How to get to chegongmiao disease control center
Publish: 2021-05-08 20:43:31
1. District Center for Disease Control and Prevention (office hours: 9:00-12:00 a.m., 2:00-6:00 p.m.)
address: Futian District Health Supervision and disease control building (No. 8043, Hongli Road) at the junction of Hongli West Road and Xiangmihu road
Tel: 82034071, 82034072
address: Futian District Health Supervision and disease control building (No. 8043, Hongli Road) at the junction of Hongli West Road and Xiangmihu road
Tel: 82034071, 82034072
2. Baoan center for Disease Control and prevention Tel: 27786303
address: 116 Longjing Road, Baocheng
address: 116 Longjing Road, Baocheng
3. Unknown_Error
4. The scientific name of computer is computer, which was developed from the early electric calculator. In 1945, the first electronic digital computer "enjac" appeared in the world to calculate the trajectory. It is made by Moore Institute of electrical engineering, University of Pennsylvania, USA, but it has a huge volume, covers an area of more than 500 square meters, weighs about 30 tons, and consumes nearly 100 kilowatts of electricity. Obviously, this kind of computer costs a lot and is inconvenient to use. In 1956, the transistor computer was born, which is the second generation of electronic computer. Only a few larger cabinets can hold it, and the computing speed is greatly improved. In 1959, the third generation of integrated circuit computers appeared
since the 1970s, this is the latest stage of computer development. By 1976, the "clay one" made of LSI and VLSI had brought computers into the fourth generation. With the invention of VLSI, the electronic computer is constantly updated in the direction of miniaturization, miniaturization, low power consumption, intelligence and systematization
in the 1990s, computers developed in the direction of "intelligence" and proced computers similar to human brain, which can carry out thinking, learning, memory, network communication and other work
in the 21st century, computers are more notebook, miniaturized and specialized, with a computing speed of more than 1 million times per second. They are not only easy to operate and cheap, but also can replace part of people's mental work, and even expand people's intelligence in some aspects. As a result, today's microcomputers are vividly called computers< The first personal computer in the world was launched by IBM in 1981<
the Internet began in 1969. Under the agreement of ARPA, it connects the four main computers of universities in the southwest of the United States (UCLA, Stanford Research Institute, UCSB and University of Utah). The agreement, implemented by BBN and Ma of Cambridge University, came online in December 1969. By June 1970, MIT (Massachusetts Institute of Technology), Harvard (Harvard University), BBN (California Santa Monica systems development company) had joined in. By January 1972, Stanford, MIT's Lincoln Labs, Carnegie Mellon and Case Western Reserve U () had joined in. In the months that followed, NASA / Ames, mitre (), Burroughs (), Rand and the University of Illinois joined in. Since then, more and more companies have joined in, which cannot be listed here< In 1968, when Senator Ted Kennedy heard that BBN had won the ARPA agreement as the internal message processor (IMP), he sent a congratulatory message to BBN to congratulate them on their spirit in winning the agreement
the Internet was originally designed to provide a communication network that could work even if some sites were destroyed by nuclear weapons. If most of the direct channels are blocked, the router will guide the communication information to spread in the network through the intermediate router
the original network was for computer experts, engineers and scientists. It was not friendly at all. At that time, there were no home and office computers, and anyone who used them, whether they were computer experts, engineers or scientists, had to learn very complex systems. Ethernet, the protocol of most local area networks, appeared in 1974. It is a by-proct of Harvard student Bob Metcalfe's paper on "packet radio network". This paper was initially rejected by the school because of insufficient analysis. Later, he added some factors and was accepted
