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  2. Replication (computing) - Wikipedia

    en.wikipedia.org/wiki/Replication_(computing)

    Virtual synchrony: involves a group of processes which cooperate to replicate in-memory data or to coordinate actions. The model defines a distributed entity called a process group . A process can join a group and is provided with a checkpoint containing the current state of the data replicated by group members.

  3. State machine replication - Wikipedia

    en.wikipedia.org/wiki/State_machine_replication

    In some cases additional information is available (such as real-time clocks). In these cases, it is possible to achieve more efficient causal or consensus ordering for the Inputs, with a reduced number of messages, fewer message rounds, or smaller message sizes. See references for details [1] [4] [6] [11]

  4. Unreal mode - Wikipedia

    en.wikipedia.org/wiki/Unreal_mode

    In x86 computing, unreal mode, also big real mode, flat real mode, or voodoo mode [1] is a variant of real mode, in which one or more segment descriptors has been loaded with non-standard values, like 32-bit limits allowing access to the entire memory. Contrary to its name, it is not a separate addressing mode that the x86 processors can ...

  5. Comic book price guide - Wikipedia

    en.wikipedia.org/wiki/Comic_book_price_guide

    Though now out of print, this guide remains a valuable resource for information about artists and publishers within the underground comix genre. In 2006, Dan Fogel, who was an advisor and contributor to the Overstreet guide, published Fogel's Underground Comix Price Guide. In 2010, a supplementary magazine was introduced, encompassing ...

  6. Real mode - Wikipedia

    en.wikipedia.org/wiki/Real_mode

    The mode gets its name from the fact that addresses in real mode always correspond to real locations in memory. Real mode is characterized by a 20-bit segmented memory address space (giving 1 MB of addressable memory) and unlimited direct software access to all addressable memory, I/O addresses and peripheral hardware. Real mode provides no ...

  7. x86 memory segmentation - Wikipedia

    en.wikipedia.org/wiki/X86_memory_segmentation

    That selector consists of a 2-bit Requested Privilege Level (RPL), a 1-bit Table Indicator (TI), and a 13-bit index. When attempting address translation of a given logical address, the processor reads the 64-bit segment descriptor structure from either the Global Descriptor Table when TI=0 or the Local Descriptor Table when TI=1.

  8. Self-replicating spacecraft - Wikipedia

    en.wikipedia.org/wiki/Self-replicating_spacecraft

    Probe: which would contain the actual probing instruments & goal-directed AI to guide the construct. Life-support systems: mechanisms to repair and maintain the construct. Factory: mechanisms to harvest resources & replicate itself. Memory banks: store programs for all its components & information gained by the probe. Engine: motor to move the ...

  9. Replica trick - Wikipedia

    en.wikipedia.org/wiki/Replica_trick

    The random energy model (REM) is one of the simplest models of statistical mechanics of disordered systems, and probably the simplest model to show the meaning and power of the replica trick to the level 1 of replica symmetry breaking. The model is especially suitable for this introduction because an exact result by a different procedure is ...