bcraig, you may need to buy or borrow a separate keyboard, either wired or wireless. Plug it into a USB port and try to boot the laptop. If it works and you can log in, then try the driver replacement Swifty described. If that's beyond your skill level, take it to a shop. Or to a teenager.
Here’s a curve ball. Shut down the computer turn it over and remove the battery. Then plug it in with only ac power and the battery out then reboot. Try the keyboard if it works you have a bad battery that can cause said issues.
