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Star Network Topology

Star Network Topology

Star is a basic computer network topology in which all nodes (computers and peripheral devices) of the network are connected to the central hub or switch with a point-to-point connection, forming a physical network segment. Such network segment can function separately or as a part of complex network topology. The switch is a server, the peripherals are the clients. The large workload and functions of network management are entrusted on the central computer, all information exchange goes through it, so it must to be obligatory the most powerful. The star network topology is a simple topology for design and implementation. Its advantages are high performance, flexible administration capabilities, simplicity of adding additional nodes and search of faults, the fact that a failure of one workstation doesn't affect the work of entire network. But the failure of central hub will result the failure of whole network or network segment - it's the main disadvantage. Use the ConceptDraw PRO with Computer and Networks solution to designing Star Network Topology Diagrams fast and easy. Read more

Hybrid Network Topology

A network topology is the topological structure or the arrangement of different elements of computer network. There are several basic types of network topologies, such as star, ring, bus, mesh. But the most popular is a combination of two or more diverse basic network topologies, which is known as hybrid network topology. The examples of hybrid topology are: star-bus, star-ring topologies, etc. Each resulting hybrid topology has its own features, advantages and limitations of its components. Hybrid network topologies are more flexible, reliable, and have increased fault tolerance, the faults in them can be easily diagnosed and corrected, new nodes can be easily added. But at the same time hybrid topologies often are sufficiently expensive and difficult for managing. ConceptDraw PRO diagramming and vector drawing software supplied with the tools of Computer Network Diagrams solution from Computer and Networks area is perfect for schematic description various types of computer network topologies and easy designing Hybrid network topology diagrams. Read more
"Star networks are one of the most common computer network topologies. In its simplest form, a star network consists of one central switch, hub or computer, which act as a conduit to transmit messages. This consists of a central node, to which all other nodes are connected; this central node provides a common connection point for all nodes through a hub. In star topology, every node (computer workstation or any other peripheral) is connected to a central node called a hub or switch. The switch is the server and the peripherals are the clients. Thus, the hub and leaf nodes, and the transmission lines between them, form a graph with the topology of a star." [Star network. Wikipedia]
The computer network diagram example "10Base-T star topology" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Computer and Networks solution from the Computer and Networks area of ConceptDraw Solution Park. Read more
Star topology
Star topology, workstation, hub,
The vector stencils library "Stars and planets" contains 20 clipart images of sun, solar system planets and moon.
"A star is a massive, luminous sphere of plasma held together by its own gravity. The nearest star to Earth is the Sun, which is the source of most of the planet's energy. Some other stars are visible from Earth during the night, appearing as a multitude of fixed luminous points due to their immense distance. Historically, the most prominent stars were grouped into constellations and asterisms, and the brightest stars gained proper names. Extensive catalogues of stars have been assembled by astronomers, which provide standardized star designations." [Star. Wikipedia]
"A planet is an astronomical object orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighbouring region of planetesimals. ... As scientific knowledge advanced, human perception of the planets changed, incorporating a number of disparate objects. In 2006, the International Astronomical Union (IAU) officially adopted a resolution defining planets within the Solar System. This definition has been both praised and criticized and remains disputed by some scientists because it excludes many objects of planetary mass based on where or what they orbit. Although eight of the planetary bodies discovered before 1950 remain "planets" under the modern definition, some celestial bodies, such as Ceres, Pallas, Juno, Vesta (each an object in the Solar asteroid belt), and Pluto (the first-discovered trans-Neptunian object), that were once considered planets by the scientific community are no longer viewed as such." [Planet. Wikipedia]
The clipart example "Design elements - Stars and planets" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Astronomy solution from the Science and Education area of ConceptDraw Solution Park. Read more
Stars and planets clipart
Stars and planets clipart, yellow giant, white dwarf, red giant, red dwarf, planets, half of the sun, sun, blue giant, black hole, Venus, Uranus, Sun, Solar system, Saturn, Pluto, Neptune, Moon, Mercury, Mars, Jupiter, Earth,

Hierarchical Network Topology

This sample was created in ConceptDraw PRO diagramming and vector drawing software using the Computer and Networks solution from Computer and Networks area of ConceptDraw Solution Park. This sample shows the Hierarchical network topology. A Hierarchical network topology interconnects multiple groups that are located on the separate layers to form a larger network. Each layer concentrates on the specified functions, this allows to choose the right equipment for the layer. Read more
The vector stencils library "Southern constellations" contains 22 icons of Southern constellations maps.
Use these star constellation charts for drawing astronomical diagrams and illustrations in ConceptDraw PRO diagramming and vector drawing software extended with the Astronomy solution from the Science and Education area in ConceptDraw Solution Park. Read more
Apus, Apus,
Ara, Ara,
Carina, Carina,
Chamaeleon, Chamaeleon,
Circinus, Circinus,
Crux, Crux,
Dorado, Dorado,
Horologium, Horologium,
Hydrus, Hydrus,
Indus, Indus,
Mensa, Mensa,
Musca, Musca,
Norma, Norma,
Octans, Octans,
Pavo, Pavo,
Phoenix, Phoenix,
Pictor, Pictor,
Reticulum, Reticulum,
Telescopium, Telescopium,
Triangulum Australe
Triangulum Australe, Triangulum Australe,
Tucana, Tucana,
Volans, Volans,
The vector stencils library "Northern constellations" contains 6 star constellation maps for drawing astronomical diagrams.
"There are no markings on the night sky, though there exist many sky maps to aid stargazers in identifying constellations and other celestial objects. Constellations are prominent because their stars tend to be brighter than other nearby stars in the sky. Different cultures have created different groupings of constellations based on differing interpretations of the more-or-less random patterns of dots in the sky. Constellations were identified without regard to distance to each star, but instead as if they were all dots on a dome.
Orion is among the most prominent and recognizable constellations. The Big Dipper (which has a wide variety of other names) is helpful for navigation in the northern hemisphere because it points to Polaris, the north star.
The pole stars are special because they are approximately in line with the Earth's axis of rotation so they appear to stay in one place while the other stars rotate around them through the course of a night (or a year)." [Night sky. Wikipedia]
The example "Design elements - Northern constellations" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Astronomy solution from the Science and Education area of ConceptDraw Solution Park. Read more
Northern constellations - Star maps
Northern constellations - Star maps, Ursa Minor, Ursa Major, Draco, Cepheus, Cassiopeia, Camelopardalis,

