In the final chapter of the book, Hafner and Lyon talked about the military and army and their use with computers and networks. In the early 1970s, most military satellites were in orbit (Hafner and Lyon 221). While sitting at a conference Cerf and Kahn had drawn up an idea for the internet design. They came up with the idea how to connect from ARPANET to Satnet and a Prnet. Ethernet was also discussed in this chapter. Ethernet allowed for one to be sitting at lets say a desktop computer and send information to a printer connected to the desktop, to print off a document. This chapter also discusses things such as CDNETT and BITNET. Its fascinating to read about all the different communication systems they were able to come up with. In 1989, the internet was officially working for everyone. It is fascinating to think that the internet is really not that old at all.
Finally something I have always wanted to learn more about, the invention of E-mail. Not that I don’t find the internet interesting, I do. I just find email fascinating and the things we are now able to do with it. Between the years 1972-1980, email was referred to as network mail by the thousands of users that had access to it.The first email was sent in 1972 at BBN. Email was actually an art and lucky accident that happened (Hafner and Lyon 189). One problem that occurred with emailing was headers. Header sometimes would appear to the receiver of an email with everything misconstrued in the message. Email at first was almost like asking someone on a date at first because you had to ask someone if you could send them a message. In 1975, Steve Walker came up with the idea Message Service Group, MsgGroup. MsgGroup was a tool used so multiple people could message each other through a mailing list. The idea of free speech also came about with the email. People were allowed to speak and say whatever they wanted too, but it was in writing. People quickly became comfortable with this notion.
As lame as this is about to sound, I was really excited this chapter started with pictures. Hafner and Lyon have dropped so many names in this book. It was nice to finally put names to faces so readers kind of knew who they were talking about. Back to the actual content, loop test became important because it provided a way to isolate the source of many troubles with the IMP (Hafner and Lyon 162). This chapter goes on about the different issues they were still having and which team member was trying to fix them. Robert’s threatened to cancel BBN’s contract with Honeywell due to constant failures and the lack of cooperation from their engineers. It seems they worked out their differences and issues. Heart’s team and Roberts discussed the possibility of connecting many new users to the net without going through a host computer (Hafner and Lyon 171). This is where the idea for the internet began. In the fall of 1971, BBN finally got a prototype up and successfully running after years of failures. I found the information on page 182-183 about the program called the Doctor. The program, from what I understood, allowed one to mimic a conversation one would have with a Doctor. What an interesting fact to find out about how people were first able to interact virtually.
This chapter begins talking about Steve Crocker and Vint Cerf and how they grew up as best friends. They drifted in and out of each other’s lives, but then in the summer of 1968 the two were reunited at UCLA working for Estrin and the super computer project. The next part of this chapter talked about the search for protocols. I thought the part that talked about RFC-1 also known as Request for Comments. Reid talked about how it made him feel like he could “play in this club too” (Hafner and Lyon 144). Kind of reminds me of a present day Facebook group message. Back to the chapter, the most difficult part everyone faced that was involved was designing the host-to-host protocol. By the end of 1969, a host-to-host protocol still hadn’t been successfully created. Although in the end, the first ARPA network map was designed, which was a huge success.