The Newmanry History

53P Page 352

See the photograph.(Fig 58(x))

MAS is the master switch (upper row, second switch from right; labelling

The switches labelled X, Mu, PSI, are the stepping switches 53D(c). The

The other switches are

SIP Significance
Interpretation [53G(b)]

Any account of the methods used by the engineers to test Colossi would be

Owing to the complexity of its operations Colossus can produce results so

Runs have therefore been selected such that a machine faulty in any respect

A single fantastic run could doubtless be devised to check everything, but

Of course when there is a fault the ordinary chi and psi tests [ 23K(d) ]

| previous page | next page | index page |