User:SOTO/Forum Archive/The Reference Desk/@comment-58.7.80.160-20131006033554/@comment-188432-20131016152430
From Tardis Wiki, the free Doctor Who reference
The answer, according to Andrew Pixley in DWM 296, is that it was an Anchor machine, not a real "computer" as such. Anchor machines were analogue, not digital, devices.