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Kensington Security lock: unlocked, locked The Kensington Security Slot is the rightmost opening on the side of this Acer Swift 3 laptop computer. The Kensington Security Slot (also called a K-Slot or Kensington lock) is an anti-theft system for hardware electronics such as notebook computers, computer monitors and others. It is a small, metal ...
Within it, the PIN is decrypted. With a cryptographic key used for interchange, the decrypted key is immediately re-encrypted and is routed to the issuer's system over normal communications channels. Lastly, the routed PIN is decrypted in the issuer's security module and then validated on the basis of the techniques for on-line local PIN ...
In the 1980s and early 1990s, IBM Personal Computers and some PC compatibles included a tubular pin tumbler lock on the computer's casing, performing a security function that varied by manufacturer. In some instances, the lock would prevent the case from being opened to inhibit the theft or modification of internal components.
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An ATM encrypting PIN pad (EPP) with German markings. An encrypting PIN pad is an apparatus for encrypting an identifier such as a PIN entered on a keypad. These are used in automated teller machines to ensure that the unencrypted PIN is not stored or transmitted anywhere in the rest of the system and thus cannot be revealed accidentally or through manipulations of the system.
It also controls the illumination of the "caps lock", "num lock" and "scroll lock" lights. A common test for whether the computer has crashed is pressing the "caps lock" key. The keyboard sends the key code to the keyboard driver running in the main computer; if the main computer is operating, it commands the light to turn on. All the other ...