octal

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octal

[′äkt·əl]
(mathematics)
Pertaining to the octal number system.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

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.

octal

A numbering system that uses eight digits. It is used as a shorthand method for representing binary characters that use six-bits. Each three bits (half a character) is converted into a single octal digit. Okta is Greek for 8.

```Decimal  Binary   Octal
0        000      0
1        001      1
2        010      2
3        011      3
4        100      4
5        101      5
6        110      6
7        111      7
```
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
Operating from Salalah Free Zone, OCTAL has emerged as the largest PET sheet producer and integrated packaging company in the world.
The upswing in OCTALs PET sheet business has been driven by increased volumes, firstly by operational efficiency then by capacity.
What are the new areas that Octal plans to foray into in 2019?
Octal's extensive product range includes PET barrier and non-barrier laminated sheet, antifog sheet, print grade sheet, coloured PET sheet, and impact resistant, among other grades.
Meanwhile, Nabhan Al Batashi, chairman of the General Federation of Oman Trade Unions (GFOTU), said that the Ministry of Manpower and the labour union have met several times with the representatives of the Octal Company to settle the workers' demands but the company has been stalling the agreement approved by all the parties.
Big companies like OCTAL that have just completed the second phase of its expansion have planned to invest up to US\$800mn for further upstream and downstream projects.
Octal now accounts for 10%of Oman's non-oil exports, equating to 2% of Oman's total GDP.
Octal states its DPET sheet is ideal for produce packaging such as fresh produce, meat, cheese and yoghurt, as it has superior optical qualities together with strength, flexibility and sustainability.
Jagdish Vadalia Product Development Manager said, "GL's Octal & Quad T1 E1 boards are high density and provide Four (4) or Eight (8) RJ-48 T1 E1 ports and multiples thereof.
OCTAL was evaluated on its commitment to quality management, proactive approach towards customer satisfaction and continual improvements in all aspects of its resin production.
"If you look at shampoo, peanut butter or furniture cleaner, a lot of products have moved into Pet (polyethylene terephtalate) packaging," says Nicholas Barakat, Octal's managing director.
Oman-based Octal Petrochemicals has started operations of its second PET plant in the southeast port city of Salalah.

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