| slovo | definícia |
topology
(encz) | topology,topologie n: Zdeněk Brož |
Topology
(gcide) | Topology \To*pol"o*gy\, n. [Gr. ? place + -logy.]
The art of, or method for, assisting the memory by
associating the thing or subject to be remembered with some
place. [R.]
[1913 Webster]
2. a branch of mathematics which studies the properties of
geometrical forms which retain their identity under
certain transformations, such as stretching or twisting,
which are homeomorphic. See also topologist.
[PJC]
3. configuration, especially in three dimensions; -- used, e.
g. of the configurations taken by macromolecules, such as
superhelical DNA.
[PJC] |
topology
(wn) | topology
n 1: topographic study of a given place (especially the history
of the place as indicated by its topography); "Greenland's
topology has been shaped by the glaciers of the ice age"
2: the study of anatomy based on regions or divisions of the
body and emphasizing the relations between various structures
(muscles and nerves and arteries etc.) in that region [syn:
regional anatomy, topographic anatomy, topology]
3: the branch of pure mathematics that deals only with the
properties of a figure X that hold for every figure into
which X can be transformed with a one-to-one correspondence
that is continuous in both directions [syn: topology,
analysis situs]
4: the configuration of a communication network [syn:
topology, network topology] |
topology
(foldoc) | topology
1. The branch of mathematics dealing with
continuous transformations.
2. Which hosts are directly connected to which
other hosts in a network. Network layer processes need to
consider the current network topology to be able to route
packets to their final destination reliably and efficiently.
(2001-03-29)
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| | podobné slovo | definícia |
logical topology
(encz) | logical topology, n: |
loop topology
(encz) | loop topology, n: |
mesh topology
(encz) | mesh topology, n: |
network topology
(encz) | network topology, n: |
physical topology
(encz) | physical topology, n: |
star topology
(encz) | star topology, n: |
Topology
(gcide) | Topology \To*pol"o*gy\, n. [Gr. ? place + -logy.]
The art of, or method for, assisting the memory by
associating the thing or subject to be remembered with some
place. [R.]
[1913 Webster]
2. a branch of mathematics which studies the properties of
geometrical forms which retain their identity under
certain transformations, such as stretching or twisting,
which are homeomorphic. See also topologist.
[PJC]
3. configuration, especially in three dimensions; -- used, e.
g. of the configurations taken by macromolecules, such as
superhelical DNA.
[PJC] |
bus topology
(wn) | bus topology
n 1: the topology of a network whose components are connected by
a busbar [syn: bus topology, bus] |
logical topology
(wn) | logical topology
n 1: the way the network works; "a network that looks like a
star can have the logical topology of a bus" |
loop topology
(wn) | loop topology
n 1: the topology of a network whose components are serially
connected in such a way that the last component is
connected to the first component [syn: loop topology,
loop] |
mesh topology
(wn) | mesh topology
n 1: the topology of a network whose components are all
connected directly to every other component [syn: {mesh
topology}, mesh] |
network topology
(wn) | network topology
n 1: the configuration of a communication network [syn:
topology, network topology] |
physical topology
(wn) | physical topology
n 1: the appearance of the network; "the physical topologies of
local area networks include the bus, the ring and the star" |
star topology
(wn) | star topology
n 1: the topology of a network whose components are connected to
a hub [syn: star topology, star] |
bus topology
(foldoc) | bus
bus topology
computer bus
A set of electrical conductors
(wires, PCB tracks or connections in an integrated circuit)
connecting various "stations", which can be functional units
in a computer or nodes in a network. A bus is a
broadcast channel, meaning that each station receives every
other station's transmissions and all stations have equal
access to the bus.
Various schemes have been invented to solve the problem of
collisions: multiple stations trying to transmit
at once, e.g. CSMA/CD, bus master.
The term is almost certainly derived from the electrical
engineering term "bus bar" - a substantial, rigid power supply
conductor to which several connections are made. This was
once written "'bus bar" as it was a contraction of "omnibus
bar" - a connection bar "for all", by analogy with the
passenger omnibus - a conveyance "for all".
More on derivation (/pub/misc/omnibus.html).
There are busses both within the CPU and connecting it to
external memory and peripheral devices. The data bus,
address bus and control signals, despite their names, really
constitute a single bus since each is useless without the
others.
The width of the data bus is usually specified in bits and
is the number of parallel connectors. This and the {clock
rate} determine the bus's data rate (the number of bytes per
second which it can carry). This is one of the factors
limiting a computer's performance. Most current
microprocessors have 32-bit busses both internally and
externally. 100 or 133 megahertz bus clock rates are
common. The bus clock is typically slower than the processor
clock.
Some processors have internal busses which are wider than
their external busses (usually twice the width) since the
width of the internal bus affects the speed of all operations
and has less effect on the overall system cost than the width
of the external bus.
Various bus designs have been used in the PC, including
ISA, EISA, Micro Channel, VL-bus and PCI. Other
peripheral busses are NuBus, TURBOchannel, VMEbus, MULTIBUS and
STD bus.
See also bus network.
Ukranian (http://open-taxi.com/mynews/~adrian/10).
(2010-07-10)
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linear topology
(foldoc) | linear topology
A linear topology on a left A-module M is a topology
on M that is invariant under translations and admits a
fundamental system of neighborhood of 0 that consists of
submodules of M. If there is such a topology, M is said to be
linearly topologized. If A is given a discrete topology, then M
becomes a topological A-module with respect to a linear topology.
[Wikipedia]
(2014-06-30)
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network topology
(foldoc) | network topology
The "shape" of a network, how the nodes are
connected to each other. Common topologies are bus network,
star network and ring network.
(2009-07-16)
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ring topology
(foldoc) | ring network
ring topology
A network topology in which all nodes
are connected to a single wire in a ring or point-to-point.
There are no endpoints. This topology is used by token ring
networks.
Compare: bus network, star network.
(2000-11-16)
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