I bought my desktop from Dell in '93. I'm cleaning house and found all these disks. Do I need them?

You don't need 1, 2 or 3. You want to keep 4 that's office not windows. If you have to reinstall office you will need to buy it if you don't have the disc and key. 5 is old and outdated and you don't use it but you might? I would get rid of it. 6 you don't need. Discs 7,8,9,10 and 11 you should keep you could most likely download all of them or newer verisons from dell but if you system crashes you will need them.