A further development of the ideas was a machine called Super Robinson or Super Rob. Designed by Tommy Flowers, this one  had four bedsteads to allow for running four tapes and was used for running depths and "cribs" or known-plaintext attack runs.
A further advancement of the concepts led to a machine called Super Robinson or Super Rob. Designed by Tommy Flowers, it featured four bedsteads to accommodate running four tapes and was utilized for conducting depths and "cribs" or known-plaintext attack runs.