I'm new here. I've got some learning to do. Any input would be appreciated. Here's what I've got. I have a 500gb Mac mini 2012 version. I have a 1tb time machine hooked up. I've not configured anything special. I use this Mac mini for photos of my family and web browsing. I have 25,000 photos on it and it's getting sluggish. I'd like to update to a SSD but I truly have no idea what the best thing to do is. An external desktop SSD? Internal SSD? I'd like to do a desktop SSD or multiple. Right now, I'm not even totally sure what the time machine does for me. I thought it was backing up my photos. But I cany find a folder with all my pictures on it. I'd like a reliable, speedy backup device of all my photos in tandem with the time machine. Thank you all.