Komponen Komunikasi Data
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Transcript of Komponen Komunikasi Data
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Komponen Komunikasi Data
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Lima Komponen Komunikasi Data• Message: Information(data) to be communicated• Sender• Receiver • Transmission medium: Physical path by which a message travels• Protocol: A set of rules that govern data communication
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Arah Aliran Data
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Topology
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Network Models
1. Layers in the OSI Model2. TCP/IP Protocol Suite3. Addressing
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Pertukaran Data Model OSI
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TCP/IP Protocol Suite
• Host-to-network : Physical and data link layer– No specific protocol
• Network layer– IP(Internet Protocl), ARP(Address Resolution Protocol),
RARP(Reverse ARP), ICMP(Internet Control Message Protocol), IGMO(Internet Group Message Protocol)
• Transport layer– TCP(Transmission Control Protocol), UDP(User Datagram Protocl),
SCTP(Stream Control Transmission Protocol), • Application Layer
– Combined session, presentation, and application layers
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Hubungan Antara Layers Dan Pengalamatan
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Transmisi Digital
1. Digital-to-Digital Conversion2. Analog-to-Digital Conversion3. Transmission Mode
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Frequency Division Multiplexing• FDM is an analog multiplexing technique that combines analog signals• Signals modulate different carrier frequencies• Modulated signals are combined into a composite signal• Channel - Bandwidth range to accommodate a modulated signal• Channels can be separated by strips of unused bandwidth (guard
band) to prevent overlapping
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Media Transmisi
1. Guided Media2. Unguided Media: Wireless
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Jenis/kelas Dari Media Transmisi
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Wired LANs: Ethernet
1. IEEE Standards2. Standard Ethernet3. Fast Ethernet
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IEEE Standards• In 1985, the Computer Society of the IEEE started a project, called
Project 802, to set standards to enable intercommunication among equipment from a variety of manufacturers. Project 802 is a way of specifying functions of the physical layer and the data link layer of major LAN protocols.
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Network Topology
The network topology defines the way in which computers, printers, and other devices are connected. A network topology describes the layout of the wire and devices as well as the paths used by data transmissions.
Introduction to Computer Networks
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The IP Addressing Scheme• Addressing is specified by the Internet Protocol ( IP )• Internet protocol address or IP address– A unique 32-bit binary number– Used for all communication with the host
• Each 32-bit IP address is divided onto two parts– A prefix and a suffix
• Network number– A unique value assigned to each physical network
• The IP address hierarchy guarantees that– Each computer is assigned a unique address– Suffixes can be assigned locally without global coordination
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Classes of IP Addresses• The class of an address determines the boundary between the
network prefix and host prefix• IP divides host address into their primary classes A, B and C• The first four bits of an address determines the class• To use IP multicasting, a set of hosts must agree to share a
multicast address
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Every machine on the Internet has a unique
identifying number, called an IP Address.
A typical IP address looks like this:
216.27.61.137
But computers communicate in binary form.
Basics of Network Addressing
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The same IP address in binary:
11011000.00011011.00111101.10001001
216.27.61.137
IP Addressing
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END OF SESSIONS
Any Questions ?????????????
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