This document discusses different types of computer networks including LAN, MAN, and WAN. It describes LAN networks as covering a small geographic area like a home, school, or office building. MAN networks are larger than LANs and span an entire city, and WANs are the largest, spanning cities, regions, and countries. The document also outlines peer-to-peer and client-server network models and common LAN technologies like Ethernet, Fast Ethernet, Gigabit Ethernet, and wireless LANs.

1. 1
Computer Network)
2
3
LAN (Local Area Network),MAN (Metropolitan Area
Network),WAN(Wide Area Network)
1. LAN (Local Area Network)
10
2. MAN (Metropolitan Area Network)
3. WAN (Wide Area Network)
World wide

2. dial up/
Leased Line/ ISDN)
o
o
o
o
o
o
2
Peer to Peer Client
Server
1. Peer to Peer Network
Peer)
Client Server
Peer to Peer

3. Workgroup)
Windows 98/Me XP
2. Client-Server
15-20
peer to peer
client-server
server
client
workstation
server
server
client
server
2
Ethernet/ Fast Ethernet/ Gigabit Ethernet
Wireless LAN
Ethernet / Fast Ethernet / Gigabit Ethernet LAN

4. LAN
10 Gbps UTP
Fiber optic
Wireless LAN
Wireless
o IEEE 802.11 2.4～2.5GHz 2Mbps
o IEEE 802.11b 2.4～2.5GHz
11Mbps / 22Mbps
o IEEE 802.11a 5.15～5.35GHz, 5.47～5.725GHz
54Mbps
o IEEE 802.11g 2.4～2.5GHz
54Mbps
o IEEE 802.11n 2.4GHz / 5GHz
300Mbps
Ad-Hoc)
Access Point
Access Point)
Access Point