Zend certified PHP/Magento developer

Computer display doesn’t show image

When I was on Ubuntu, installed on my flash drive, I took out the flash drive while the OS was still running, forgetting it isn’t on my hard drive. Ubuntu crashed, so I restarted it with the flash drive in, after remembering it. When my computer turned back on, the monitor showed nothing. I tried booting it up with and without the flash drive in, and nothing showed. I tried another monitor too, but still, it didn’t work. Is there anyone who knows how to fix this, or what might be wrong?