Web & Computer Systems
get information about an IP address
18.0.0.1
get information about a URL
google.com
find a port assignment
port 80
get information about a notable computer
Apple II
ask about a characteristic of a computer
How fast was the processor on the Atari 400?
get information about a data transfer device
802.11n wireless network
compute a data transfer time
data transfer time 10GB, 6Mb/s
RAID
compute RAID capacities
RAID calculator
RAID5 4 drives 1TB
get information about a file format
.pdf file format
find programs that support a specified format
applications that support .gif
look up a Unicode character
U+00F8
specify a range of Unicode characters
unicode 8900 to 8915
specify a character by name
em dash
find n-grams in a string
n-grams "it was the best of times it was the worst of times"
encode a string with the ROT13 substitution cipher
ROT13 "A quick brown fox jumps over the lazy dog."
compute a hash code for a string
Adler 32 "inverse cosine"
MD5 "A quick brown fox jumps over the lazy dog."
Display Resolution
get data on a computer display format
VGA display
compare formats
WXGA, QXGA
compute display characteristics from pixel count
2.5 megapixel 300dpi display
Passwords
generate a password
generate a 12 character password
generate a set of passwords
generate 5 alphanumeric passwords of length 10
analyze a password
analyze password SMtt76!
password strength for qwerty2345#
password strength for bobJoeBill
CAPTCHA
generate a CAPTCHA for specified text
CAPTCHA Wolfram Alpha
generate a CAPTCHA using random text
CAPTCHA
convert between hex, decimal, octal, and binary
987 in hex
354 hex to decimal
101110000110111011 binary to octal
CIDR
calculate IP parameters using CIDR notation