2,257 research outputs found
Computer circuit will fit on single silicon chip
A simplified computer logic circuit of two NAND/NOR gates and three additional inputs to accomplish the count and shift function is described. The circuit has capacity for parallel read-in, counting, serial shiftout, complement input and set and reset
Lectures on Computer Logic
Конспект лекцій з дисципліни "Комп'ютерна логіка" англійською мовою для іноземних студентів, які навчаються за напрямом 6.050102 „Комп’ютерна інженерія”
Multiport semiconductor devices
Device, made of a variety of semiconductors, incorporates three or more terminals. Between at least two terminals, switching action occurs. The other terminal pair performs either another switching function or a control function. This device is useful for computer-logic or memory applications
A Sound and Complete Axiomatization of Majority-n Logic
Manipulating logic functions via majority operators recently drew the
attention of researchers in computer science. For example, circuit optimization
based on majority operators enables superior results as compared to traditional
logic systems. Also, the Boolean satisfiability problem finds new solving
approaches when described in terms of majority decisions. To support computer
logic applications based on majority a sound and complete set of axioms is
required. Most of the recent advances in majority logic deal only with ternary
majority (MAJ- 3) operators because the axiomatization with solely MAJ-3 and
complementation operators is well understood. However, it is of interest
extending such axiomatization to n-ary majority operators (MAJ-n) from both the
theoretical and practical perspective. In this work, we address this issue by
introducing a sound and complete axiomatization of MAJ-n logic. Our
axiomatization naturally includes existing majority logic systems. Based on
this general set of axioms, computer applications can now fully exploit the
expressive power of majority logic.Comment: Accepted by the IEEE Transactions on Computer
Noise-based logic: Binary, multi-valued, or fuzzy, with optional superposition of logic states
A new type of deterministic (non-probabilistic) computer logic system
inspired by the stochasticity of brain signals is shown. The distinct values
are represented by independent stochastic processes: independent voltage (or
current) noises. The orthogonality of these processes provides a natural way to
construct binary or multi-valued logic circuitry with arbitrary number N of
logic values by using analog circuitry. Moreover, the logic values on a single
wire can be made a (weighted) superposition of the N distinct logic values.
Fuzzy logic is also naturally represented by a two-component superposition
within the binary case (N=2). Error propagation and accumulation are
suppressed. Other relevant advantages are reduced energy dissipation and
leakage current problems, and robustness against circuit noise and background
noises such as 1/f, Johnson, shot and crosstalk noise. Variability problems are
also nonexistent because the logic value is an AC signal. A similar logic
system can be built with orthogonal sinusoidal signals (different frequency or
orthogonal phase) however that has an extra 1/N type slowdown compared to the
noise-based logic system with increasing number of N furthermore it is less
robust against time delay effects than the noise-based counterpart.Comment: Accepted for publication by Physics Letters A, on December 23, 200
UA11/1 On Campus, Vol. 4, No. 5
On Campus newsletter featuring articles about faculty, staff and events at Western Kentucky University. Regular features are: College News Sponsored Programs Hot off the Press Personnel File
This issue includes articles: Skipper, Bob. The New Technology Skipper, Bob. The Ease of E-Mail Skipper, Bob. Class Comments by Computer Computer Logic Skipper, Bob. Can We Outlaw the Filibuster? - Edward Kearney How Mulch is Enough Think Big Red Way Williamson, Nikole. Lincoln & His Contemporarie
Information Equation of State
Landauer's principle is applied to information in the universe. Once stars
began forming, the increasing proportion of matter at high stellar temperatures
compensated for the expanding universe to provide a near constant information
energy density. The information equation of state was close to the dark energy
value, w = -1, for a wide range of redshifts, 10> z >0.8, over one half of
cosmic time. A reasonable universe information bit content of only 10^87 bits
is sufficient for information energy to account for all dark energy. A time
varying equation of state with a direct link between dark energy and matter,
and linked to star formation in particular, is clearly relevant to the cosmic
coincidence problem.In answering the "Why now?" question we wonder "What next?"
as we expect the information equation of state to tend towards w = 0 in the
future.Comment: 10 pages, 2 figure
Internet Controlled Vehicle
Inspired by the motive to control robots, drones and other vehicles remotely, this article walks through an experimentation of a similar kind conducted on a prototype of a car. The ever growing need for intelligent systems has led to an idea of controlling a car via the internet. 'unmanned taxi service'- a new age model which works under the concepts of networking, computer logic and electronics elicits the idea of a taxi being controlled by a remote host by making use of a controller
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