what are terminal keyboards*?
Well...they're keyboards for
terminals, lol. In order to understand both that and why there is a difference, you'd need to realize that the concept of dumb terminals and mainframes is a lot older than the concept of "personal computers" in general. Consequently, the development of the keyboard interfaces wasn't exactly "in sync" with computer keyboards.
In any event, the sort in question here are pretty close to being "PC compatible"...but the minor differences they have are dealbreakers for non-techy people.
It's important to note that a computer terminal is itself not a computer...simply a set of hardware used for
accessing a computer typically located elsewhere. You can't use a terminal on its own for anything, so if you were thinking of trying to get one of those terminals from CT or try to buy the same model they have, it'd be a massive waste of time and money.
should I go back to canadian tire and try the keyboard*?
it would be my first buckling spring experience
Do not attempt to mess with a store's equipment...as innocent as your goal may be, you could end up in a less-than-desirable encounter with store security and/or the police if they suspect you're attempting to alter stored information for products, etc. (as an example, they'd obviously want to prevent someone putting a $400 item on sale for $19.99, right? they don't know what you're doing and could react adversely)
why is it hard to make them working on a pc*?
It's not hard, you've just gotta know what you're doing.
I guess nothing bad could happen if I press on the blank keys*?
Maybe nothing, maybe something. All the keys send a code to the system, it just depends on if the system is set up to actually do anything with that particular key (and typically keys with no label will not be set up to do anything...or they could be duplicates of other keys and actually do something)
As for value, in good condition you could probably make a sale of such a keyboard for 20 bucks with no problem. 30, maybe. 40 is really pushing your luck and someone would have to really want one at that moment to pay that amount.