28 Jun
2007
28 Jun
'07
6:41 p.m.
Roger Holmes wrote:
MOST????? STANDARD????? Rubbish! IBM 7094 -
36 bits. ICT
1301 - 48 bits. CDC 6600/7600 60 (or was it 64?) bits. CDC SC17 (not
sure exact era) - 16 bits. Elliott 903/920B/905/920C/920ATC - 18
bits. Many of the BCD machines used 4 bit words I believe. Mid 60s
ICL 1900 - 24 bits. What used 40 bits?
Some 40 bit machines from the early 50's:
- von Neumann's IAS machine and it's duplicates/descendants:
ILLIAC, ORDVAC, MANIAC, not sure about the JOHNIAC,
- Manchester/Ferranti Mark I series
Some other oddball values from that era:
- BINAC: 31 bits
- EDSAC: 35 bits
- SWAC: 37 bits
- EDVAC: 44 bits
- SEAC: 45 bits
..(resent from 3:13PM, pardon this if first transmission decides to shows up)