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مقدمة عن الاتصالات الرقمية. شبكات الاتصال. مقدمة. 1.1 أستخدام شبكات الحاسوب أهمية الشبكات بالنسبة للشركات فائدة الشبكات للناس النتائج الاجتماعية. مقدمة. 2.1 العتاد الصلب للشبكات تقنيات النقل:- شبكات البث العام Broadcast network شبكات نقطة الى نقطة point to point network - PowerPoint PPT Presentation
1.1
2.1 :- Broadcast network point to point network :- ( )
( )
Wide Area Network
: 1-2 Mbps
( ) Inter Networks Gateways subnets Internet
3.1 Layers & LevelsPeers ()
3.1
3.1
3.1 Design Issues for the Layers Simplex communicationHalf-duplex communicationFull-duplex communication
3.1 Interface and Services
3.1
4.1 1.4.1 OCI OCI
Reference ModelsThe OSI reference model.
4.1 1.4.1 OCI
4.1 2.4.1 TCP/IP -
4.1 2.4.1 TCP/IP
Reference Models (2)The TCP/IP reference model.
4.1 2.4.1 TCP/IP
Reference Models (3)Protocols and networks in the TCP/IP model initially.
Bad TimingThe apocalypse of the two elephants.
Hybrid ModelThe hybrid reference model to be used in this book.
Architecture of the InternetOverview of the Internet.
ATM Virtual CircuitsA virtual circuit.
ATM Virtual Circuits (2)An ATM cell.
The ATM Reference ModelThe ATM reference model.
The ATM Reference Model (2)The ATM layers and sublayers and their functions.
EthernetArchitecture of the original Ethernet.
Wireless LANs(a) Wireless networking with a base station.(b) Ad hoc networking.
Wireless LANs (2)The range of a single radio may not cover the entire system.
Wireless LANs (3)A multicell 802.11 network.
IEEE 802 StandardsThe 802 working groups. The important ones are marked with *. The ones marked with are hibernating. The one marked with gave up.
Metric UnitsThe principal metric prefixes.
4.1 3.4.1 OSI TCP
4.1 4.4.1 OSI
4.1 5.4.1 TCP/IP
5.1 Novell Network APPANETNSFNET Internet
6.1 SMDS X.25 ISDN ATM
7.1