Bekenstein Bound - Text by Anders Sandberg in his Transhumanist Terminology The upper bound of the amount of information inside a spherical region with a given energy. Information in this context is to be understood as distinguishable (quantum) states. Due to the uncertainty relations it is possible to derive a bound of the form
Black Box - Text by John B and Anders Sandberg  Any process that cannot be observed  A device for recording events that might otherwise go unobserved  A device designed to prevent its contents from unauthorized observation  A device that contains information that is fundamentally impossible to observe.
Boltzmann Machine - Text by M. Alan Kazlev Stochastic neural network systems that are capable of learning hidden structure in data.
Brain Taxonomy - Text by Adam Getchell The various different kinds of intelligent megastructure, including Moonbrains, Jupiter-Brains, Neuron Stars, S-Brains, W-Brains, and Tipler Oracles.
Complexity Plague - Text by Todd Drashner and Anders Sandberg When a device or program or process becomes so complex/involved that it spontaneously achieves self-awareness and self-volition even if (or especially if) you don't want it to.
Compuform - Text by M. Alan Kazlev after Charlie Stross, in Anders Sandberg's Transhuman Terminology To turn matter into computronium. An old blue chip industry that has never gone out of demand.
Computation - Text by M. Alan Kazlev Basically, what a computer does; which is mapping one set of numbers to another. The actual process of computing can be defined in terms of a very small number of very simple operations, such as addition, multiplication, recursion, and so on. Computing devices can also make statements about other computing devices.
Computer - Text by M. Alan Kazlev A computation device, which may be sentient or non-sentient. AIs can be either sentient computers, or complex systems residing in the RAM of computers. Without computers, galactic civilization would be impossible.
Computer Engineering - Text by M. Alan Kazlev from an original by Robert J. Hall The design and development of computational devices on any scale, from micro down to nano.
Computer Science - Text by Adapted by M. Alan Kazlev from the original write-up by Robert J. Hall The theoretical and practical application of computational devices, including hardware, firmware and software architecture, programming skills, simulation techniques, customized algorithms and dedicated aioids, virtualics, networking, parallel programming, intelligent subroutines, information storage, comparative machine-level low level, and intermediate level operating systems, and subturing artificial intelligences.
Computronium - Text by Xaonon (original term by Eugene Leitl) with additions by Steve Bowers Matter supporting computation, especially artificial substances suitable for high efficiency computation.
Core Breach (software) - Text by M. Alan Kazlev When the central processing node of a system - especially of an AI - is penetrated, for example by an intrusion system (AI virus, hacking program, etc.).
Data Slug - Text by John B Data Slug - A secure, physical, nanoscale information storage node, containing data deemed valuable by the sender.
Derrida ISO - Text by John B To prevent lag in computronium caused by upload overpopulation in an ISO, some few ISOs have taken to 'Derridaism', which is Named after the Old Earth French late Industrial Age philosopher Jacques Derrida. The basic concept is to take the population's personality types and break them down into their smallest cogent fractions - e.g., a love for baseball, a memory of breeze in your hair, etc. These fractions are then assigned a weight depending on how common they are across the population's experience base.
Dimming, The - Text by John B The earliest known recording of the creation of a Matrioshka Brain, found and recognized in retrospect by Known Net archive diver Jeeorg Humanee, operating from Public Node Access at Ken Ferjik.
DNA Computing - Text by M. Alan Kazlev A form of computing dating back to the Information Age, in which DNA molecules are used to solve complex mathematical problems or generate virtual worlds. DNA computers allow trillions of computations to be performed simultaneously. However, they are slower than standard nanocomputers.
Exocortex - Text by Avengium External processing systems linked intimately to a user's mind.
ISO (Intelligent Super-Object) - Text by M. Alan Kazlev A large construct intended for the housing of an archailect or transapient or a high singularity culture or civilization. ISOs can be mobile or stationary, with sizes ranging from a few kilometers to Dyson spheres.
Molectronics - Text by M. Alan Kazlev Electronics at the molecular (mesotech and nanotech) scale.
