- Internet
- computers/Lap tops
- e-books
- Televisions
- Mobile phones
- Video games
- Gaming consoles.
What number system is digital data based on? What two digits are used to code all digital data?
The number system of digital data is based on what we call the binary system. Texts, numbers, pictures, audio and nearly any other form of information can be converted into bits, also known as binary digits. Each of these digits either have a value of 1 or 0.
What is a bit? What is a byte?
As stated before a bit can also be referred to as a binary digit. A bit or byte is the smallest unit of information a computer is able to work with. Computers represent data shown in bits or bytes. Bits are grouped into bits.
What is “sampling rate”? Find an image that explains how sampling works.
Sampling frequency, more commonly known as sampling rate, is the number of samples per unit of time (usually seconds) taken from a continuous signal to make a discrete signal.
How does Colour Depth (Color Depth) or bit depth effect the appearance of an image? Find some images to illustrate the effect.
Each bit represents not only data but a single colour as well. When the bits are placed next to each other a picture can be seen. This is known as colour or bit depth, and is even call bpp (bits per pixel). Colour depth can also be defined as the maximum number of colours that are used in an image. Colour depth will affect the appearance of any image. For example black and white pictures require a lower colour depth than high colour pictures, so it may be set to 1-bit colour depth. The images below shows of the difference between to different colour depth settings.
Colour depth effects both still and video digital media. Sampling rate only effects video but not still media. Can you explain.
The difference between sampling rate and colour depth is that sampling rate will only effect videos because it takes in the sample per second. Since a video is a moving image the sampling rate will take in the images per second. Meanwhile colour depth can affect both still and moving images because the colour of the images is the only thing it really needs to measure.
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