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5.89 × 10 9 bits (702 mebibytes) – capacity of a large regular compact disc 6.4 × 10 9 bits – capacity of the human genome (assuming 2 bits for each base pair) 6,710,886,400 bits – average size of a movie in Divx format in 2002. [6] gigabyte (GB) 8,000,000,000 bits (1,000 megabytes) – In 1995 a 1 GB harddisk cost US$849, [5 ...
The byte is a unit of digital information that most commonly consists of eight bits. 1 byte (B) = 8 bits (bit).Historically, the byte was the number of bits used to encode a single character of text in a computer [1] [2] and for this reason it is the smallest addressable unit of memory in many computer architectures.
When b is 2, the unit is the shannon, equal to the information content of one "bit". A system with 8 possible states, for example, can store up to log 2 8 = 3 bits of information. Other units that have been named include: Base b = 3 the unit is called "trit", and is equal to log 2 3 (≈ 1.585) bits. [3] Base b = 10
As 1024 (2 10) is approximately 1000 (10 3), roughly corresponding to SI multiples, it was used for binary multiples as well. In 1998 the International Electrotechnical Commission (IEC) published standards for binary prefixes , requiring that the gigabyte strictly denote 1000 3 bytes and gibibyte denote 1024 3 bytes.
2.7×10 7 bit/s Video data HDTV quality 10 8: 1×10 8 bit/s Networking Fast Ethernet: 4.8×10 8 bit/s Computer data interfaces USB 2.0 High-Speed (interface signalling rate) 7.86×10 8 bit/s Computer data interfaces FireWire IEEE 1394b-2002 S800 9.5×10 8 bit/s Computer storage Harddrive read, Samsung SpinPoint F1 HD103Uj [7] 10 9: Gbit/s 1×10 ...
On the other hand, a hard disk whose capacity is specified by the manufacturer as "10 gigabytes" or "10 GB", holds 10 × 10 9 = 10 000 000 000 bytes, or a little more than that, but less than 10 × 2 30 = 10 737 418 240 and a file whose size is listed as "2.3 GB" may have a size closer to 2.3 × 2 30 ≈ 2 470 000 000 or to 2.3 × 10 9 = 2 300 ...
In this case, this text is 10^3 bytes long, but if you were to add 24 extra characters to this string, it would be 2^10 bytes long, which is used in some fields such as information technology. Each character in this string (which includes the quotation marks at the end, by the way) is exactly one byte long, which is 8 bits.
mega (M) (as a prefix to units of semiconductor storage capacity): A multiplier equal to 1 048 576 (2 20 or K 2, where K = 1024). NOTE 1 Contrast with the SI prefix mega (M) equal to 10 6, as in a 1-Mb/s data transfer rate, which is equal to 1 000 000 bits per second.