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Domino Computer
A domino computer is a mechanical computer built using dominoes to represent mechanical Operational amplifier, amplification or Logic gate, logic gating of Digital signal (electronics), digital signals. Basic phenomenon Sequences of standing dominoes (so that each topples the next one) can be arranged to demonstrate digital concepts such as amplifier, amplification and Digital signal (electronics), digital signals. Since digital information is conducted by a string of dominoes, this effect differs from Phenomenon, phenomena where: * ''energy'' is conducted ''without amplification'', thus dissipating; or * ''amplification'' is applied to non-digital signals, allowing noise effects to occur. The Domino Day event shows many constructs, mainly for the purposes of entertainment. Some constructs may remind people of digital circuits, suggesting that not only telegraph-like tools can be shown, but also simple information processing modules can be constructed. It is possible to use th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Domino Logic Gate
Dominoes is a family of tile-based games played with gaming pieces, commonly known as dominoes. Each domino is a rectangular tile, usually with a line dividing its face into two square ''ends''. Each end is marked with a number of spots (also called ''Pip (counting), pips'' or ''dots'') or is blank. The backs of the tiles in a set are indistinguishable, either blank or having some common design. The gaming pieces make up a domino set, sometimes called a ''deck'' or ''pack''. The traditional European domino set consists of 28 tiles, also known as pieces, bones, rocks, stones, men, cards or just dominoes, featuring all combinations of spot counts between zero and six. A domino set is a generic gaming device, similar to playing cards or dice, in that a variety of games can be played with a set. Another form of entertainment using domino pieces is the practice of Domino toppling, domino toppling. The earliest mention of dominoes is from Song dynasty China found in the text ''Former ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemical Synapse
Chemical synapses are biological junctions through which neurons' signals can be sent to each other and to non-neuronal cells such as those in muscles or glands. Chemical synapses allow neurons to form circuits within the central nervous system. They are crucial to the biological computations that underlie perception and thought. They allow the nervous system to connect to and control other systems of the body. At a chemical synapse, one neuron releases neurotransmitter molecules into a small space (the synaptic cleft) that is adjacent to another neuron. The neurotransmitters are contained within small sacs called synaptic vesicles, and are released into the synaptic cleft by exocytosis. These molecules then bind to neurotransmitter receptors on the postsynaptic cell. Finally, the neurotransmitters are cleared from the synapse through one of several potential mechanisms including enzymatic degradation or re-uptake by specific transporters either on the presynaptic cell o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Classes Of Computers
Computers can be classified, or typed, in many ways. Some common classifications of computers are given below. Classes by purpose , - , style="text-align: left;", Notes: Microcomputers (personal computers) Microcomputers became the most common type of computer in the late 20th century. The term “microcomputer” was introduced with the advent of systems based on single-chip microprocessors. The best-known early system was the Altair 8800, introduced in 1975. The term "microcomputer" has practically become an anachronism as it has fallen into disuse. These computers include: * Desktop computers – A case put under or on a desk. The display may be optional, depending on use. The case size may vary, depending on the required expansion slots. Very small computers of this kind may be integrated into the monitor. * Rackmount computers – The cases of these computers fit into 19-inch racks, and maybe space-optimized and very flat. A dedicated display, keyboar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Douglas Hofstadter
Douglas Richard Hofstadter (born February 15, 1945) is an American scholar of cognitive science, physics, and comparative literature whose research includes concepts such as the sense of self in relation to the external world, consciousness, analogy-making, artistic creation, literary translation, and discovery in mathematics and physics. His 1979 book '' Gödel, Escher, Bach: An Eternal Golden Braid'' won both the Pulitzer Prize for general nonfiction"General Nonfiction" . ''Past winners and finalists by category''. The Pulitzer Prizes. Retrieved March 17, 2012. and a (at that time called The American Book Award) for Science. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
I Am A Strange Loop
''I Am a Strange Loop'' is a 2007 book by Douglas Hofstadter, examining in depth the concept of a '' strange loop'' to explain the sense of "I". The concept of a ''strange loop'' was originally developed in his 1979 book '' Gödel, Escher, Bach''. Hofstadter had previously expressed disappointment with how ''Gödel, Escher, Bach'', which won the Pulitzer Prize in 1980 for general nonfiction, was received. In the preface to its 20th anniversary edition, Hofstadter laments that the book was perceived as a hodgepodge of neat things with no central theme. He states: "GEB is a very personal attempt to say how it is that animate beings can come out of inanimate matter. What is a self, and how can a self come out of stuff that is as selfless as a stone or a puddle?" Hofstadter seeks to remedy this problem in ''I Am a Strange Loop'' by focusing on and expounding the central message of ''Gödel, Escher, Bach''. He demonstrates how the properties of self-referential systems, demonstra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Domino Logic
