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A CD ROM can store 6 bilion bits What is the average area taken up

A CD ROM can store 6 bilion bits What is the average area taken up

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A CD-ROM can store 6 bilion bits. What is the average

area taken up by each bit?

Solution

CD-ROM:

A CD-ROM is a pre-pressed optical compact disc which

contains data. The name is an acronym which stands for

\"Compact Disc Read-Only Memory\". Computers can read

CD-ROMs, but cannot write to CD-ROMs which are not

writable or erasable.

Until the mid-2000s, CD-ROMs were popularly used to

distribute software for computers and video game

consoles. Some CDs, called enhanced CDs, hold both

computer data and audio with the latter capable of being

played on a CD player, while data (such as software or

digital video) is only usable on a computer.

The Yellow Book is the technical standard that defines the

format of CD-ROMs. One of a set of color-bound books

that contain the technical specifications for all CD formats,

the Yellow Book, created by Sony and Philips in 1988, was

the first extension of Compact Disc Digital Audio. It

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adapted the format to hold any form of digital data.

average area taken up by each bit :

Grouping Bits : We need to convert all memory

requirements into bits (b) or bytes (B). It is therefore

important to

understand the relationship between the two.

A bit is the smallest unit of memory, and is basically a

switch. It can be in one of two states, \"0\" or \"1\". These

states

are sometimes referenced as \"off and on\", or \"no and

yes\"; but these are simply alternate designations for the

same

concept. Given that each bit is capable of holding two

possible values, the number of possible different

combinations

of values that can be stored in n bits is 2n

. For example:

1 bit can hold 2 = 21

possible values (0 or 1)

2 bits can hold 2 × 2 = 22

= 4 possible values (00, 01, 10, or 11)

3 bits can hold 2 × 2× 2 = 23

= 8 possible values (000, 001, 010, 011, 100, 101, 110, or

111)

4 bits can hold 2 × 2 × 2 × 2 = 24 =16 possible values

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A CD-ROM can store 6 bilion bits. What is the average area taken up by each bit? Solution CD-ROM: A CD-ROM is a pre-pressed optical compact disc which contains data. The name is an acronym which stands for \"Compact Disc Read-Only Memory\". Computers can read CD-ROMs, but cannot write to CD-ROMs which are not writable or erasable. Until the mid-2000s, CD-ROMs were popularly used to distribute software for computers and video game consoles. Some CDs, called enhanced CDs, hold both computer data and audio with the latter capable of being played on a CD player, while data (such as software or digital video) is only usable on a computer. The Yellow Book is the technical standard that defines the format of CD-ROMs. One of a set of color-bound books that contain the technical specifications for all CD formats, the Yellow Book, created by Sony and Philips in 1988, was the first extension of Compact Disc Digital Audio. It adapted the format to hold any form of digital data. average area taken up by each bit : Grouping Bits : We need to convert all memory requirements into bits (b) or bytes (B). It is therefore important to understand the relationship between the two. A bit is the small ...
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