e to the development of TCP / IP architecture, the Internet developed rapidly in the 1970s. This architecture was first proposed by Bob Kahn in BBN, and then further developed and improved by Kahn and VINT Cerf of Stanford University and others in the 1970s and 1980s. In the 1980s, the Defense Department adopted this architecture. By 1983, the whole world had adopted this architecture< In 1978, uucp (UNIX and UNIX protocol) was proposed in Bell Labs. In 1979, newsgroup network system developed on the basis of uucp. Newsgroups (discussion groups focusing on a particular topic) have been developed, providing a new way to exchange information around the world. However, newsgroup is not considered as a part of the Internet, because it does not share TCP / IP protocol, it connects UNIX systems all over the world, and many Internet sites make full use of newsgroup. Newsgroups are a very important part of the development of the Internet world
similarly, bitnet (a computer network connecting world ecation units) is connected to IBM's mainframe of the world ecation organization. At the same time, it began to provide mail service in 1981. Listserv software and later other software were developed to serve the network. The gateway has been developed for the connection between bitnet and Internet, as well as providing e-mail delivery and e-mail discussion list. These listservs and other email discussion lists form another important part of the development of the Internet
when the commands of e-mail, FTP and telnet are standardized, it is very easy for non engineering technicians to learn and use the network. In any case, it is not as easy as today, but it has greatly promoted the application of the Internet in universities and special fields. Other departments, including computer, physics and engineering, have also found ways to take advantage of the benefits of the Internet by communicating and sharing files and resources with universities around the world. Libraries, too, have taken a step forward to make their search catalogue available to the whole world< *** This software can periodically go to all open file download sites, list their files and build a retrievable software index. Retrieving Archie command is a UNIX command, so only by using UNIX knowledge can we make full use of its performance
mcfill University, the university with the first Archie, found that half of the daily traffic from the United States to Canada visits Archie. The school is concerned about whether the management program can support such a large amount of traffic, so it has to close the external access. Fortunately, there were a lot of Archies available at that time
at about the same time, Brewster Kahle () invented WAIS (wide area network information service) in thinking machines, which can retrieve all files in a database and allow file retrieval. There are many versions depending on the complexity and performance, but the simplest one can be used by anyone on the Internet. At its peak, intelligent computer maintained clues to more than 600 databases worldwide that could be retrieved by WAIS. It includes all the frequently asked questions in newsgroups and all the papers under development for web standards. Like Archie, its interface is not very intuitive, so it takes a lot of effort to make good use of it< In 1991, the first friendly interface to connect to the Internet was developed at the University of Minnesota. At that time, the school just wanted to develop a simple menu system, which could access the files and information on the campus network through the LAN. Following the debate between the believers of mainframe and those who support client server architecture. At first, the followers of mainframe systems had the upper hand, but since the advocates of client server architecture claimed that they could build a prototype system quickly, they had to admit failure. Proponents of client server architecture quickly built an advanced demonstration system called gopher. This gopher proved to be very useful. In the next few years, there were more than 10000 gophers around the world. It does not require knowledge of UNIX and computer architecture. In a gopher, you just need to type in a number and select the menu option you want. Today you can use the uofminnesotagopher() to select all gopher systems around the world
when Reno of the University of Nevada created Veronica (an automatic retrieval service used by gopher), gopher's usability was greatly enhanced. It's called veryeasyrodent - for short. Gopher around the world collects network connections and indexes like a web. It's so popular that it's hard to connect them, but nevertheless, in order to rece the load, a lot of Veronica has been developed. Similar single user indexing software has also been developed, which is called Jughead (jonay ').
