Terms and Definitions for May the 5th.

1.- Hexadecimal - A base 16 number system.

2. - Word - An ordered set of characters that is treated as a unit.

3.- Octal - A base 8 number system.

4.- Pure Binary - uncoded binary.

4.- Binary-Coded Decimal (BCD) - A code in which each decimal digit is represented by a group of 4 binary bits.

5.- Excess-3 Code - A code in which the decimal digit n is represented by the 4-bit binary code n+3.

6.- Gray Code - A non weighted binary code in which sequential numbers are represented by codes that differ by one bit.

7.- Alphanumeric Code - A code used to represent the letters of the alphabet and decimal numbers. The computer keyboard.



Thanks to Introductory Computer Mathematics, Second Edition, Nigel P Cook, Prentice Hall, pages 210-222.

My blog of interest for May the 5th

iFrame attacks surge. SQL injection attacks on Microsoft Internet Information Servers last week left Web pages with malicious iFrames in them. It looks as if Panda Security is asking network managers to make sure their web pages are not infected. The number of infected Web pages spiked dramatically last week, and the vendor is offering free scans to check for malicious codes on companies Web pages. Wow!!!!

Microsoft: Web attacks take off...........oh my!!

It looks as if the criminals in computer land have changed their tactics in the last six months of the year 2007. Some of the tactics are as follows: dropping malicious email in favor of Web-based attacks, the # of Trojan-down-loader programs jump by 300%, malware items were up by 55%. Wow, is the Malicious Software Removal Tool (MSRT) that ships with Windows reliable? You tell me........................................ This article is from the magazine NetworkWorld, so I just copied their website, sorry if if does not take you there. Thanks Pro. "D".

Class Discussion on May the 5th for IT Foundations

Well.............the semester is winding down, and I am actually sad to be leaving this class. I was taught so much by Pro. "D", and I am so very grateful, meaning I have some background in a whole lot of different areas such as: XML, html, blogs, wiki's, computer math, imaging, and all the other areas I missed in between. This week we focused on the Computer Math, and hexadecimals, octal, and converting them to binary, and decimals, and vice versa. We also talked about the ASCII code and found out in a short term means the computer keyboard. Wow!!! We also talked about the BCD, the excess-3 code, and the grey code. Those terms will be on my terms list. Once again Pro. "D", we love you and thank you for all your help, you are the best in my eyes.