網路原理(一) Section 4.1

Access Point (AP)
To offer wireless capability, devices on a wireless network must be connected to a wireless access point (AP).

American National Standards Institute (ANSI)  
美國國家標準協會是負責制定美國國家標準的非營利組織。

Bandwidth
頻寬
Bandwidth is the capacity of a medium to carry data.

CENELEC (European Committee for Electrotechnical Standardization)
CSA (Canadian Standards Association)
there are often regional cabling standards groups  

Copper cable
The signals are patterns of electrical pulses.

European Telecommunications Standards Institute (ETSI) 
Federal Communication Commission (FCC)
JSA/JIS (Japanese Standards Association)
National telecommunications regulatory authorities 

Encoding
編碼

Fiber-optic cable
The signals are patterns of light. 

Gigabits per second (Gb/s)
Kilobits per second (kb/s)
Megabits per second (Mb/s)
每秒多少單位

Goodput
Goodput is throughput minus traffic overhead for establishing sessions, acknowledgments, and encapsulation. 

Institute of Electrical and Electronics Engineers (IEEE)
電機電子工程師學會是一個建立於1963年1月1日的國際性電子技術與電子工程師協會，亦是世界上最大的專業技術組織之一，擁有來自175個國家的36萬會員。

Integrated Service Router (ISR)
Provide fewer points of management for the branch.

International Organization for Standardization (ISO)
國際標準化組織成立於1947年2月23日，制定全世界工商業國際標準的國際標準建立機構。 

International Telecommunication Union (ITU)
國際電信聯盟是一個國際組織，主要負責確立國際無線電和電信的管理制度和標準。

Internet Engineering Task Force (IETF)
網際網路工程任務小組負責網際網路標準的開發和推動。 它的組織形式主要是大量負責特定議題的工作群組，每個都有一個指定主席。

Latency
Latency refers to the amount of time, to include delays, for data to travel from one given point to another.
 
Manchester encoding
Manchester encoding represents a 0 bit by a high to low voltage transition, and a 1 bit is represented as a low to high voltage transition. 

Modulation
Modulation is the process by which the characteristic of one wave (the signal) modifies another wave (the carrier).

Network Interface Cards (NICs)
網路介面卡

OSI Physical Layer
OSI物理層

Signaling
訊號

Telecommunications Industry Association/Electronic Industries Association (TIA/EIA)
International and national organizations, regulatory government organizations, and private companies involved in establishing and maintaining physical layer standards.  
 
Throughput
Throughput is the measure of the transfer of bits across the media over a given period of time.

Wireless
The signals are patterns of microwave transmissions.

Wireless Local Network (WLAN)
無線區域網路（英語：Wireless LAN，縮寫WLAN）是不使用任何導線或傳輸電纜連接的區域網路，而使用無線電波作為資料傳送的媒介，傳送距離一般只有幾十米。 無線區域網路的主幹網路通常使用有線電纜，無線區域網路用戶通過一個或多個無線接取器接入無線區域網路。