octal - definição. O que é octal. Significado, conceito
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O que (quem) é octal - definição

POSITIONAL NOTATION
Base 8; Base-8; Base eight; Octomatics; Octal numeral system; Octal number; Base 8 Algorithm; Octal system; 0o (prefix); OCT (calculator mode); \nnn (octal); Binary coded octal; Binary-coded octal; BCO code; BCO (code); Octal code; Binary Coded Octal; Octal digit; Octal Positional notation; Octal-positional notation; Octal positional; Octal positional value; Octal positional numbering system; Octal positional number system; Octalnumeral system; Octal-numeral system; Base-8 number system; Octal literal
  • 0 at the base, 7 at the top, 1 to 3 on the right, 4 to 6 on the left

octal         
<mathematics> Base 8. A number representation using the digits 0-7 only, with the right-most digit counting ones, the next counting multiples of 8, then 8^2 = 64, etc. For example, octal 177 is digital 127: digit weight value 1 8^2 = 64 1* 64 = 64 7 8^1 = 8 7* 8 = 56 7 8^0 = 1 7* 1 = 7 --- 127 Octal system used to be widespread back when many computers used 6-bit bytes, as a 6-bit byte can be conveniently written as a two-digit octal number. Since nowadays a byte is almost always 8-bit long the octal system lost most of its appeal to the hexadecimal system. For a brief discussion on the word 'octal' see hexadecimal. (1997-06-16)
octal         
['?kt(?)l]
¦ adjective relating to or using a system of numerical notation that has 8 rather than 10 as a base.
¦ noun the octal system; octal notation.
Octal         
The octal numeral system, or oct for short, is the base-8 number system, and uses the digits 0 to 7, that is to say 10octal represents eight and 100octal represents sixty-four. However, English, like most languages, uses a base-10 number system, hence a true octal system might use different vocabulary.

Wikipédia

Octal

The octal numeral system, or oct for short, is the base-8 number system, and uses the digits 0 to 7. This is to say that 10octal represents eight and 100octal represents sixty-four. However, English, like most languages, uses a base-10 number system, hence a true octal system might use different vocabulary.

In the decimal system, each place is a power of ten. For example:

74 10 = 7 × 10 1 + 4 × 10 0 {\displaystyle \mathbf {74} _{10}=\mathbf {7} \times 10^{1}+\mathbf {4} \times 10^{0}}

In the octal system, each place is a power of eight. For example:

112 8 = 1 × 8 2 + 1 × 8 1 + 2 × 8 0 {\displaystyle \mathbf {112} _{8}=\mathbf {1} \times 8^{2}+\mathbf {1} \times 8^{1}+\mathbf {2} \times 8^{0}}

By performing the calculation above in the familiar decimal system, we see why 112 in octal is equal to 64 + 8 + 2 = 74 {\displaystyle 64+8+2=74} in decimal.

Octal numerals can be easily converted from binary representations (similar to a quaternary numeral system) by grouping consecutive binary digits into groups of three (starting from the right, for integers). For example, the binary representation for decimal 74 is 1001010. Two zeroes can be added at the left: (00)1 001 010, corresponding to the octal digits 1 1 2, yielding the octal representation 112.

Exemplos do corpo de texto para octal
1. At that stage, Octal will be five times larger than the next producer of APET sheet and the largest PET manufacturer in the Middle East.
2. Octal, which started operations at Salalah Free Zone in December 2006, has invested more than $300 million in proprietary technology and custom–engineered production lines.
3. Octal entered the market with 20,000 metric tons of capacity and an additional 10,000 metric tons per year has come on stream this month.
4. Mohammed bin Hassan Al–Dheeb, deputy CEO of SFZC, said the agreement involved the right of empowering four investors in mega industrial projects worth 630 million rials ($1.6 billion). The projects, spread over a 112–acre land, include Octal Petrochemical Company which has already commenced commercial production.
5. In a statement, company’s Managing Director Nicholas Barakat, said: «By mid–2008, Octal will have sales of $500 million per annum, and with a strong equity base, we’re in a position to expand as needed.» Worldwide sales of APET were approximately $2.25 billion in 2006, mostly in the US and Europe.