1.5 Introduction to Internet Summary

The word “Internet “ literally means, “Network of networks”.  Internet is super-network of millions of interconnected  computers and millions of users.

• ARPANET  was started by US Government in 1969, which connected researchers with a remote computer centers, allowing them to share hardware and software
• TCP/IP is the internet protocol, specifies an addressing scheme for computers.  TCP/IP sets the rule for how data should move between computes and programs on the network.
• Modem stands for modulator and demodulator, which convert the digital data into analog signal and vice versa.

ISDN is mainly used in applications like videoconferencing and high speed file transfer.

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