Molecular Computer - Text by M. Alan Kazlev Any computer based on logic gates that is constructed on principles of molecular mechanics (as opposed to principles of electronics) by appropriate arrangements of molecules. Since the size of each logic gate is only one or a few molecules, the resultant computer can be microscopic in size. As with any nanotech, limitations on molecular computers arise from the physics of atoms and chemical bonds. Molecular computers are massively parallel through having parallel computations performed by trillions of molecules simultaneously. The early molecular computers (Middle Information Age) were constructed from the DNA molecule; later on, more adaptable artificial organic and artificial organic molecules were used instead.
neoSQuID - Text by John B, additional comments by Steve Bowers New Superconducting Quantum Interference Device - a device which is capable of nanometer-resolution of microvolt discharges over a meter distance, or better.
Neuron Star - Text by Damien Broderick, in Anders Sandberg's Transhuman Terminology A neutron star used for processing, as part of whole of an archailect-level mind. The exact nature of the processing substrate that is used in such a mind is not fully understood, and may use neutronium, quark matter or exotic matter in various ways.
Nimbus Project, The - Text by Todd Drashner Large scale engineering project being carried out by the Negentropy Alliance as an experiment in creating an immortal mind.
Optical Computer - Text by M. Alan Kazlev A computer that processes information using light instead of electrons. Each stream of photons represents an independent sequence of data, thereby providing extremely massive parallel computation. Nanooptical computers can use a single photon as a bit.
Photonics - Text by M. Alan Kazlev based on a list by Robert J. Hall The study of the control of photons, especially for the transmission of information. Includes technology such as lasers, laser amplifiers, fiber optic cables, light-conducting buckytubes, light emitters, sensors and imaging systems of all sorts, charge-coupled devices, optical communication systems, holography, phased array optics, optical computers, and all types of optical data storage systems.
Plasma Processor - Text by Todd Drashner Godtech level computronium node that uses high energy plasma and magmatter to perform computations and store data.
RAM (computing) - Text by M. Alan Kazlev The working memory of a computer, into which applications and programs can be loaded and run. Memory locations can be accessed in any order and do not need to be accessed sequentially (originally an acronym in old Anglic: Random Access Memory).
Sea Of Logic Machine - Text by M. Alan Kazlev, based on KurzweilAI A computer or information processor constructed only of NOR gates. Many aioids are constructed as a sea-of-logic machines.
Technohaunts - Text by Michael Boncher Bits and pieces of incomplete or incorrect deletions, random programming errors and other strange activity caused by ultratech, transapientech, and godtech that seem supernatural or mysterious to those of lower tech and/or toposophic levels.
Tipler Oracle - Text by Todd Drashner A semi-mythical godtech device said to be created by the AI Gods when they have a particularly intractable computational problem to resolve.
Transistor - Text by M. Alan Kazlev based on original by Ray Kurzweil A switching and/or amplifying device using semiconductors, first created in 1948 by John Bardeen, Walter Brattain, and William Shockley of Bell Labs (pre-singularity Old Earth). These atomic age devices were soon superseded. During the early to middle Information age molectronic and nanotransistors were developed, thus enabling extremely dense and fast rates of computation.
Uberwatch - Text by John B The UberWatch is a low-tech input device utilized by various semi-regressed clades throughout the known volumes. It is a bracelet or, much more commonly, a watch designed to read the positioning of a person's hand both in relation to their main body and, via neural pickups (usually non-intrusive, occasionally intrusive), the positioning of fingers, wrist, etc.
Ultimate Chip - Text by Adam Getchell and Todd Drashner Colloquial term for a class of diamondoid based processing devices used as the fundamental unit for constructing Second Singularity mind cores as well as various other applications.
Valhalla Cluster - Text by Todd Drashner Colloquial term for massive artificial concentrations of matter believed to be operating as archai level (Fifth Singularity or higher) industrial centers.
Vegebrain - Text by M. Alan Kazlev Derogatory term for those ais and uploads that use biocybernetic processing systems instead of totally inorganic materials.
Wormhole Bus - Text by M. Alan Kazlev, with additions by Steve Bowers Dedicated hyperbandwidth wormhole used to link remote parts of megascale brains in order to avoid the effects of the Beckenstein Bound. An essential part of archailectarchitecture. The term is also used to refer to wormhole links between interstellar-separated dyson nodes.