For the USB problem, theoretically you could daisy chain powered hubs. Connect a powered USB hub to the computer using a 15 foot cable. Then connect another powered USB hub to that one. Keep going like this to get where you need to be. The maximum extension is 5 powered hubs. This is all theoretical. (Disclaimer) Or you could check out the website linked below. I haven't used this product. I only found it in a web search. This is my reference for this info. Pooh Bear Here is a link that might be useful: Active Repeater Cable

Mine is in another room, in my Hoosier cabinet. I have a wireless network, and the printer is hooked up to another computer that is on all the time. I rarely actually print, most stuff is printed to Acrobat as a pdf file and saved on my computer. I share the printer and a lot of the folders on both computers so I can go back and forth between them and open, print and manipulate files on either computer. Here is a link that might be useful: Computer in kitchen

Having seen the pics, these desks strike me as very light-duty, poor-quality items that shouldn't be in a school. You've got a variety of problems for which there's no one magic bullet. You can certainly patch them together somewhat, but getting "many years" more use out of them is not likely. The material is particleboard with a melamine coating - not "laminate." The "connector bolts" you referred to aren't bolts at all. The are a common type of knockdown fastener. Lee Valley carries them, so you can see a picture of the uninstalled fastener here. The post of each fastener is threaded into a barbed plastic insert that's simply pressed into an undersized hole. These fasteners assemble quickly and avoid having screw heads showing on the tops of the desks, but they aren't very strong. When they are pulled loose the barbed plastic fittings are likely to enlarge the once-undersized holes they're in; you can tap the posts back into their holes, but they'll loosen again fairy easily. To make any real headway, assume that each desk will have to be completely disassembled and every compromised joint will have to be fixed somehow. The posts of the knockdown fittings should be tapped back into their holes or turned to screw them deeper into their plastic anchors. Screws that have stripped must be replaced with longer screws, with coarse threads, for which you'll need to drill pilot holes. In the first picture you need to straighten everything out so that the vertical PB (particleboard) member isn't splayed away from the keyboard tray, and tighten up the loose fasteners where possible. Then you'll have to improve on the original design by adding something to keep the problem from recurring. My inclination would be to add a couple of triangular wood gussets between the desktop and the outer face of the vertical PB member that carries the keyboard tray slide. In the second pic you might remove the desktop and try to get the posts of the knockdown fasteners appropriately seated by tapping them down or (maybe) turning them to thread them more deeply into their embedded plastic anchors. As mentioned above, they'll probably come loose again, and do so more easily the second time. In the long run you may have to drill down through the desktop and drive some screws into the legs. This may be an unappetizing thought but, done right, it could add a lot of strength. It's harder to see what's going on in the third pic, but perhaps the keyboard tray falls in the student's lap because of the splaying shown in the first pic? Adding the gussets I described, to prevent the splaying, should address this problem as well. In the last pic, where a chunk of the PB is gone, there's no way to put Humpty Dumpty back together the way he was originally. See if you can relocate the fastener that blew out to another, undamaged part of the edge.

My husband is an engineer who needs a desktop for design work at home. Most people though don't these days. Most adults need some sort of computing device for searching the Internet, consuming media, social media, and maybe paying bills and tracking their financial affairs. If you're like most people then a desktop is completely unnecessary and just takes up space. The nice thing about portable computing is that it can be put away when not in use or taken wherever you need it. Many people rarely use a printer these days but if you do need one it doesn't need to be tethered to a computer with the advent of wireless printing. It's the same way now with other peripherals such as routers or external hard drives used as backups. This gives you the freedom to put your components in a closet, on a bookshelf or whatever space is most convenient for you. If you do need an actual home office with a door that closes you have more flexibility too. You now don't need to make sure your office is properly wired or worry about making space for a purpose built computer desk.