History of e-mail, Basic Computer Science

History of E-mail:

Internet based E-mail system was designed by a Computer engineer - Ray Tomlinson in late 1971 while working with ARPANET. Tomlinson used a file transfer protocol to send electronic messages to any computer on the ARPANET network. The first email was sent between two computers that were actually sitting beside each other but connected through ARPANET. The first important email standard was called SMTP, or simple message transfer protocol. SMTP was very simple and is still in use - however, SMTP has a problem - it makes no attempt to find out whether the person claiming to have sent a message is actually the same person. This basic flaw in the protocol was later to be exploited by viruses and worms, and by security frauds and spammers forging identities. Some of these problems are still being addressed. 

In 2004, when Internet standards for email began to mature the POP (or Post Office Protocol) servers began to appear as a standard - before that each server was a little different. POP was an important standard to allow users to develop mail systems that would work with each other.  Now Internet mail is defined by a large number of standards and recommendations by the Internet Engineering Task Force (IETF). However, only a few of the protocols used in Internet mail are full IETF standards. Most of these standards are being used by for people writing Internet mail software.  

Posted Date: 10/23/2012 6:33:31 AM | Location : United States







Related Discussions:- History of e-mail, Assignment Help, Ask Question on History of e-mail, Get Answer, Expert's Help, History of e-mail Discussions

Write discussion on History of e-mail
Your posts are moderated
Related Questions
Simulated Annealing One way to answer the problem of local maxima and related problems like ridges and plateaux in hill climbing is to permit the agent to go downhill to some e

While pipelining can cruelly cut the time taken to execute a program, there are troubles that cause it to not work as well as it possibly shall. The three stages of the instruction

This web page looks at assembly languages in a common method. Specific illustrations of addressing modes and instructions from a variety of processors are used to demonstrate the g

Concept of instruction: The CPU is a semiconductor integrated  circuit chip consisting of a large number of transistors. In personal computers, the CPU is also referred by the

Programming Assignment CS252 Spring 2014 Write an ARM assembly language subroutine that performs according to the following specification (Caesar cypher). Given a mixed case al

Question 1 What is HTTP? How does it work? Question 2 What are the various methods of HttpServletResponse interface? Question 3 What is Web server? What are the va

difference between a compiler and a translator

Do you have expert can deal with netlogo

Problem 1. Explain the different categories of instructions. Explanation of 4 categories 2. Explain the steps to be followed for the addition of floating point numb

number of 4 to 16 line decoders required to get 8 lto 256 line decoder