Some virtual communities explicitly refer to the concept of cyberspace, for example Linden Lab calling their customers " Residents " of Second Life, while all such communities can be positioned " in cyberspace " for explanatory and comparative purposes ( as did Sterling in The Hacker Crackdown, followed by many journalists ), integrating the metaphor into a wider cyber-culture.

Some contemporary philosophers and scientists ( e. g. David Deutsch in The Fabric of Reality ) employ virtual reality in various thought experiments.

Some models supported separate instruction and data spaces for an effective virtual address size of 128 kB within a physical address size of up to 4 MB.

Some APAs are still active, and some are published as virtual " e-zines ," distributed on the Internet.

Some communities prefer to create virtual insurance amongst themselves by other means than contractual risk transfer, which assigns explicit numerical values to risk.

Some of these instruments produce a virtual image when applied to the human eye ; others produce a real image which can be captured on photographic film or an optical sensor, or can be viewed on a screen.

Some RP MUDs provide an immersive gaming environment, while others only provide a virtual world with no game elements.

Some therapists use virtual reality or imagery exercise to desensitize patients to the feared entity.

Some KA10 machines, first at MIT, and later at Bolt, Beranek and Newman ( BBN ), were modified to add virtual memory and support for demand paging, as well as more physical memory.

Some researchers have explored the benefits of enabling virtual communities to self-organize and introduce incentives for resource sharing and cooperation, arguing that the social aspect missing from today's P2P systems should be seen both as a goal and a means for self-organized virtual communities to be built and fostered.

Some virtual phone cards allow customers to view their call detail reports ( CDRs ) online by logging in to their account.

Some installations use Linux for zSeries to run Web servers, where Linux runs as the operating system within many virtual machines.

Some virtual machines emulate hardware that only exists as a detailed specification.

Some systems, such as the Burroughs B5500, use segmentation instead of paging, dividing virtual address spaces into variable-length segments.

Some analyses using the semiclassical approach to incorporating quantum effects into general relativity indicate that a feedback loop of virtual particles would circulate through the wormhole with ever-increasing intensity, destroying it before any information could be passed through it, in keeping with the chronology protection conjecture.

Some Transport Layer protocols, for example TCP, but not UDP, support virtual circuits provide connection oriented communication over an underlying packet oriented datagram network. Where it assures the delivery of packets in the order in which they were sent and assure that they are free of errors. The datagram transportation deliver the packets randomly and broadcast it to multiple nodes.

Some of this software ( 3D Topicscape ) works independently from virtual worlds and simply uses 3D to support user " in concept creation, planning, organization, development and actualization ".

Some virtual machines that support bytecode for Smalltalk, the Java virtual machine, and Microsoft's Common Language Runtime virtual machine as their ISA implement it by translating the bytecode for commonly used code paths into native machine code, and executing less-frequently-used code paths by interpretation ; Transmeta implemented the x86 instruction set atop VLIW processors in the same fashion.

Some exotic instruction sets do not have an opcode field ( such as Transport Triggered Architectures ( TTA ) or the Forth virtual machine ), only operand ( s ).

Some people who are in an online relationship also participate in cybersex, which is a virtual sex encounter in which two or more people who are connected remotely via computer network send each other sexually explicit messages describing a sexual experience.

Some APAs are still active as hardcopy publications, and some are published as virtual " e-zines ," distributed on the internet.

Some printers can print documents stored on memory cards or from digital cameras and scanners.

Some of these games, such as Pyramid from Battlestar Galactica, become real card games as the holder of the intellectual property develops and markets a suitable deck and ruleset for the game, while others, such as " Exploding Snap " from the Harry Potter franchise, lack sufficient descriptions of rules, or depend on cards or other hardware that are infeasible or physically impossible.

Some tracks were composed using Eno and Peter Schmidt's Oblique Strategies cards: " Boys Keep Swinging " entailed band members swapping instruments, " Move On " used the chords from Bowie's early composition " All the Young Dudes " played backwards, and " Red Money " took backing tracks from " Sister Midnight ", a piece previously composed with Iggy Pop.

Some publishers design games that contain instructions and game elements in more than one language, e. g. the game Ursuppe comes with rules and cards in both German and English ; Khronos features instructions in French, English, and German, and a Swiss game, Enchanted Owls, provides French, German, Italian, and Romansh rules.

Some of the lindy-hoppers had cards printed with their names on them and became dance professors teaching the tourists.

Some retailers with banking operations also award points for every pound spent on their credit cards, as well as bonus points for purchasing financial services.

Some computers ( which typically have high-performance microprocessors, large amounts of RAM, and high-performance video cards ) use a water-cooling system instead of many fans.

Some computer sound cards include a standard MIDI connector, whereas others connect by any of various means that include the D-subminiature DA-15 game port, USB, FireWire, Ethernet or a proprietary connection.

Some devices connected via PCs ' DB-25 parallel port, or through the joystick port found in many PC sound cards.

Some typical English-style playing cards from the Bicycle Playing Cards | Bicycle brand

Some PDAs use microSD cards, which are electronically compatible with SD cards, but have a much smaller physical size.

Some players use a house rule that if a player receives a hand with an abundance of nines ( variously, " a hand of 6 nines, or 5 nines and no meld ", or " 4 nines and no Aces, or 5 nines and only one Ace ", for example ), they can toss in their hand and declare a misdeal ; the cards are then re-dealt by the same dealer.

Some role-playing game systems which describe themselves as " storytelling games " nevertheless use randomisers rather than story in the arbitration of the rules, often in the form of a contest of Rock, Paper, Scissors or a card drawn from a deck of cards.

Some of the men, including those in drag, used their draft cards as identification.

Some current editions of cards based on the Marseilles design go back to a deck of a particular Marseilles design that was printed by Nicolas Conver in 1760.

Some decks exist primarily as artwork ; and such art decks sometimes contain only the 22 trump cards.

Some cards are supported by vendors themselves via binary-only drivers.

Some RFID cards, in particular EPC UHF Gen 2 RF cards, use a variant called " Miller sub-carrier coding ".

Some people — to further the realism of their homemade simulator — buy used cards and racks that run the same software used by the original machine.

Some smaller decks of cards have infinite games, while others do not.

* Some Panasonic AVCHD camcorders ( AG-HMC80, AG-AC130, AG-AC160 ) record DV video onto Secure Digital memory cards.