Back in the early 90's we used to have a program we ran on machines to test the hardware was OK. Just had a quick Google and it seems some similar programs still exist. I'm hoping to be getting my hands on a second hand laptop in a couple weeks, so would like to run some tests on the machine before I hand over the cash. So basically I'm wondering if anyone has used any such programs recently, and which ones are the best. Free/open source programs ideally, but others if especially good. I can't for the life of me remember the name of the program we used to use, we just called it the 'diags disc',lol. Thanks!