(AET) Study Guide - NCATT

Page 21 of 5113. Digital Numbering Systems NCATT Training Standard Level (B)(a) BinaryObjective:Identify the relationship of basic facts and state general principles about binary digital numberingsystems.Content – Binary:Explain the use of the binary digital numbering system and practice conversions with reference tothe following terms:• Decimal Numbering System—Uses numbers 0 – 9. The decimal numbering systemoperates in Base 10.• Binary Numbering System (Binary Notation)—Mathematical computation based onpowers of two. The binary numbering system is composed of two digits (1 and 0). Binarynotation operates in Base 2. Each digit in a binary number represents two bits.• Binary Digit (bit)—Each zero or one in a binary number.• Byte—Consists of eight bits.• Conversions—Mathematical ways to express digital numbering systems. For example, adecimal number may be converted to its binary equivalent by sequentially dividing thenumber by 2 and recording each remainder.13. Digital Numbering Systems NCATT Training Standard Level (B)(b) OctalObjective:Identify the relationship of basic facts and state general principles about octal digital numberingsystems.Content – Octal:Explain the use of the octal digital numbering system and practice conversions with reference tothe following terms:• Octal Numbering System (Octal Notation)—Mathematical computation based on powersof eight. The octal numbering system is composed of eight digits (0 – 7). Octal notationoperates in Base 8. Each digit in an octal number represents three bits, a triad.• Conversions—See Digital Numbering Systems/Binary.Copyright © 2008 by the National Center for Aircraft Technician Training. All rights reserved.Individuals may download, print, and make copies of this documentfor their own personal use. Commercial use prohibited.