Communications and Network

1. Opjectives Overview

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

1.2. Describe the uses of computer communication

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

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

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

1.6. Describe the various network communications standards

2. Communications

2.1. Sending device

2.2. Communications channel

2.3. Receiving device

3. Uses of Computer Communications

3.1. Blogs

3.2. E-mail

3.3. Fax

3.4. Web

3.5. Internet

3.6. Video conferencing

4. Networks

4.1. Facilitating communications

4.2. Sharing hardware

4.3. Sharing data and information

4.4. Sharing software

4.5. Transferring funds

5. Network Communications Standards

5.1. Ethernet

5.2. Token ring

5.3. New node

5.4. TCP/IP

5.5. Wi-Fi

5.6. New node

5.7. Bluetooth

5.8. UWB

5.9. IrDA

5.10. RFID

5.11. New node

5.12. WiMAX

5.13. WAP

6. Communications Software

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

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

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

7. Communications Over the Telephone Network

7.1. Dial-up lines

7.2. Dedicated line

7.3. ISDN line

7.4. DSL

7.5. FTTP

7.6. T-carrier line

7.7. ATM

8. Communications Devices

8.1. DSL modem

8.1.1. 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

8.2. Cable modem

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

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

9. Home Networks

9.1. Connect to the Internet at the same time

9.2. Share a single high-speed Internet connection

9.3. Access files and programs on other computers

9.4. Share peripherals

9.5. Play multiplayer games

9.6. Connect game consoles to the Internet

9.7. Subscribe to and use VoIP

10. Communications Channel

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

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

10.3. Transmission media carries one or more signals

10.4. Broadband media transmit multiple signals simultaneously

11. Physical Transmission Media

11.1. Twisted-pair cable

11.2. Coaxial cable

11.3. Fiber-optic cable

12. Wireless Transmission Media

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

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

12.3. 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

13. Summary

13.1. Overview of communications terminology and applications

13.2. How to join computers into a network

13.3. Various communications devices, media, and procedures