoded' in our homes so that we can see the live original amazing programmes.Latest television sets can decode by themselves, but age-old ones need a 'set-top box'. The digital signals also can come from radio stations to our homes.This done via cable,antenna, or satellites.
'digital' is derived from Latin word 'digitus',which means finger ? This is because one can count with the help of fingers and digital data is data in binary code.
Did you know that
- IN 1850, the founder of German news agency reuters sent the first news via carrier pigeons ?
- The first live television transmission in history was the inauguration of the Olympic games in 1936 in berlin ?
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ReplyDeleteNice post..👍👍
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