Arnold is Amstrad's internal codename for the CPC computers.
In the BIOS ROM the string "Arnold" is found as a (non-selectable) leading dummy-entry in the list of LK-selectable Brand Names.
The name of the character Roland (occuring early Amsoft games) is an anagram of Arnold.
Arnold Numbers
Arnold 1-5 are often used to refer to different CPC models.
- Arnold 1 - CPC 464
- Arnold 2 - CPC 664
- Arnold 3 - CPC 6128
- Arnold 4 - costdown CPCs, the 100pin ASIC chip is marked "ARN4" in costdown schematics Amendment Service Manual, page 20)
- Arnold 5 - CPC Plus (the Original Arnold V Specs refer to the CPC Plus [or to its ASIC chip?] as "Arnold V")
Actually, Arnold 1-3 might also refer to the three Gate Array revisions, 40007, 40008, and 40010. [Are there any official documents on Arnold 1-3?]