What is the old nest of 20 IT technology companies? Have you ever seen it!

For intel, AMD, Microsoft, Google, Twitter, Facebook ...... It's estimated that everyone is familiar with these well-known IT companies. Because every day we cannot do without the quality services and products provided by these IT technology companies (of course, due to the relationship between the Greater China LAN, we are not directly using some It Internet products ). So what are the headquarters of these big-name it technology Internet companies? It is estimated that few people know that, even if they are stunned, you do not believe that this is the headquarters of a large global IT company. For example, you may not think that the headquarters building of Amazon, the world's largest e-commerce website, is actually in a medical center? So today, let's look at what the "old nest" of these IT technology Internet giants looks like in alphabetical order.