/dev/random question

[Wojciech Puchar]

>
> Not high-handed. Logical. The difference between /dev/random and /dev/urandom
> was that /dev/random could block IO if it didn't have enough entropy

in systems where /dev/random is separate simply abusing it by cat 
/dev/random >/dev/null make all other programs using it very very slow.
as unix is a multiuser system and /dev/random is readable for all - it 
wasn't very good.