Communications and Networks

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Communications and Networks by Mind Map: Communications and Networks

1. Uses of Computer Communications

1.1. send and receive wireless messages

1.1.1. Text messages

1.1.2. Picture messages

1.1.3. Video messages

1.2. wireless internet access points

1.3. cybercafe

1.4. global positioning system(GPS)

1.4.1. mobile devices

1.4.2. handheld devices

1.4.3. new vehicles

1.5. Collaboration software to share via online

1.5.1. Online meeting

1.5.2. Web conferences

1.5.3. Document Management system

2. Networks

2.1. connected via communications

2.2. Advantages of a network

2.2.1. Facilitating communications

2.2.2. Sharing hardware

2.2.3. Sharing data and information

2.2.4. Sharing software

2.2.5. Tranferring funds

2.3. local area network (LAN)

2.4. wireless LAN (WLAN)

2.5. metropolitan area network (MAN)

2.6. wide area network (WAN)

2.7. network architecture

2.7.1. P2P (access to hard dissk and exchange file over the internet)

2.7.2. network topologe

2.7.2.1. Star network

2.7.2.2. Bus network

2.7.2.3. New node

3. Network Communication Standards

3.1. Ethernet

3.2. token ring

3.3. TCP / IP

3.4. Wifi

3.5. Bluetooth

3.6. UWS (Ultra - wideband)

3.7. TrDA

3.8. RFID

4. Communications Software

4.1. help users connect another computer

4.2. manage tranmission

4.3. provide an interface for users

5. Communication over the telephone network

5.1. ADSL

5.2. public swiched telephone network (PSTN)

6. Communications Devices

6.1. sends and receives data from a digital line

6.1.1. DSL modem

6.1.2. Cable modem

6.2. wireless modem

6.3. network card

6.4. router connect (multiple computer)

6.5. hub (switch connects in a network together)

7. Home Networks

7.1. computer capabililties

7.1.1. Connect to the internet at the same time

7.1.2. Share a single high-speed internet connection

7.1.3. Access file and programs on other computers

7.1.4. Share peripherals

7.1.5. play multiplayer games

7.1.6. connect games console to the internet

7.1.7. subscribe to and use VolP

7.2. type of wired

7.2.1. ethernet

7.2.2. powerlines cable

7.2.3. phoneline

8. Communications channel

8.1. bandwidth

8.2. latency

8.3. transmission media

8.4. broadband

9. Physical transmission Media

9.1. Twisted-pair cables

9.2. Coaxial cables

9.3. Fiber-optic cables

10. Wireless transmission Media

10.1. Cellular radio

10.2. Microwaves

10.3. Communications satellite