|Date||Aug. 7th 2006|
|Next||I Have Owned Two Electric Skateboards|
Pointers is the 138th xkcd comic.
In Computer Science, a "pointer" is the address of a memory cell in a computer's RAM that are displayed like black hat shows in the comic.
A programming statement like
int a = 5;
will write the integer value "5" into the memory cell whose address is remembered with the letter "a". Behind "a", there is a pointer like 0x3A28213A, which would mean the value is to be found in the cell with that number. Like everything else inside a computer, RAM addresses are binaries, displayed in the human- readable Hexadecimal form.
It's a pun: A "pointer" is also a hint in an everyday situation.
"Every computer, at the unreachable memory address 0x-1, stores a secret. I found it, and it is that all humans ar-- SEGMENTATION FAULT."
The "secret" is unreachable, as computers will not allow it to be spread.