My 1st generation iPad was basically rubbish - I'd had it in a wall-mounted, handmade, pine frame in the kitchen for recipes for 2 years but its browser was regularly crashing :-( I sold it on eBay for about £80 just before Xmas :-) I spent the money on a G4 iBook :-) (more about it below).
My main (most powerful) iMac has a 2TB hard drive in it and a WD MyBook for Mac 4TB external drive used as its Timemachine :-)
Media Server is now a WD MyCloud 6TB drive. Both my flat screen TVs connect to it via WD TV Live boxes. When I go on holiday I take one of them with me and 2 WD My Passport 2TB drives which hold most of my TV show Boxed Sets and Movies. The WD TV Live model I have has both analogue and HDMI outputs so I can connect to the hotel room's TV and plug either WD My Passport drive into one of the USB ports of the WD TV Live to watch my media. I also take an old Samsung Chromebook with me to backup photos I take with my phone to one of the WD My Passport drives.
In my bedroom I have an old G4 1.25GHz iMac with 1.25GB RAM (recently replaced the 512MB SODIMM with a 1GB SODIMM) and a 500GB SATA drive which has a small SATA to ATA100 adapter board to talk to the iMac's ATA100 interface.
Currently typing this on my G4 1GHz iBook with 1.25GB RAM (recently replaced the 512MB SODIMM with a 1GB SODIMM) and an 80GB hard drive (recently replaced the 60GB hard drive) .
I've been using the iBook to learn Java with a book called "Head First Java". Wanted to learn Java so I could use iText to do a project for work where a large quantity of pdf documents from the 1940s have to be electronically stamped with a message and a hand written signature. Unfortunately, the book "iText in Action" I bought is the old edition and the current version of the iText library available online isn't compatible. Now that I have learned Java, I'm close to being able to get things working :-)
When I do get things working, I will be able to reveal more about the documents as they will be able to be published online -- they're currently Classified :-(
Watch this space lol