Re: computer idioms and phrases
For me, when my computer simply stop taking any commands, I can't type anything or do anything at all (except eventually force a shutdown), then the computer "freezes". I have to force a shutdown and reboot.
I don't know if calling it a "hang-up" is specifically Canadian English, but it's not used in British English (unless it's by IT technical people - I'm coming at it simply from the point of view of a user).
Remember - correct capitalisation, punctuation and spacing make posts much easier to read.