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2. Access control - Wikipedia

   en.wikipedia.org/wiki/Access_control

   Common physical security access control with a finger print A sailor checks an identification card (ID) before allowing a vehicle to enter a military installation.. In physical security and information security, access control (AC) is the selective restriction of access to a place or other resource, while access management describes the process.

3. Master–slave (technology) - Wikipedia

   en.wikipedia.org/wiki/Master–slave_(technology)

   In database replication, the master database is the authoritative source. A replica database, sometimes called a slave, is synchronized to it but is not controlled by it. A Parallel ATA (aka IDE) hard drive interface supports two hard drives on a cable, which are designated master and slave. The distinction is required by the interface even ...

4. Wiegand interface - Wikipedia

   en.wikipedia.org/wiki/Wiegand_interface

   The Wiegand interface is a de facto wiring standard which arose from the popularity of Wiegand effect card readers in the 1980s. It is commonly used to connect a card swipe mechanism to the rest of an access control system. The sensor in such a system is often a "Wiegand wire", based on the Wiegand effect, discovered by John R. Wiegand. A ...

5. Logical access control - Wikipedia

   en.wikipedia.org/wiki/Logical_access_control

   Logical access controls enforce access control measures for systems, programs, processes, and information. The controls can be embedded within operating systems, applications, add-on security packages, or database and telecommunication management systems.

6. Plugboard - Wikipedia

   en.wikipedia.org/wiki/Plugboard

   A plugboard or control panel (the term used depends on the application area) is an array of jacks or sockets (often called hubs) into which patch cords can be inserted to complete an electrical circuit. Control panels are sometimes used to direct the operation of unit record equipment, cipher machines, and early computers. The array of holes is ...

7. Distribution board - Wikipedia

   en.wikipedia.org/wiki/Distribution_board

   A distribution board (also known as panelboard, circuit breaker panel, breaker panel, electric panel, fuse box or DB box) is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits while providing a protective fuse or circuit breaker for each circuit in a common enclosure.

8. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

9. Electrical wiring - Wikipedia

   en.wikipedia.org/wiki/Electrical_wiring

   Electrical wiring is an electrical installation of cabling and associated devices such as switches, distribution boards, sockets, and light fittings in a structure. Wiring is subject to safety standards for design and installation.