Tip & How-To about Televison & Video
TO START OFF WITH WE MUST UNDERSTAND SOME FUNDAMENTAL
1 We will examine together in a progressive way the different typs of cables available with a breaf description ,starting with the worst type of cable to the best
I would like to specify i will show 2 pictures 1 the connecter on a tv 2 the cable that goes with this connecter
No 1 Coaxial cable Coaxial cables have been around for a very long time until the end of the 70 s begine 80 s this was the only available cable .
Whats important to know about coaxiale cable is that audio and video signals pass all together this obligates a lot a filtration to seperate signals creating a lot of noise
No 2 composite or yellow , composite cable mainly appered in the beginning of the 80 s the main difference of composite compared to coaxial is that audio is seperated. The yellow cable is our video signal, composite (yellow ) must be matched with audio cables one red for right side one white for left side . advantages over coax better sound since audio is seperated from video , also better video because audio signals are absent from video signal so less filtration is necessary
No 3 S-video . S-video appeared at the end of the 80 s beginning 90 s . like composite video the audio signal is seperated it also has to be matched with a red and white cables for audio . whats the main difference between composite (yellow) and S-video ? well if we keep this simple lets say that a video signal is composed of many signals . Our composite cable passes all of them in the same time , but are s-video cable seperats colour signals cromonance signals and puts a seperate ground for each ,gives superier video signal and s-video can support higher resolution 480i .No 4 component . Component cables apeared mid 90 s. again like composite and s-video audio is seperated component cables must also be matched with red and white for audio .Component cables come in a paire of three one blue one green and one red , the main advantage of component is we are seperating the video signal even more with component we are seperating the three primary colours red blue and green ,also component cables have higher resolution than composite or s-video up to 1080
No 5 DVI (Digital Video Interface) appeared latte 90 s beginning 2000 . DVI was a majeur amilioration and like composite -s-vide and component, audio was seperated ,audio cables had to be matched . The main advantage of DVI is its multipine connecter that permitted us to seperate even more prescisly our video signal . Like composite DVI supports high resolution 1080
No 6 and the last HDMI (High Definition Media Interface ) the cream of all
there are many advantages with HDMI 1 1080 p resolution 2 no audio cables necessary 3 multi pine connecter 4 communication protocols ( the ability for devices like a tv and a dvd to comminicat together ,making things more user freindly
Posted by Anonymous on
Nov 11, 2009 | Computers & Internet
Jan 10, 2009 | Nokia N95 Cellular Phone
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