Peter Deutsch, the inventor of Archie, has always insisted that Archie is the abbreviation of archier. When Veronica and Jughead appear, they show great disgust< *** Tim Berners and others at CERN - well known at CERN - have come up with a protocol for classifying Internet information. This protocol, known as worldwide web after 1991, is based on hypertext protocol, which is a system that embeds another piece of text in one text. When you read these pages, you can use them to select a piece of text connection at any time. Although it appeared before gopher, its development is very slow
the emergence of graphic browser mosaic has greatly promoted the development of this protocol, which was developed by Marc andressen and his team at NCSA (International supercomputer Application Center). Today, andressen is the leader of Netscape company. Netscape company has developed the most successful graphics browser and server so far, which Microsoft has always been difficult to surpass
since the Internet was initially invested and constructed by government departments, it was initially limited to research departments, schools and government departments. Except for the commercial application directly serving the research department and school, other commercial activities are not allowed. In the early 1990s, when the independent business network began to develop, this situation was broken. This makes it possible to send information from one business site to another without going through a government funded network hub
dephi is the first international business company to provide online services for their customers. The e-mail service began in July 1992, and a comprehensive network service was launched in November 1992. In May 1995, when NFS (International Science Foundation) lost its position as the internet hub, all the rumors about the limitations of commercial sites disappeared, and all the rumors were lost
since the 1970s, this is the latest stage of computer development. By 1976, the "clay one" made of LSI and VLSI had brought computers into the fourth generation. With the invention of VLSI, the electronic computer is constantly updated in the direction of miniaturization, miniaturization, low power consumption, intelligence and systematization
in the 1990s, computers developed in the direction of "intelligence" and proced computers similar to human brain, which can carry out thinking, learning, memory, network communication and other work
in the 21st century, computers are more notebook, miniaturized and specialized, with a computing speed of more than 1 million times per second. They are not only easy to operate and cheap, but also can replace part of people's mental work, and even expand people's intelligence in some aspects. As a result, today's microcomputers are vividly called computers< The first personal computer in the world was launched by IBM in 1981<
the Internet began in 1969. Under the agreement of ARPA, it connects the four main computers of universities in the southwest of the United States (UCLA, Stanford Research Institute, UCSB and University of Utah). The agreement, implemented by BBN and Ma of Cambridge University, came online in December 1969. By June 1970, MIT (Massachusetts Institute of Technology), Harvard (Harvard University), BBN (California Santa Monica systems development company) had joined in. By January 1972, Stanford, MIT's Lincoln Labs, Carnegie Mellon and Case Western Reserve U () had joined in. In the months that followed, NASA / Ames, mitre (), Burroughs (), Rand and the University of Illinois joined in. Since then, more and more companies have joined in, which cannot be listed here< In 1968, when Senator Ted Kennedy heard that BBN had won the ARPA agreement as the internal message processor (IMP), he sent a congratulatory message to BBN to congratulate them on their spirit in winning the agreement
the Internet was originally designed to provide a communication network that could work even if some sites were destroyed by nuclear weapons. If most of the direct channels are blocked, the router will guide the communication information to spread in the network through the intermediate router
the original network was for computer experts, engineers and scientists. It was not friendly at all. At that time, there were no home and office computers, and anyone who used them, whether they were computer experts, engineers or scientists, had to learn very complex systems. Ethernet, the protocol of most local area networks, appeared in 1974. It is a by-proct of Harvard student Bob Metcalfe's paper on "packet radio network". This paper was initially rejected by the school because of insufficient analysis. Later, he added some factors and was accepted
e to the development of TCP / IP architecture, the Internet developed rapidly in the 1970s. This architecture was first proposed by Bob Kahn in BBN, and then further developed and improved by Kahn and VINT Cerf of Stanford University and others in the 1970s and 1980s. In the 1980s, the Defense Department adopted this architecture. By 1983, the whole world had adopted this architecture< In 1978, uucp (UNIX and UNIX protocol) was proposed in Bell Labs. In 1979, newsgroup network system developed on the basis of uucp. Newsgroups (discussion groups focusing on a particular topic) have been developed, providing a new way to exchange information around the world. However, newsgroup is not considered as a part of the Internet, because it does not share TCP / IP protocol, it connects UNIX systems all over the world, and many Internet sites make full use of newsgroup. Newsgroups are a very important part of the development of the Internet world
