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==Word size==
Computers with 48-bit [[Word (data type)|words]] include the [[AN/FSQ-32]], [[Control Data Corporation|CDC]] 1604/[[CDC 3000|upper-3000 series]], [[BESM-6]], [[Ferranti]] [[Atlas (computer)|Atlas]], [[Philco]] [[Philco Transac S-2000|TRANSAC S-2000]] and [[Burroughs large systems]].{{efn|The B5000, B5500 and B5700 took 3 bits in control words and numeric data for use as a tag; alphanumeric data and instruction syllables were stored in the full 48 bits and had no tags.}}{{efn|The B5900-B8xxx additionally had a 3- or 4-bit type tag.}}
The Honeywell [[DATAmatic 1000]],
the [[MANIAC II]],
the [[MANIAC III]],
the [[Brookhaven National Laboratory]] Merlin,<ref>
[http://ed-thelen.org/comp-hist/BRL61-m.html#MERLIN "MERLIN"].
</ref>
the [[ Philco_computers#CXPQ | Philco CXPQ]],
the [[Ferranti Orion]],
the [[Telefunken Rechner TR 440]],
the [[ICT 1301]],
and many other early transistor-based and vacuum tube computers<ref>
[https://retrocomputingforum.com/t/in-search-of-48-bit-computers/898 "In search of 48 bit computers"].
</ref>
used 48-bit words.
==Addressing==
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