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3.4 × 10 21 bits (0.36 zettabytes) – amount of information that can be stored in 1 gram of DNA [17] 4.7 × 10 21 bits (0.50 zettabytes) – amount of digitally stored information in the world as of May 2009 [18] 4.8 × 10 21 bits (0.61 zettabytes) – total hard drive capacity shipped in 2016 [19] 2 72: 4,722,366,482,869,645,213,696 bits ...
The baud unit is named after Émile Baudot, the inventor of the Baudot code for telegraphy, and is represented according to the rules for SI units.That is, the first letter of its symbol is uppercase (Bd), but when the unit is spelled out, it should be written in lowercase (baud) except when it begins a sentence or is capitalized for another reason, such as in title case.
The physical phenomena on which the device relies (such as spinning platters in a hard drive) will also impose limits; for instance, no spinning platter shipping in 2009 saturates SATA revision 2.0 (3 Gbit/s), so moving from this 3 Gbit/s interface to USB 3.0 at 4.8 Gbit/s for one spinning drive will result in no increase in realized transfer rate.
Therefore, a word of n bytes can contain up to (2n)−1 decimal digits, which is always an odd number of digits. A decimal number with d digits requires 1 / 2 (d+1) bytes of storage space. For example, a 4-byte (32-bit) word can hold seven decimal digits plus a sign and can represent values ranging from ±9,999,999.
While 4-bit computing is mostly obsolete, 4-bit values are still used in the same decimal-centric roles they were developed for, and modern implementations are generally much wider and process multiple 4-bit values in parallel. An example of such a system is the HP Saturn design of the 1980s. By the 1990s, most such uses had been replaced by ...
Modern compact discs support a writing speed of 52× and higher, with some modern DVDs supporting speeds of up to 24×. [4] Writing a DVD at 1× (1 385 000 bytes per second) [5] is approximately 9 times faster than writing a CD at 1× (153 600 bytes per second). [6] However, the actual speeds depend on the type of data being written to the disc ...
The following is a List of Bangladeshi inventions and discoveries which lists inventions and discoveries made by Bangladeshis both within Bangladesh and outside the region, which owe their existence either partially or entirely to a person born in Bangladesh.
In 1989, the Patent Office and the Trademarks Registry were joined. In 2003, the Department of Patents, Designs and Trademarks (DPDT) was established in its present form by the Ministry of Industry. [4] It approves geographical indication for products in Bangladesh. [5]