BBC MOS versions
----------------
MOS010    "BBC Computer"  "16K", "32K"  "OS EPROM 0.10"  OS=error  INKEY-256=&0000
MOS100    "BBC Computer"  "16K", "32K"  "OS 1.00"        OS=0      INKEY-256=&FFFF
MOS120    "BBC Computer"  "16K", "32K"  "OS 1.20"        OS=1      INKEY-256=&FFFF
Elk100    "Electron"      acorn bitmap  "OS 1.00"        OS=0      INKEY-256=&0001
MOS120de  "Acorn OS"      "16K", "32K"  "OS 1.20"        OS=1      INKEY-256=&FFFF
  Identical to OS 1.20 UK except title="Acorn OS"
MOS120os  "BBC Computer"  "16K", "32K"  "OS 1.20"        OS=1      INKEY-256=&FFFF
  Identical to OS 1.20 UK except title="Acorn OS", thin font
MOS120us  "Acorn OS"      "16K", "32K"  "OS A1.0"        OS=1      INKEY-256=&00FE
  MODE 3/5/7 have 20 lines instead of 25
  MODE 0/1/2/4/5 have 25 lines instead of 32
MOS123abm "ABM OS"        "32K"         "OS 1.23"        OS=1      INKEY-256=&FFFF

MOS200    "Acorn OS"      "64K"         "OS 2.00"        OS=2      INKEY-256=&00FB
MOS200abc "Acorn business computer" -   "OS 2.00"        OS=2      INKEY-256=&00FA
MOS210cws "Cambridge Workstation"   -   "OS 2.10"        OS=2      INKEY-256=&00FA
MOS230r   "Acorn OS"      "64K"         "OS R0.3"        OS=2      INKEY-256=&00FE or &FFFF
  VDU driver entry at &C400 instead of &C300
  Has *UK (INKEY=&FFFF) and *US (INKEY=&00FE) commands
  "CAT" at start of table instead of "." and seperate "CAT"



MOS010 - OS 0.10 UK
"BBC Computer"
"16K", "32K"
"OS EPROM 0.10"
reading OS gives error
INKEY-256=&0000

MOS100 - OS 1.00 UK
"BBC Computer"
"16K", "32K"
"OS 1.00"
OS=0
INKEY-256=&FFFF

MOS120 - OS 1.20 UK
"BBC Computer"
"16K", "32K"
"OS 1.20"
OS=1
INKEY-256=&FFFF

Electron 100 - OS 1.00
"Electron"
OS=0
INKEY-256=&0001

MOS120de - OS 1.20 Germany
Identical to OS 1.20 UK except title="Acorn OS"

MOS120os - OS 1.20
Identical to OS 1.20 UK except title="Acorn OS", thin font
"Acorn OS"
"16K", "32K"
"OS 1.20"
OS=1
INKEY-256=&FFFF

MOS120us
"Acorn OS"
"16K", "32K"
"OS A1.0"
OS=1
INKEY-256=&00FE
MODE 3/5/7 have 20 lines instead of 25
MODE 0/1/2/4/5 have 25 lines instead of 32

MOS123abm
"ABM OS",
"32K"
"OS 1.23"
OS=1
INKEY-256=&FFFF

MOS200
"Acorn OS"
"64K"
OS=2
INKEY-256=&00FB

MOS200abc
"Acorn business computer"
no memory size
"OS 2.00"
OS=2
INKEY-256=&00FA

MOS210cws
"Cambridge Workstation"
no memory size
"OS 2.10"
OS=2
INKEY-256=&00FA

MOS230r - Reuters terminal
"Acorn OS"
"64K"
"OS R0.3"
OS=2
INKEY=&00FE or &FFFF
  VDU driver entry at &C400 instead of &C300
  Has *UK (INKEY=&FFFF) and *US (INKEY=&00FE) commands
  "CAT" at start of table instead of "." and seperate "CAT"
  Looks for something at &FE32