Network Printer

Special libraries of highly detailed, accurate shapes and computer graphics, servers, hubs, switches, printers, mainframes, face plates, routers etc. Read more
The vector stencils library "Plane geometry" contains 27 plane geometric figures.
Use these shapes to draw your geometrical diagrams and illustrations in the ConceptDraw PRO diagramming and vector drawing software extended with the Mathematics solution from the Science and Education area of ConceptDraw Solution Park. Read more
Circular sector
Circular sector, sector,
Right triangle
Right triangle, right triangle,
Rectangle, rectangle,
Square, square,
Pentagon, pentagon,
Isosceles trapezium
Isosceles trapezium, isosceles trapezium,
Parallelogram, parallelogram,
Trapezium, trapezium,
Three-pointed star
Three-pointed star, star,
Four-pointed star
Four-pointed star, star,
Five-pointed star
Five-pointed star, star,
Six-pointed star
Six-pointed star, star,
Seven-pointed star
Seven-pointed star, star,
Eight-pointed star
Eight-pointed star, star,
Triangle, triangle,
Equilateral triangle
Equilateral triangle, triangle,
Right triangle 2
Right triangle 2, right triangle,
Right triangle, angle box
Right triangle, angle box, right triangle,
Right triangle 3
Right triangle 3, right triangle,
Hexagon, hexagon,
Regular hexagon
Regular hexagon, hexagon,
Regular pentagon
Regular pentagon, pentagon,
Regular heptagon
Regular heptagon, heptagon,
Regular octagon
Regular octagon, octagon,
Rhombus, diamond,
Circle, circle,
Ellipse, ellipse,
Design elements - Zodiac constellations
The vector stencils library "Zodiac constellations" contains 12 star constellation charts.
"In Western astrology, astrological signs are the twelve 30ยบ sectors of the ecliptic, starting at the vernal equinox (one of the intersections of the ecliptic with the celestial equator), also known as the First Point of Aries. The order of the astrological signs is Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius and Pisces." [Astrological sign. Wikipedia]
The zodiacal signs are distinct from the constellations associated with them, not only because of their drifting apart due to the precession of equinoxes but also because the physical constellations take up varying widths of the ecliptic, so the sun is not in each constellation for the same amount of time. Thus, Virgo takes up five times as much ecliptic longitude as Scorpius. The zodiacal signs are an abstraction from the physical constellations, and each represent exactly one twelfth of the full circle, or the longitude traversed by the Sun in about 30.4 days.
Some "parazodiacal" constellations are also touched by the paths of the planets. The MUL.APIN lists Orion, Perseus, Auriga, and Andromeda. Furthermore, there are a number of constellations mythologically associated with the zodiacal ones : Piscis Austrinus, The Southern Fish, is attached to Aquarius. In classical maps, it swallows the stream poured out of Aquarius' pitcher, but perhaps it formerly just swam in it. Aquila, The Eagle, was possibly associated with the zodiac by virtue of its main star, Altair. Hydra in the Early Bronze Age marked the celestial equator and was associated with Leo, which is shown standing on the serpent on the Dendera zodiac. Corvus is the Crow or Raven mysteriously perched on the tail of Hydra.
Due to the constellation boundaries being redefined in 1930 by the International Astronomical Union, the path of the ecliptic now officially passes through thirteen constellations: the twelve traditional 'zodiac constellations' plus Ophiuchus, the bottom part of which interjects between Scorpio and Sagittarius. Ophiuchus is an anciently recognized constellation, catalogued along with many others in Ptolemy's Almagest, but not historically referred to as a zodiac constellation. The inaccurate description of Ophiuchus as a sign of the zodiac drew media attention in 1995, when the BBC Nine O'Clock News reported that "an extra sign of the zodiac has been announced by the Royal Astronomical Society". There had been no such announcement, and the report had merely sensationalized the 67-year-old 'news' of the IAU's decision to alter the number of designated ecliptic constellations." [Zodiac. Wikipedia]
The star maps example "Design elements - Zodiac constellations" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Astronomy solution from the Science and Education area of ConceptDraw Solution Park. Read more
Star constellation charts
Star constellation charts, Virgo, Taurus, Scorpius, Sagittarius, Pisces, Libra, Leo, Gemini, Capricornus, Cancer, Aries, Aquarius,