plugboard

Wiring the plugboard "programmed" the system, which operated as a sort of read only memory.

The machine also featured a plugboard to swap pairs of letters.

Like the Colossus, it was programmed by plugboard and switches.

"You're tied into the computer," she accused, pointing to the connections in the plugboard.

Each letter on the plugboard had two jacks.

Keys were easily changed by changing the rotor disks and the plugboard wires.

A plugboard control panel was used for programming and formatting of the printout.

This was useful in working out plugboard settings when a possible solution was being examined.

The reciprocal nature of the plugboard meant that no letter could be connected to more than one other letter.

A plugboard was used on the famous Enigma machine; it was not removable.

It used what Rejewski called "characteristics" that were independent of the plugboard connections.

In addition, ten leads were used on the plugboard leaving only six letters unsteckered.

The plugboard connections were known to the cryptanalysts as Stecker values.

The next ten letter pairs represented the cross-pluggings he needed to make on the plugboard at the back of the Enigma.

The plugboard contributed a great deal to the strength of the machine's encryption: more than an extra rotor would have done.

British codebreakers succeeded in breaking these machines, which lacked a plugboard.

The operation of many machines was directed by the use of a removable plugboard or control panel.

While the crib does not allow us to determine what the values after the plugboard are, it does provide a constraint between them.

It is programmable by plugboard and uses conditional branching.

Using only six plugboard leads, leaving 14 letters unsteckered.

The first step was to offer a calculator that could be programmed on punch cards in addition to a manual plugboard.

Electrical connections between the rotating drums' wiring and the rear plugboard were by means of metal brushes.

Line formatting was programmed by inserting wire jumpers into a plugboard control panel.

The Poles had used an early form of crib-based decryption in the days when only six leads were used on the plugboard.

"You didn't disconnect the plugboard from the Ox," Timberlake whispered.