Digital Media

Digital is a word we hear a lot lately. Its seems that everything is going digital…whatever that means! In this task we are going to examine exactly what is meant by digital media. All your findings should be recorded in your blog under a post heading of “Digital media”.

Use the site below as a starting point for your research;
http://en.wikipedia.org/wiki/Digital_media#Digital_and_analog_data

1. First off let see if we can list how many forms of digital media surround us.

-Cellphones/mobile phones
-Compact disc
-Digital video
-Digital television
-e-book
-Internet
-Minidisc
-Video game
-World Wide Web

2. What number system is digital data based on? What two digits are used to code all digital data?

Today, computing is primarily based on the binary numeral system. In this case digital refers to the discrete states of "0" and "1" for representing arbitrary data.

3. What is a bit? What is a byte?

The terms bit and byte are common in computer networking. Both terms refer to digital data transmitted over a network connection. For example, bits and bytes both may represent network addresses or port numbers.A bit is a single numeric value, either '1' or '0', that encodes a single unit of digital information. A byte is a sequence of bits; usually eight bits equal one byte.

4. What is “sampling rate”? Find an image that explains how sampling works

The transformation of an Analog signal to Digital information via an Analog-to-digital converter is called sampling. According to information theory, sampling is a reduction of information

5. How does Colour Depth or bit depth effect the appearance of an image?

As our culture becomes increasingly digitized, digital artists are leading the way in exploring and defining this new culture. Digital Artists use a medium that is nearly immaterial, that being binary information which describes the color and brightness of each individual pixel on a computer screen. Taken as a whole an image consisting of pure light is the feedback devise that tells an artist what is being made and simultaneously stored on the computer's hard drive

6. Colour depth effects both still and video digital media. Sampling rate only effects video but not still media. Can you explain.

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