similarly, bitnet (a computer network connecting world ecation units) is connected to IBM's mainframe of the world ecation organization. At the same time, it began to provide mail service in 1981. Listserv software and later other software were developed to serve the network. The gateway has been developed for the connection between bitnet and Internet, as well as providing e-mail delivery and e-mail discussion list. These listservs and other email discussion lists form another important part of the development of the Internet
when the commands of e-mail, FTP and telnet are standardized, it is very easy for non engineering technicians to learn and use the network. In any case, it is not as easy as today, but it has greatly promoted the application of the Internet in universities and special fields. Other departments, including computer, physics and engineering, have also found ways to take advantage of the benefits of the Internet by communicating and sharing files and resources with universities around the world. Libraries, too, have taken a step forward to make their search catalogue available to the whole world< *** This software can periodically go to all open file download sites, list their files and build a retrievable software index. Retrieving Archie command is a UNIX command, so only by using UNIX knowledge can we make full use of its performance
mcfill University, the university with the first Archie, found that half of the daily traffic from the United States to Canada visits Archie. The school is concerned about whether the management program can support such a large amount of traffic, so it has to close the external access. Fortunately, there were a lot of Archies available at that time
at about the same time, Brewster Kahle () invented WAIS (wide area network information service) in thinking machines, which can retrieve all files in a database and allow file retrieval. There are many versions depending on the complexity and performance, but the simplest one can be used by anyone on the Internet. At its peak, intelligent computer maintained clues to more than 600 databases worldwide that could be retrieved by WAIS. It includes all the frequently asked questions in newsgroups and all the papers under development for web standards. Like Archie, its interface is not very intuitive, so it takes a lot of effort to make good use of it< In 1991, the first friendly interface to connect to the Internet was developed at the University of Minnesota. At that time, the school just wanted to develop a simple menu system, which could access the files and information on the campus network through the LAN. Following the debate between the believers of mainframe and those who support client server architecture. At first, the followers of mainframe systems had the upper hand, but since the advocates of client server architecture claimed that they could build a prototype system quickly, they had to admit failure. Proponents of client server architecture quickly built an advanced demonstration system called gopher. This gopher proved to be very useful. In the next few years, there were more than 10000 gophers around the world. It does not require knowledge of UNIX and computer architecture. In a gopher, you just need to type in a number and select the menu option you want. Today you can use the uofminnesotagopher() to select all gopher systems around the world
when Reno of the University of Nevada created Veronica (an automatic retrieval service used by gopher), gopher's usability was greatly enhanced. It's called veryeasyrodent - for short. Gopher around the world collects network connections and indexes like a web. It's so popular that it's hard to connect them, but nevertheless, in order to rece the load, a lot of Veronica has been developed. Similar single user indexing software has also been developed, which is called Jughead (jonay ').
Peter Deutsch, the inventor of Archie, has always insisted that Archie is the abbreviation of archier. When Veronica and Jughead appear, they show great disgust< *** Tim Berners and others at CERN - well known at CERN - have come up with a protocol for classifying Internet information. This protocol, known as worldwide web after 1991, is based on hypertext protocol, which is a system that embeds another piece of text in one text. When you read these pages, you can use them to select a piece of text connection at any time. Although it appeared before gopher, its development is very slow
the emergence of graphic browser mosaic has greatly promoted the development of this protocol, which was developed by Marc andressen and his team at NCSA (International supercomputer Application Center). Today, andressen is the leader of Netscape company. Netscape company has developed the most successful graphics browser and server so far, which Microsoft has always been difficult to surpass
since the Internet was initially invested and constructed by government departments, it was initially limited to research departments, schools and government departments. Except for the commercial application directly serving the research department and school, other commercial activities are not allowed. In the early 1990s, when the independent business network began to develop, this situation was broken. This makes it possible to send information from one business site to another without going through a government funded network hub
dephi is the first international business company to provide online services for their customers. The e-mail service began in July 1992, and a comprehensive network service was launched in November 1992. In May 1995, when NFS (International Science Foundation) lost its position as the internet hub, all the rumors about the limitations of commercial sites disappeared, and all the rumors were lost
5. BBN means by by, you might as well check whether your netizen is offline after saying this sentence!
6. vbbgb
7. Unknown_Error
8. BBN technical terms: broad band noise
network terms: bye bye now
network terms: bye bye now
9. Unknown_Error
Hot content