Pixel and Mega pixel Part 2

In my last blog . I discussed about Pixel and megapixels.
Today I am going  to discuss on the topic VGA . What is VGA ?
VGA was developed in 1987 by IBM. VGA stands for Video Graphic Array. It is a old format and now a days it is replaced  by hd . VGA camera also consist of pixels but it was less than
1 megapixels.  i.e  VGA size is about 640 wide by 480 pixels tall ( vise versa)  or you can that it is equal to  0.3 megapixles. and less than 1 megapixel. Thats why in old camera phone and in todays  camera quality has a great  differences  which due to the word pixels.  And this is the difference between vga camera and hd camera



I think after seeing this image you can recall old days of phone and VGA cameras.
  * VGA file size was much smaller than that of HD images size.
that was the region these phone need less memory space .


Now come to VGA cables ?

I think every one have seen this cable . which is used to connect your monitor with CPU , yup . and its on your laptop also you can see the slot of VGA connectors. VGA wires basically transfer analog signals. ( on analog signals and digital signals we will go on later)
 Now a  days we are seeing another slot that is HDMI.
which looks like this . In todays laptop , television , and even in your settop box like tatasky and others you can find these HDMI slots.



What is HDMI ?
HDMI stand for High Definition  Multimedia Interface.
its transfer the hd information to the out put .




IN my next blog we get more to HDMI....

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