what is TC

關於氣象既TC名稱，相信你係講緊Tropical Cyclones
Tropical Cyclones即係熱帶氣旋,千奇唔好聽上面果位亂up!!
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熱帶氣旋之分類
依照世界氣象組織之建議，熱帶氣旋是根據接近風暴中心之最高持續風力加以分類的。香港採用的分類定義以10分鐘平均風速為根據，分為以下四種：

熱帶氣旋類別:
熱帶低氣壓 每小時62公里或以下
熱帶風暴 每小時63至87公里
強烈熱帶風暴 每小時88至117公里
颱風 每小時118公里或以上
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更多資料可到HKO睇: http://www.hko.gov.hk/informtc/tcInfoc.htm (參考資料有)

TC = IP Address

therefore what is an ip address?

Errrr.....An IP address (Internet Protocol address) is a unique address that certain electronic devices use in order to identify and communicate with each other on a computer network utilizing the Internet Protocol standard (IP)—in simpler terms, a computer address. Any participating network device—including routers, computers, time-servers, printers, Internet fax machines, and some telephones—can have their own unique address. Also, many people can find personal information through IP addresses.

An IP address can also be thought of as the equivalent of a street address or a phone number (compare: VoIP (voice over (the) internet protocol)) for a computer or other network device on the Internet. Just as each street address and phone number uniquely identifies a building or telephone, an IP address can uniquely identify a specific computer or other network device on a network.

An IP address can appear to be shared by multiple client devices either because they are part of a shared hosting web server environment or because a proxy server (e.g., an ISP or anonymizer service) acts as an intermediary agent on behalf of its customers, in which case the real originating IP addresses might be hidden from the server receiving a request. The analogy to telephone systems would be the use of predial numbers (proxy) and extensions (shared).

IP addresses are managed and created by the Internet Assigned Numbers Authority. IANA generally allocates super-blocks to Regional Internet Registries, who in turn allocate smaller blocks to Internet service providers and enterprises.