Compiled & Edited by Amira Husain CONTENTS Chapter | Page No. The History of Social Media Introduction 2 The Evolution Of Social Media Timeline Before Dawn The Phone Phreaking Era After The Dawn 3 3 3 9 A Little Insight Precursors to Social Media Major Advances in Social Networking Other Major Social Networks Company-Sponsored Social Networks Media Sharing Social News and Bookmarking Real Time
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Table of Contents EXECUTIVE SUMMARY 4 INTRODUCTION 5 DATA COMMUNICATIONS – THE OSI MODEL 6 MEDIA LAYERS 7 HOST LAYERS 7 DEFENSE IN-DEPTH 8 FIREWALLS 8 NETWORK INTRUSION DETECTION/PREVENTION SYSTEMS (IDPS) 8 Signature Updates 9 User-defined Custom Signatures 10 HOST-BASED INTRUSION DETECTION SYSTEMS 10 ANTIVIRUS 11 SUMMARY 11 REFERENCES 12 Executive Summary Modern distributed data communication systems are comprised of hardware and software that facilitate the creation‚ manipulation
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agree with was the Arpanet project in 1969‚ the project took place in the US and was funded by US tax money. The Arpanet was not an internet‚ it was a connection between two or more computer networks the aim was to try and make the computers understand and encrypt messages through a network‚ this idea was called ‘packet switching’‚ the first message was sent in 1969 from a computer science professor and his team at UCLA to Stanford research institute‚ and this was a part of the Arpanet project. Web 1
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NetHistory (August 2011) http://www.nethistory.info/History%20of%20the%20Internet/protocols.html 2. “History of the Internet” Wikipedia.org (August 2011) http://en.wikipedia.org/wiki/History_of_the_Internet 3. “ARPANET” Wikipedia.org (August 2011) http://en.wikipedia.org/wiki/ARPANET 4. Cerf‚ Vinton. Dalal‚ Yogen. Sunshine‚ Carl. “RFC 675 SPECIFICATION OF INTERNET TRANSMISSION CONTROL PROGRAM” (December 1974) http://tools.ietf.org/html/rfc675 5. “Internet Protocol” Wikipedia.org (August
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teaches at MIT. He’s also head of the World Wide Web Consortium‚ an organization based at the university that sets technical standards for the Web. ■ Before there was the Internet‚ there was the Arpanet‚ which mostly connected universities. And the guy who developed the first e-mail application for the Arpanet‚ enabling a user on one computer to communicate with someone on a distant computer‚ was Ray Tomlinson. Tomlinson chose the “@’’ sign to separate the user’s name from the name of the computer
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Open Souce an Expository Essay Bahiyyudin Ansari Com/150 07/18/2010 Karen Walsh Open Souce an Expository Essay Open source programming brings many benefits to the computer industry by lowering cost‚ allowing the user to gain better accessibility‚ and providing long-term use. Without open source users would not have many advantages of making changes to improve software. Organizations that use open source can excel within their own industries by using tools tailored to fit their business
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"Beam me up‚ Scottie." This popular line from Star Trek was a demonstration of the advanced technology of the future. Though it was a fictional story‚ Star Trek became the universal vision of the future. As always reality tends to mimic fiction. Though our society has not quite resulted to living in space‚ we have made life easier with technology. Economic survival has become more dependent upon information and communications bringing forth new technology of which was never thought possible. Just
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age of information technology owes everything to the development of computer networking. The first operational computer network was created for the United States Department of Defense and was known as ’Advanced Research Projects Agency Network’ (ARPANET). Since then‚ networking technology and architecture evolved in complexity and sophistication‚ to provide us with the internet. As internet is open to all‚ In order to make document sharing within organizations more secure‚ an intranet is created
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computer security? A: Protection of physical locations‚ hardware and software of computers from outside threats. Q: Name three primary threats to security of computers. A: Physical theft‚ espionage and sabotage. Q: Name two fundamental problems with ARPANET security? A: (1) No safety for dial-up connections. (2) Nonexistent user identification and authorization. Q: What was the name of the now obsolete operating system designed for security objectives? A: MULTICS Q: What is the security that addresses
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dividing information into packets and switching them from computer to computer began in the 1960s. The U.S. Department of Defense Advanced Research Projects Agency (ARPA) funded a research project that created a packet switching network known as the ARPANET. ARPA also funded research projects that produced two satellite networks. In the 1970s ARPA was faced with a dilemma: Each of its networks had advantages for some situations‚ but each network was incompatible with the others. ARPA focused research
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