The form of FDDI interface where a device is connected to both FDDI token-passing rings, so that uninterrupted operation continues in the event of a failure of either of the rings. All connections to the main FDDI rings are dual-attached. Typically, a small number of critical infrastructure devices such as routers and concentrators are dual-attached, whereas host computers are normally single-attached or dual-homed to a router or concentrator.
For example, a ring could be formed between a single router and two concentrators (all dual-attached) then all other components that need to be fault-tolerant (typically file servers) can be dual-homed to both concentrators.
adjective 1. of or relating to mobile telephones that can operate on two GSM frequency bands
- Dual boot
operating system Any system offering the user the choice of two operation systems (OSes) under which to start a computer. A dual boot system allows the user to run programs for both operating systems on a single computer (though not simultaneously). The term “multiple boot” or “multiboot” extends the idea to more than two OSes. […]
[doo-uh l-kahrb, dyoo-] /ˈdu əlˈkɑrb, ˈdyu-/ adjective, Automotive. 1. (of an engine) equipped with a pair of carburetors.
noun, British. 1. . noun 1. (Brit) a road on which traffic travelling in opposite directions is separated by a central strip of turf, etc US and Canadian name divided highway