Machine Types returned from Econet_MachinePeek (&88)
        ====================================================

MachinePeek returns four bytes of information:
        0 Machine
        1 Manufacturer
        2 BCD version number, low byte - version xx.XX
        3 BCD version number, high byte - version XX.xx

Byte 1:   &00   Acorn
          &01   Torch
          &02   Reuters
          &10   JGH
          &50   Phillip Blundell
          &FF   SJ Research

In full:
        &0000   Reserved
        &0001   BBC                             (OS 1 or 2)
        &0002   Atom
        &0003   System 3 or System 4
        &0004   System 5
        &0005   Master 128                      (OS 3)
        &0006   Electron                        (OS 0)
        &0007   Archimedes                      (OS 6)
        &0008   Reserved
        &0009   Acorn Communicator
        &000A   Master 128 Econet Terminal      (OS 4)
        &000B   Acorn Filestore
        &000C   Master 128 Compact              (OS 5)
        &000D   Acorn Ecolink card for Personal Computers
        &000E   Acorn Unix workstation          (RISCiX)
        &000F   Acorn RiscPC
        &0010   Castle Technology Iyonix
        &0011   A9

        &1040   JGH Spectrum
        &1041   JGH Amstrad CPC

        &5050   Econet-Ethernet Gateway

        &FFF8   SJ GP Server
        &FFF9   SJ 80386 unix
        &FFFA   SCSI interface
        &FFFB   SJ Research IBM PC Econet interface
        &FFFC   Nascom 2
        &FFFD   Research Machines 480Z
        &FFFE   SJ Research File Server
        &FFFF   Z80 CP/M

The known version numbers returned by Atoms and Systems are anomolous:
       Machine Version
        &0002, &3450 - Atom Econet 3.50
        &0003, &3450 - System 3/4 Econet 3.50
        &0004, &344F - System 5 Econet 3.40