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Answer:

Always some information is lost. Usually we don't want it to and for audio data use "high fidelity" electronics to minimize the change.


Byte

NameNumber of Bytes power of 2
byte1 20
kilobyte1024 210
megabyte1,048,576 220
gigabyte1,073,741,824 230
terabyte1,099,511,627,776 240

One bit of information is so little that usually computer memory is organized into groups of eight bits. Each eight bit group is called a byte.

One byte is about enough memory to hold a single character. When more than eight bits are required for some data, several of bytes are used. Typically, four bytes are used to represent integers.

Often very much more than eight bits are required for data, and thousands, millions, or even billions of bytes are needed. These amounts have names, as seen in the table.

If you expect computers to be your career, it would be a good idea to become familiar with this table. The only number you really need to remember is that a kilobyte is 1024 bytes. Often a kilobyte is called a "K", a megabyte is called a "Meg", and a gigabyte is called a "Gig".

The table lists the number of bytes, not bits. So one K of memory is 1024 bytes (which happens to be 1024*8 == 8,192 bits).


QUESTION 5:

How many 10 Meg files would it take to fill a 500 Gig hard drive?


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