48-bit computing: Difference between revisions

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m Reverted good faith edits by 71.208.205.180 (talk): That's not right, as integers are signed; please try again more carefully. (TW)
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{{Unreferenced|date=August 2007}}
{{Computer architecture bit widths}}
In [[computer&nbsp;architecture]], '''48-bit''' [[integer (computer science)|integer]]s can represent every281,474,976,710,656 (2<sup>48</sup> or 2.814749767×10<sup>14</sup>) discrete values. This allows an [[Unsigned integer|unsigned]] frombinary 0integer inclusiverange throughof 2560 through tera281,474,976,710,655 (2<sup>48</sup> − =1) or a [[Signed number representations|signed]] [[two's complement]] range of -140,737,488,355,328 (-2.814749767×10<sup>1447</sup>) bytesthrough exclusive140,737,488,355,327 (2<sup>47</sup> − 1). A '''48-bit''' [[memory address]] can directly address every byte of 256 terabytes[[Tebibyte|tebibytes]] of storage. '''48-bit''' can refer to any other [[data#Uses of data in computing|data]] unit that consumes 48 [[bit]]s (6 [[octet (computing)|octets]]) in width. Examples include 48-bit [[Central processing unit|CPU]] and [[Arithmetic logic unit|ALU]] [[computer architecture|architecture]]s are those that are based on [[processor register|register]]s, [[address bus]]es, or [[Bus (computing)|data bus]]es of that size.
 
==Word size==