Domino logic is a CMOS-based evolution of the dynamic logic techniques based on either PMOS or NMOS transistors. It allows a rail-to-rail logic swing. It was developed to speed up circuits, solving the premature cascade problem, typically by inserting small and fast pFETs between domino stages to constrain the interstage cascade velocity to a curtailed maximum—a curtailed ''deterministic'' maximum—without requiring other circuit design interlocks. Terminology The term derives from the fact that in domino logic (cascade structure consisting of several stages), each stage ripples the next stage for evaluation, similar to dominoes falling one after the other. Dynamic logic drawbacks In dynamic logic, a problem arises when cascading one gate to the next. The precharge "1" state of the first gate may cause the second gate to discharge prematurely, before the first gate has reached its correct state. This uses up the "precharge" of the second gate, which cannot be restored ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
YouTube
YouTube is a global online video platform, online video sharing and social media, social media platform headquartered in San Bruno, California. It was launched on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim. It is owned by Google, and is the List of most visited websites, second most visited website, after Google Search. YouTube has more than 2.5 billion monthly users who collectively watch more than one billion hours of videos each day. , videos were being uploaded at a rate of more than 500 hours of content per minute. In October 2006, YouTube was bought by Google for $1.65 billion. Google's ownership of YouTube expanded the site's business model, expanding from generating revenue from advertisements alone, to offering paid content such as movies and exclusive content produced by YouTube. It also offers YouTube Premium, a paid subscription option for watching content without ads. YouTube also approved creators to participate in Google's Google AdSens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Matt Parker
Matthew Thomas Parker (born 22 December 1980) is an Australian recreational mathematician, author, comedian, YouTube personality and science communicator based in the United Kingdom. His book ''Humble Pi'' was the first maths book in the UK to be a Sunday Times No. 1 bestseller. Parker was the Public Engagement in Mathematics Fellow at Queen Mary University of London. He is a former maths teacher and has helped popularise maths via his tours and videos. Early life and education Matt Parker was born in Perth, Australia, and grew up in the northern suburb of Duncraig. He began showing an interest in maths and science from a young age, and at one point was part of his school's titration team. Parker went to the University of Western Australia and started off studying mechanical engineering before he "realized the very real risk of being employable at the end of it." He switched into physics and later mathematics. His love of maths led him to want a job in the subject. While a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
XOR Gate
XOR gate (sometimes EOR, or EXOR and pronounced as Exclusive OR) is a digital logic gate that gives a true (1 or HIGH) output when the number of true inputs is odd. An XOR gate implements an exclusive or (\nleftrightarrow) from mathematical logic; that is, a true output results if one, and only one, of the inputs to the gate is true. If both inputs are false (0/LOW) or both are true, a false output results. XOR represents the inequality function, i.e., the output is true if the inputs are not alike otherwise the output is false. A way to remember XOR is "must have one or the other but not both". An XOR gate may serve as a "programmable inverter" in which one input determines whether to invert the other input, or to simply pass it along with no change. Hence it functions as a inverter A power inverter, inverter or invertor is a power electronic device or circuitry that changes direct current (DC) to alternating current (AC). The resulting AC frequency obtained depends on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IMPLY Gate
The IMPLY gate is a digital logic gate that implements a logical conditional pictured with a right-facing arrow (\rightarrow). F=A'+B ( Implication) Logic_gate_symbols. The_List_of_logic_symbols.html" ;"title="Logic_gate#Symbols.html" ;"title="Institute_of_Electrical_and_Electronics_Engineers.html" "title="f A is true output follows B otherwise output is always true. Symbols There are two symbols for IMPLY gates: the traditional symbol and the Institute of Electrical and Electronics Engineers">IEEE The Institute of Electrical and Electronics Engineers (IEEE) is a 501(c)(3) professional association for electronic engineering and electrical engineering (and associated disciplines) with its corporate office in New York City and its operation ... symbol. For more information see Logic gate#Symbols">Logic gate symbols. The List of logic symbols">logic symbol → can be used to denote IMPLY in algebraic expressions. See also *NIMPLY gate *AND gate *Inverter (logic g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Functional Completeness
In logic, a functionally complete set of logical connectives or Boolean operators is one which can be used to express all possible truth tables by combining members of the set into a Boolean expression.. ("Complete set of logical connectives").. (" nctional completeness of set of logical operators"). A well-known complete set of connectives is . Each of the singleton sets and is functionally complete. A gate or set of gates which is functionally complete can also be called a universal gate / gates. A functionally complete set of gates may utilise or generate 'garbage bits' as part of its computation which are either not part of the input or not part of the output to the system. In a context of propositional logic, functionally complete sets of connectives are also called (expressively) adequate.. (Defines "expressively adequate", shortened to "adequate set of connectives" in a section heading.) From the point of view of digital electronics, functional completeness means that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
