In computer science, we call something like that RAID 1.
You could also snag a free e-copy of most older classics here: Project Gutenberg
You could store them on Kindle Scribe or other e-reader. Or just a regular PC or hard drive.
Happy collecting!
In computer science, we call something like that RAID 1.
You could also snag a free e-copy of most older classics here: Project Gutenberg
You could store them on Kindle Scribe or other e-reader. Or just a regular PC or hard drive.
Happy collecting!