Lesson plan
48-bit computing
In computer architecture, 48-bit integers can represent 281,474,976,710,656 (2 48 or 2.814749767×10 14 ) discrete values. This allows an unsigned binary integer range of 0 through 281,474,976,710,655 (2 48 − 1) or a signed two's complement range of −140,737,488,355,328 (−2 47 ) through 140,737,488,355,327 (2 47 − 1). A 48-bit memory address can directly address every byte of 256 terabytes of storage. 48-bit can refer to any other data unit that consumes 48 bits (6 octets) in width. Examples include 48-bit CPU and ALU architectures that are based on registers, address buses, or data buses of that size.
Article summary
In computer architecture, 48-bit integers can represent 281,474,976,710,656 (2 48 or 2.814749767×10 14 ) discrete values. This allows an unsigned binary integer range of 0 through 281,474,976,710,655 (2 48 − 1) or a signed two's complement range of −140,737,488,355,328 (−2 47 ) through 140,737,488,355,327 (2 47 − 1). A 48-bit memory address can directly address every byte of 256 terabytes of storage. 48-bit can refer to any other data unit that consumes 48 bits (6 octets) in width. Examples include 48-bit CPU and ALU architectures that are based on registers, address buses, or data buses of that size.
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
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Key claims and bibliography are generated from the same tracked claims and sources as the article page.