Digital telvision, digital video, internet, video games, and World Wide Web (www)
· What number system is digital data based on? What two digits are used to code all digital data?
Digital data is based on Binary numbers. 0 and 1 are the two digits to code all digital data.
· What is a bit? What is a byte?
A bit is a single numeric value, either 1 or 0, a byte contains 8 bits.
· What is “sampling rate”? Find an image that explains how sampling works (Wikipedia is a good resource here…you can place these images in your blog)
A sampling rate is a grah that shows the amount of a sample per second.
courtsy of ww.en.wikipedia.org/wiki/Sampling_rate
· How does Colour Depth (Color Depth) or bit depth effect the appearance of an image? Find some images to illustrate the effect.
Colour depth affects the apperance of an image by altering the colour quality depending onthe amount of bytes or bits in that particular image. For example if you have one or two bits in an image you will only have a monochrome coloured image. Whereas is you have an image with more bytes you will get a better quailty image with 64 bytes being the largest so far.
· Colour depth effects both still and video digital media. Sampling rate only effects video but not still media. Can you explain.
Sampling rate only affects video as it takes the sample per second, a video is a moving image and therefore the sampling rate would take the images per second. However colour depth only affects still and video digital media. Nothing is produced in still images and therefore a sampling rate is not affected.
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