Well, for the computer if you have an online backup service, just grab the laptop if you have one. If only a computer, and you have time, then save all your documents to a flash drive. The cost of the online service is well worth the expense of losing the information for this and computer crashes.
As for the machines, yes any vintage machine I would grab. If it's in a cabinet, then unfasten and take along if you have the time to remove it. I would of course grab a new portable and one or two containers of projects to work on.
These items are of course along with all of the other emergency list items for evacuation.
I pray that all in the fire area will stay safe including all the animals.
Pam M