Business networking

1. Business Networks and
Telecommunications
Jirasak Hengsrisombat

2. Telecommunications
• Better business communication.
• Greater efficiency.
• Better distribution of data.
• Instant transactions.
• Flexible and mobile workforce.
• Alternative channels.

3. TELECOMMUNICATIONS IN DAILY
USE
• Cellular Phones
• Videoconferencing
• Wireless Payments and Warehousing (ในที่นี้หมายถึง
RFID)
• Peer-to-Peer File Sharing
• Web-Empowered Commerce

4. BANDWIDTH AND MEDIA
• Bandwidth or bits per second (bps).
Transmission speed measurement units
Bps Bits per second
Kbps Thousand bps
Mbps Million bps (mega bps)
Gbps Billion bps (giga bps)
Tbps Trillion bps (tera bps)
Baseband vs Broadband
Baseband คือ สื่อ (Media) สามารถสื่อสารข้อมูลบางอย่างได้เพียงอย่างเดียว
Broadband คือ การสื่อสารข้อมูลมากกว่า 1 ข้อมูลเกิดขึ้นบนสื่อเพียงสื่อเดียว

5. BANDWIDTH AND MEDIA
• Network Media
Medium Availability Bandwidth Vulnerability to
Electromagnetic
Interference
Twisted pair cable High Low to medium High
Radio waves High Medium to high Low
Microwave Low High Low
Coaxial (TV) cable High High Low
Optical fiber Moderate but
growing
Highest Nonexistent
Electric Power
lines (BPL)
Very High High High

6. รายง
าน
โครงข่าย
ใยแก้ว ปี
59

7. Twisted Pair Cable
Twisted Paired
RJ11 (Telephone)
RJ45 (LAN)

8. Optical Fiber
Fiber Optic cable
Fiber Optic Cable

9. Radio and Satellite Transmission
Internet Satellite

10. Broadband over Power Lines (BPL)
BPL Plug

11. Types of Networks
• Local Area Network or LAN.
• Metropolitan Area Network or MAN.
• Wide Area Network or WAN.
• Personal Area Network or PAN

12. Networking Hardware
• Network Interface Card (NIC)

13. Networking Hardware
• Hub
• Switch
• Router
• Bridge
• Repeater
• modem

14. Virtual Private Networks (VPN)

15. PROTOCOLS
protocol is a set of rules that
govern communication between
computers or between computers
and other computer-related devices
that exchange data.

16. PROTOCOLS
• TCP/IP (Transmission Control Protocol/Internet
Protocol)
• IP address
• Static IP Address
• Dynamic IP Address
• Public IP Address
• Private IP Address
• DNS (Domain Name System)
• Ethernet

17. PROTOCOLS
• Wireless Protocols
• IEEE 802.11 Wi-Fi
• IEEE 802.15 Bluetooth
• IEEE 802.16 WiMAX
• IEEE 802.20 MBWA

18. Wi-Fi , Wi-Max , Ethernet , Internet

19. Wireless networking protocols

20. INTERNET NETWORKING SERVICES
• Cable
• Digital Subscriber Line (DSL)
• T1 and T3 Lines
• Satellite
• Fixed Wireless
• Fiber to the Premises
• Fiber to the Home (FTTH).

21. THE FUTURE OF NETWORKING
TECHNOLOGIES
• Broadband Telephony
• VoIP (Voice over Internet Protocol).

22. Converging Technologies