Started by the Department of Defense, was called the ARPANET project in 1969.
The Internet is the largest computer network in the world, connecting millions of computers. A network is a group of two or more computer systems linked together.
Internet Growth Trends 1977: 111 hosts on Internet 1981: 213 hosts 1983: 562 hosts 1984: 1,000 hosts 1986: 5,000 hosts 1987: 10,000 hosts 1989: 100,000 hosts 1992: 1,000,000 hosts 2001: 150 – 175 million hosts 2002: over 200 million hosts By 2010, about 80% of the planet will be on the Internet
EMAIL DEFINITIONS ABUSE CONNECTING TO INTERNET INTERNET
An ISP may offer either narrow band or broad band connection (or both).
Band width refers to the amount of data that can be sent via modem or
network connections measured in bits–per-second.
45% 55% Jan ‘05 32% 68% March ’06 Narrow band Users Broad band Users Year
Simple Mail Transfer Protocol ( SMTP ) : It is the protocol used to send email messages from one server to another. Post Office Protocol ( POP3 ): It stores the messages for the recipient. To retrieve the messages, the user must connect to it using email client or the online email service IMAP: It enables a user to check email from multiple computers at different locations.
Is your computer spewing SPAM???? Spam or Spamming is the abuse of electronic messaging systems to indiscriminately send unsolicited messages. Email Spam is the practice of sending unwanted email messages frequently with commercial content, in large quantities to an indiscriminate set of recipients. EMAIL SPAM Unsolicited Bulk Email Unsolicited Commercial Email
Just Read this ! Spam's containing long, winding messages.
Fake Anti Spam Sites.
Fight against SPAM
Coalition Against Unsolicited Commercial
E mail ( CAUCE ).
National Fraud Information Center (NFIC)
SCAM Scams are emails cleverly disguised as coming from real companies when they are actually trying to know your private information such as passport number, bank account, social security number etc. Again, it is one of the most common problems faced by Internet users . Work-at-home scams Nigerian scams Lottery scams Phisher scams
VIRUS : A computer virus is a small piece of software that attaches itself to a program or a file enabling it to spread from one computer to another
HOW DO I KNOW IF THE COMPUTER HAS VIRUS?!?!
The computer runs slower than usual.
The computer stops responding or locks up frequently
The computer restarts on its own.
Applications on the computer so not work correctly or are inaccessible.
It shows unusual error messages.
It shows distorted menus and dialog boxes
An antivirus program is disabled for no reason, and it cannot be restarted.
A program disappears from your computer.
Strange sounds play from the speaker unexpectedly
New icons appear on the desktop
E.g. of Virus : Melissa. A, Anti EXE, Trj.Reboot, Word Concept .