06 jaringan komputer
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Transcript of 06 jaringan komputer
PENGANTAR ILMU KOMPUTERKomunikasi Data dan Jaringan Komputer
04/13/23
Zulfadli Sulthan - PTIK - UNM 1
Sistem Komunikasi Data
Melibatkan minimal 2 simpul Simpul bisa berupa komputer maupun
peralatan lain Simpul berperan sebagai pengirim dan/atau
penerima data Dihubungkan oleh media transmisi Data yg ditransmisikan berupa isyarat
listrik
04/13/23Zulfadli Sulthan - PTIK - UNM
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Gangguan Komunikasi Data
Data yg sampai kepada penerima bisa tidak sama dg yg disampaikan pengirim
Penyebab Utama Atenuasi
Pelemahan sinyal akibat jarak Distorsi Tunda
Pengaruh pada waktu penerimaan Derau
Penambahan data yg tidak perlu pada saat transmisi data
04/13/23Zulfadli Sulthan - PTIK - UNM
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Arah Transmisi
Menyatakan arah isyarat dalam media transmisi Simplex / One way
Tidak dapat bertindak sebagai pengirim dan penerima sekaligus
Half-Duplex Mengirim dan menerima data bergantian
Full-Duplex Mengirim dan menerima data berbarengan
04/13/23Zulfadli Sulthan - PTIK - UNM
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Media Transmisi
Penghubung antara pengirim dan penerima u/ melewatkan data Media kabel Media nirkabel
Media Kabel Twisted Pair Cable
UTP STP
Coaxial Fiber Optic
04/13/23Zulfadli Sulthan - PTIK - UNM
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Jaringan Komputer
Hubungan dua atau lebih komputer yang bertujuan u/ melakukan pertukaran data
Memungkinkan berbagi sumberdaya Jenis jaringan menurut rentang geo
LAN Mencakup area yg terbatas (<1 Km)
MAN Mencakup area dg rentang satu kota (10-45
Km) WAN
Menghubungkan antar kota atau lebih luas lagi.04/13/23Zulfadli Sulthan - PTIK - UNM
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Topologi Jaringan
Susunan komputer secara fisik dalam suatu jaringan Bus Ring Star Extended Star Hierarchial Mesh
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Bus Topology
All of its nodes connected directly to one link No other connections between nodes Each host is wired to a common wire.
One advantage of this topology is that all hosts are connected to each other, and thus, can communicate directly.
One disadvantage of this topology is that a break in the cable disconnects hosts from each other.
Enables all networking devices to see all signals from all other devices Traffic problems and collisions are
common.
04/13/23 Zulfadli Sulthan - PTIK - UNM 8
Ring Topology
Single closed ring consisting of nodes and links. Each node connected to only two
adjacent nodes. All devices wired directly to each
other. In order for information to flow,
each station must pass the information to its adjacent station.
04/13/23 Zulfadli Sulthan - PTIK - UNM 9
Star Topology
Has a central node with all links to other nodes radiating from it and allows no other links.
Its primary advantage is that it allows all other nodes to communicate with each other, conveniently.
Its primary disadvantage is that if the central node fails, the whole network becomes disconnected..
The flow of all information would go through one device.
04/13/23 Zulfadli Sulthan - PTIK - UNM 10
Extended Star Topology
Repeats a star topology, except that each node that links to the center node is, also, the center of another star.
The advantage of this is that it keeps wiring runs shorter, and limits the number of devices that need to interconnect to any one central node.
An extended star topology is very hierarchical, and information is encouraged to stay local
04/13/23 Zulfadli Sulthan - PTIK - UNM 11
Hierarchical Topology
Similar to the extended star topology uses a trunk node from which it,
then, branches to other nodes. The trunk is a wire that has
several layers of branches. The flow of information is
hierarchical.
04/13/23 Zulfadli Sulthan - PTIK - UNM 12
Mesh Topology
Every node is linked directly to every other node.
The advantages are that Should any link fail to function, information
can flow through any number of other links to reach its destination.
Allows information to flow along many paths on its way through the network.
The primary physical disadvantage is the amount of media for the links, and the amount of connections to the links becomes overwhelming.
Depends greatly on the devices used.
04/13/23 Zulfadli Sulthan - PTIK - UNM 13
Perangkat Interkoneksi Antarjaringan Interkoneksi Antarjaringan
Hubungan antara dua buah jaringan atau lebih.
Perangkatnya Repeater / Hub Bridge / Switch Router
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Thankyou
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