terabytes - meaning and definition. What is terabytes
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What (who) is terabytes - definition

UNIT OF DIGITAL INFORMATION EQUAL TO 8 BITS
Exabyte; Petabyte; Terabyte; Yottabyte; Zettabyte; Mebibyte; Gibibyte; Tebibyte; Exbibyte; Kibibyte; KiB; MiB; Pebibyte; Terabytes; GiB; Bytes; Zettabytes; Petabytes; Mibibyte; Terrabyte; TeB; TeraByte; Tera byte; Tera Byte; Tera-byte; Tera-Byte; TiB; Zetbibyte; MiB/s; Yobibyte; EiB; Zebibyte; Ebyte; TByte; T-byte; Pbyte; Tbytes/sec; The Evolution of the Byte; Gibibytes; Kibibytes; ZiB; Mibibytes; Mebibytes; Yodabyte; Exaflood; Exabytes; Kibbibytes; Tebi byte; Peta binary byte; Zetabyte; Binary gigabyte; Tebibytes; Exobyte; YiB; Yottabytes; T byte; Y.B.; Y.b.; Tbytes; Exbibytes; Gibyte; Gibytes; Byte (computing); TB (computing); TB (symbol); PB (computing); PB (symbol); EB (symbol); EB (computing); ZB (symbol); ZB (computing); YB (symbol); YB (computing); 8-bit byte; Byte size; Eight-bit byte; Six-bit byte; 6-bit byte; Nine-bit byte; 9-bit byte; Binary table; Binary term; By eight; Bit asynchronous transmission entity; Binary yoked transfer element; 4-bit byte; Four-bit byte; Variable byte size; Ronnabyte; Quettabyte; PByte; EByte; Tbyte; Zbyte; ZByte; Ybyte; YByte; Rbyte; RByte; Qbyte; QByte
  • Percentage difference between decimal and binary interpretations of the unit prefixes grows with increasing storage size

terabyte         
¦ noun Computing a unit of information equal to one million million (1012) or (strictly) 240 bytes.
terabyte         
<unit> 2^40 = 1,099,511,627,776 bytes = 1024 gigabytes or roughly 10^12 bytes. (Note the spelling - one 'r'). See prefix. (1995-09-29)
terrabyte         
<spelling> It's spelled "terabyte". (1997-01-23)

Wikipedia

Byte

The byte is a unit of digital information that most commonly consists of eight bits. Historically, the byte was the number of bits used to encode a single character of text in a computer and for this reason it is the smallest addressable unit of memory in many computer architectures. To disambiguate arbitrarily sized bytes from the common 8-bit definition, network protocol documents such as the Internet Protocol (RFC 791) refer to an 8-bit byte as an octet. Those bits in an octet are usually counted with numbering from 0 to 7 or 7 to 0 depending on the bit endianness. The first bit is number 0, making the eighth bit number 7.

The size of the byte has historically been hardware-dependent and no definitive standards existed that mandated the size. Sizes from 1 to 48 bits have been used. The six-bit character code was an often-used implementation in early encoding systems, and computers using six-bit and nine-bit bytes were common in the 1960s. These systems often had memory words of 12, 18, 24, 30, 36, 48, or 60 bits, corresponding to 2, 3, 4, 5, 6, 8, or 10 six-bit bytes. In this era, bit groupings in the instruction stream were often referred to as syllables or slab, before the term byte became common.

The modern de facto standard of eight bits, as documented in ISO/IEC 2382-1:1993, is a convenient power of two permitting the binary-encoded values 0 through 255 for one byte—2 to the power of 8 is 256. The international standard IEC 80000-13 codified this common meaning. Many types of applications use information representable in eight or fewer bits and processor designers commonly optimize for this usage. The popularity of major commercial computing architectures has aided in the ubiquitous acceptance of the 8-bit byte. Modern architectures typically use 32- or 64-bit words, built of four or eight bytes, respectively.

The unit symbol for the byte was designated as the upper-case letter B by the International Electrotechnical Commission (IEC) and Institute of Electrical and Electronics Engineers (IEEE). Internationally, the unit octet, symbol o, explicitly defines a sequence of eight bits, eliminating the potential ambiguity of the term "byte".

Examples of use of terabytes
1. The project added 540 million names, increasing the company‘s genealogical database to 600 terabytes of data.
2. If we recorded video constantly, we would need an extra 200 terabytes of memory.
3. Recall that 150 terabytes would be roughly equivalent to 150 million books.
4. Sanger has more than 350 of terabytes of disk storage space, with users downloading some 200 gigabytes a week.
5. Lieber says that Yad Vashem computers contain about 500 terabytes of archived documents, pictures, voice and video files.