Computer Memory Organization TO SEE HOW MORRIS' WORM EXPLOITED "FINGER" YOU HAVE TO LEARN A BIT ABOUT COMPUTER MEMORY. THE ELECTRONIC DEVICES THAT FORM A COMPUTER'S MEMORY CAN ONLY STORE SEQUENCES OF 0's AND 1's (SURPRISED?). THE CIRCUITS NEEDED TO STORE EIGHT BINARY DIGITS ARE GROUPED TOGETHER IN UNITS CALLED BYTES. EACH BYTE IS IDENTIFIED BY A SEQUENCE NUMBER GIVING ITS POSITION WITHIN THE MEMORY. THIS NUMBER IS CALLED A MEMORY ADDRESS.

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This page is part of a section of lecture slides related to " The Internet Worm " within the topic "Computer Security: A Case Study?". Other slides within this section and other sections of slides for the topic "Computer Security: A Case Study?" can be accessed using the links below. Paranoia Raising Some Sample Security Problems The Internet Worm The Internet Worm What was "The Worm"? Finding Machine Names How the Worm Broke in Password Guessing The SENDMAIL "Trap Door" The Finger Server Bug Computer Memory Organization Computer Memory and Program Variables Memory Overflow The Finger Bug It Couldn't Happen Again! Could it?