As we all know, in a telephone communications, telephone users are identified by telephone numbers. Similarly, in the network in order to distinguish different computer, the computer also needs to specify a number, this number is the "IP address." The so-called IP address is connected to each host in the Internet distribution on a 32bit address. In accordance with the TCP / IP agreement, IP address expressed in binary, each IP address length of 32bit, bit converted into bytes is 4 bytes. For example, a binary form of IP address is "00001010000000000000000000000001", such a long address, people deal with it too strenuous. In order to facilitate the use of people, IP addresses are often written in decimal form, in the middle use the symbol "." Separate the different bytes. Thus, the above IP address can be expressed as "10.0.0.1". IP address of this representation is called "dotted decimal notation," This is obviously easier to remember than the 1 and 0 much. Some people may think that a computer can only have one IP address, this view is wrong. We can specify a single computer with multiple IP addresses, so access to the Internet, do not think that an IP address is a computer; In addition, through a particular technology, but also allows multiple servers to share a single IP address, the server user looks like a host-like.
Letter also noted that Microsoft in February 2007 the tender offer has been rejected. At that time, Microsoft and Yahoo are willing to cooperate in other ways, only consider the full acquisition of Yahoo. Microsoft said in the letter, although in the past business cooperation was significant, but Microsoft believes the cooperation is the only way to Microsoft - Yahoo merger. Ballmer said in a telephone conference, the first time in more than a year before the contact with Yahoo, Microsoft believes the merger on both sides. He said that we believe are more favorable to both sides of the merger. Yahoo on Tuesday announced disappointing karma. Yahoo CEO Jerry Yang said on Tuesday, Yahoo is now in the face of adversity. He also announced plans to cut 1,000 jobs. Search Engine Land editor Danny said Microsofts move confirms the value of Yahoo, may cause other buyers "coming." However, in terms of how to integrate Yahoo, Microsoft did not have enough plans. Microsoft acquired Tellme Aquantive and different, Microsoft and its Live brand and there is overlap Yahoo services, including e-mail, portals, advertising, search.