pengantar teknologi informasi
DESCRIPTION
Pengantar Teknologi Informasi. Networking. Agenda. Pengenalan Protokol Jaringan Pengenalan Wireless Communication. Location B. Location A. J’aimae les lapins. I like rabbits. Message. Information for the Remote Translator. L: Dutch Ik hou van konijnen. L: Dutch Ik hou van - PowerPoint PPT PresentationTRANSCRIPT
Pengantar Teknologi InformasiPengantar Teknologi Informasi
Networking
Agenda
Pengenalan Protokol Jaringan Pengenalan Wireless Communication
Mengapa ada Protokol Jaringan?
I like rabbits
L: DutchIk hou vankonijnen
L: DutchIk hou vankonijnen
Fax #:---L: DutchIk hou vankonijnen
Fax #:---L: DutchIk hou vankonijnen
J’aimaeles lapins
Information for the Remote Translator
Informationfor the RemoteSecretary
Location A Location B
Message
Mengapa ada Protokol Jaringan?
I like rabbits
L: DutchIk hou vankonijnen
L: DutchIk hou vankonijnen
Fax #:---L: DutchIk hou vankonijnen
Fax #:---L: DutchIk hou vankonijnen
J’aimeles lapins
Information for the remote translator
Informationfor the remotesecretary
Location A Location B
1
2
3Layers
Message
Model Layer Pada Jaringan Mengurangi
kompleksitas (satu masalah besar diubah dalam 7 bagian kecil )
Menstandarkan antarmuka
Memudahkan belajar mengajar
7 Application
6 Presentation
5 Session
4 Transport
3 Network
2 Data Link
1 Physical
Fungsi Device pada Layer
7Application
6Presentation
5 Session
4 Transport
3 Network
2 Data Link
1 Physical
NIC Card
Hub
Layer Host dan Media
7 Application
6 Presentation
5 Session
4 Transport
3 Network
2 Data Link
1 Physical
Host layers:Host layers: Menyediakan data yang akurat yang dikirim antar komputer
Media layers:Media layers: Mengontrol pengiriman pesan secara fisik antar jaringan}}
Fungsi Setiap Layer
Provides network services to application processes (such as electronic mail, file transfer, and terminal emulation)
7 Application
Fungsi Setiap Layer
Network services to applicationsNetwork services to applications
• Ensures data is readable by receiving system
• Format of data• Data structures• Negotiates data transfer
syntax for application layer
7 Application
6 Presentation Data representation
Fungsi Setiap Layer
Inter-host communication• Establishes, manages, and
terminates sessions between applications
7 Application
6 Presentation
5 Session
Network services to applicationsNetwork services to applications
Data representationData representation
Fungsi Setiap Layer
7 Application
6 Presentation
5 Session
Transport4
Inter-host communicationInter-host communication
Network services to applicationsNetwork services to applications
Data representationData representation
End-to-end connection reliability
• Concerned with data transport issues between hosts
• Data transport reliability• Establishes, maintains, and
terminates virtual circuits• Fault detection and recovery• Information flow control
Fungsi Setiap Layer
7 Application
6 Presentation
5 Session
Transport4
Network3
Inter-host communicationInter-host communication
Network services to applicationsNetwork services to applications
Data representationData representation
End-to-end connection End-to-end connection reliabilityreliability
Addresses and best path• Provides connectivity and path
selection between two end systems
• Domain of routing
Fungsi Setiap Layer
7 Application
6 Presentation
5 Session
Transport4
Network3
Data Link2
Inter-host communicationInter-host communication
Network services to applicationsNetwork services to applications
Data representationData representation
End-to-end connection End-to-end connection reliabilityreliability
Addresses and best pathAddresses and best path
Access to media• Provides reliable transfer of data
across media• Physical addressing, network
topology, error notification, flow control
Fungsi Setiap Layer
7 Application
6 Presentation
5 Session
Transport4
Network3
Data Link2
Physical1
Inter-host communicationInter-host communication
Network services to applicationsNetwork services to applications
Data representationData representation
End-to-end connection End-to-end connection reliabilityreliability
Addresses and best pathAddresses and best path
Access to mediaAccess to media
Binary transmission• Wires, connectors, voltages,
data rates
Pengenalan Wireless Communication
Wireless communication (komunikasi tanpa kabel) digunakan ketika kabel tidak mungkin atau tidak layak dipasang/ditampilkan.
Media yang digunakan antara lain : radio gelombang mikro / microwave bluetooth IrDa, dll
Wireless Media
Radio Sinyal dibawa dalam spektrum
elektomagnetik secara 2 arah (bidirectional) Radio Broadcast : sinyal radio
didistribusikan melalui jarak jauh dan dekat
Radio Cellular : bentuk dari radio broadcast yang digunakan untuk komunikasi bergerak
Radio
Microwave
Microwave station : menggunakan antena pantul bumi
(earth-based reflective dish) harus ditransmisikan secara lurus tanpa
halangan
Microwave
Komunikasi Satelit
Stasiun Luar Angkasa (space station) menerima sinyal gelombang mikro dari antena pantul bumi (earth-based reflective dish), menguatkan sinyal dan membroadcast sinyal kembali ke setiap stasiun bumi (earth-based station)
Komunikasi Satelit