Communications and Network

1. Communications

1.1. Sending device

1.2. Communications channel

1.3. Receiving device

2. Communications Software

2.1. Help users establish a connection to another computer or network

2.2. Manage the transmission of data, instructions, and information

2.3. Provide an interface for users to communicate with one another

3. Communications Over the Telephone Network

3.1. Dial-up lines

3.2. Dedicated line

3.3. ISDN line

3.4. DSL

3.5. FTTP

3.6. T-carrier line

3.7. ATM

4. Communications Devices

4.1. DSL modem

4.1.1. A wireless modem uses the cell phone network to connect to the Internet wirelessly from a notebook computer, a smart phone, or other mobile device

4.2. Cable modem

4.2.1. A router connects multiple computers or other routers together and transmits data to its correct destination on a network

4.2.2. A hub or switch connects several devices in a network together

5. Home Networks

5.1. Connect to the Internet at the same time

5.2. Share a single high-speed Internet connection

5.3. Access files and programs on other computers

5.4. Share peripherals

5.5. Play multiplayer games

5.6. Connect game consoles to the Internet

5.7. Subscribe to and use VoIP

6. Wireless Transmission Media

6.1. Cellular radio is a form of broadcast radio that is used widely for mobile communications

6.2. Microwaves are radio waves that provide a high-speed signal transmission

6.3. A communications satellite is a space station that receives microwave signals from an earth-based station, amplifies it, and broadcasts the signal over a wide area

7. Summary

7.1. Overview of communications terminology and applications

7.2. How to join computers into a network

7.3. Various communications devices, media, and procedures

8. Opjectives Overview

8.1. Discuss the purpose of the components required for successful communications and identify various sending and receiving devices

8.2. Describe the uses of computer communication

8.3. List advantages of using a network, and differentiate among LANs, MANs, and WANs

8.4. Differentiate between client/server and peer-to-peer networks, and describe how a P2P network works

8.5. Differentiate among a star network, bus network, and ring network

8.6. Describe the various network communications standards

9. Uses of Computer Communications

9.1. Blogs

9.2. E-mail

9.3. Fax

9.4. Web

9.5. Internet

9.6. Video conferencing

10. Networks

10.1. Facilitating communications

10.2. Sharing hardware

10.3. Sharing data and information

10.4. Sharing software

10.5. Transferring funds

11. Network Communications Standards

11.1. Ethernet

11.2. Token ring

11.3. New node

11.4. TCP/IP

11.5. Wi-Fi

11.6. New node

11.7. Bluetooth

11.8. UWB

11.9. IrDA

11.10. RFID

11.11. New node

11.12. WiMAX

11.13. WAP

12. Communications Channel

12.1. The amount of data that can travel over a communications channel sometimes is called the bandwidth

12.2. Latency is the time it takes a signal to travel from one location to another on a network

12.3. Transmission media carries one or more signals

12.4. Broadband media transmit multiple signals simultaneously

13. Physical Transmission Media

13.1. Twisted-pair cable

13.2. Coaxial cable

13.3. Fiber-optic cable