Achievements in science and Technology (27)

205、 Famous papers on linear graph theory algorithms have been published
1972 year 6 month , Famous papers on linear graph theory algorithms have been published . In this article “Depth-First Search and Linear Graph Algorithms” In the paper , Robert · Tayan deeply analyzed various properties of depth first search , The efficient algorithms for strongly connected components and double connected components are pointed out , namely Tarjan Algorithm .

206、 The registration restrictions of general top-level domain names have been lifted
2011 year 6 month 20 Japan , The registration restrictions of general top-level domain names have been lifted . The generic top-level domain name is 1985 year 1 Founded in , There were 6 A generic top-level domain name ：.com- For commercial use 、.edu- For educational institutions 、.gov- For the use of the government and its subordinate agencies 、.mil- For military use 、.net- For network service providers 、.org- For organizations that do not fall into the first four categories .

207、“ baby ” The computer ran successfully for the first time
1948 year 6 month 21 Japan ,“ baby ” The computer ran successfully for the first time . Manchester “ baby ”（Manchester Baby） It is the world's first stored program electronic computer that can run . Although no actual computing tasks are performed , But it proves the feasibility of the stored program concept .

208、Quora go online
2010 year 6 month ,Quora go online .Quora Is an Online Knowledge Q & a website , The creation target is “ Mining wiki knowledge that is not available on the web , And give it a strong social media attribute ”. Founder Adam · Angelo was acutely aware of , A lot of information is always in people's minds , But did not enter the Internet world —— Even if the Internet is everywhere .

209、Alan Turing
Alan Turing（1912-06-23—1954-06-07）1912 year 6 month 23 Japan , Alan · Turing's birth . Turing is an English mathematician 、 logician , Known as “ Father of Computer Science ”“ The father of artificial intelligence ”, This stems from his proposal “ Turing machine ”“ Turing test ” And other important concepts , Is the founder of computer logic .

210、 Big O Symbol birth
1892 year , Big O Symbol birth . Big O Symbols are used mathematically to describe the asymptotic behavior of functions , In the computer field, it is used to analyze the complexity of algorithms . Big O The symbol was written by German mathematician Bachmann 《 Analytic number theory 》（Analytische Zahlentheorie） First introduce , It has been popularized and used by Landau and others , It is also known as “ Landau symbol ”.

211、 Microsoft released ASP.NET Core 1.0
2016 year 6 month 27 Japan , Microsoft released ASP.NET Core 1.0..NET Core It is the first completely open source cross platform application development framework developed by Microsoft , Can run in Windows、Linux and macOS Wait for multiple platforms . In limine ,.NET Core Some functions of are inferior to .NET Enrich , But its open source and cross platform features have won a large number of users .

212、Google The earth is online
2005 year 6 month 28 Japan ,Google The earth is online .Google Earth is a virtual globe software developed by Google , The technical prototype is John · Hank worked Intrinsic Graphics Developed three-dimensional earth model . Then hank came out and founded Keyhole, Developed Keyhole EarthViewer Software , Satellite images and aerial photos can be superimposed on the earth model .
 

Record the achievements and achievements of our predecessors , Inspire us to move forward ！