About the Book
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 116. Chapters: Aegean numerals, Algorism, Babylonian numerals, Bi-quinary coded decimal, Bijective numeration, Binary-coded decimal, Binary prefix, Chronogram, Chuvash numerals, Computer number format, Counter, Counting, Cyrillic numerals, Egyptian numerals, Elias delta coding, Elias gamma coding, Elias omega coding, Engineering notation, Excess-3, Exponential-Golomb coding, Genealogical numbering systems, Gray code, Greek numerals, Hindu-Arabic numeral system, History of the Hindu-Arabic numeral system, History of writing ancient numbers, Hundred (word), Jacques Pelletier du Mans, Leading zero, Levenstein coding, List of numbers, List of numeral systems, List of numeral system topics, Long and short scales, Maya numerals, Metric prefix, Midy's theorem, Names of large numbers, Names of small numbers, Nicolas Chuquet, Non-standard positional numeral systems, Numeral prefix, Numerical digit, Offset binary, Ones' complement, Pace count beads, Prehistoric numerals, Radix, Radix point, Repeating decimal, Roman numerals, Scientific notation, Sign-value notation, Slashed zero, South Asian numbering system, Subtractive notation, Suzhou numerals, Table of bases, Tallyman, Tally marks, Units place. Excerpt: This article is about "bases" as that term is used in discussion of certain numeral systems. This table of bases gives the values of 1-100 in bases 2-20. 13,14,15, 16,17,18, 19,20- Hamid N. Yeganeh In computing, a binary prefix is a specifier or mnemonic that is prepended to the units of digital information, the bit and the byte, to indicate multiplication by a power of 1024. The computer industry currently uses terms such as kilobyte, megabyte, and gigabyte, and corresponding symbols KB, MB, and GB, in two different ways. In citations of main memory or RAM capacity, gigabyte customarily means bytes. This is a power of 1024 (specifically 1024), and 1024 is a power of 2 (specifically 2), therefore this usage is referred to as a binary prefix. In most other contexts, the industry uses kilo, mega, giga, etc., in a manner consistent with their meaning in the International System of Units (SI): as powers of 1000. For example, a 500 gigabyte hard drive holds bytes, and a 100 megabit per second Ethernet connection transfers data at bit/s. In contrast with "binary prefix," this usage is referred to as a "decimal prefix," as 1000 is a power of 10. Using the same prefixes to mean two different things within the same industry has caused some confusion. Starting around 1998, a number of standards and trade organizations approved standards and recommendations for a new set of binary prefixes that would refer unambiguously to powers of 1024. According to these, the SI prefixes would only be used in the decimal sense, even when referring to data storage capacities: kilobyte and megabyte would denote one thousand bytes and one million bytes respectively (consistent with SI), while new terms such as kibibyte, mebibyte and gibibyte, abbreviated KiB, MiB, and GiB, would denote 1024 bytes, bytes, and bytes respectively. Early computers used one of two addressing methods to access the system memory; binary (base 2) or decimal (base 10). For example, the IBM 701 (1952) used binary and c
