Information Technology:
An Introduction for Today's Digital World
Errata Page
Chapter 2: page 47, "To further protect the hardware, do not work on carpeting and wear lose clothes that will not retain a static charge" should be "loose"
Chapter 3: page 74, immediately before table 3.5: "1 AND 1 = 0" should be "1 AND 1 = 1"
Chapter 3: page 74, table 3.5: "1 XOR 1 = 1" should be "1 XOR 1 = 0"
Chapter 3: page 77, example midway through the page should be:
1001
+ 1011
instead of + 1001.
Chapter 5: page 147, in the second instruction, ls ../../CSC362, this should be ls ../CSC362
Chapter 5: page 149, third instruction from the top (ln) should read ln -s ~zappaf/videos/v1.avi STUFF/video
Chapter 5: page 149, under DOS, the equivalent to pwd in DOS is cd <enter>
Chapter 10: page 275, the regular expression for a social security number is missing the hyphens. It should be: [0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9][0-9][0-9]
Chapter 11: page 313, fourth crontab example should read:
0 0 31 12 * -- every December 31, at midnight
Chapter 12: page 357, SMPT should be SMTP
Chapter 14: page 425, second to last paragraph says "or one of -eq, -ne, -gt, -lt, -ge, -lt for numeric comparison" should read "or one of -eq, -ne, -gt, -lt, -ge, -le for numeric comparison" (the last one should be -le not -lt)
Chapter 15: page 469, last bullet: HTTPS uses port 443, not 431.