This is a pen drive click here All you do is plug it into your computer and copy the files onto it. This particular one holds 1 GB or 1024 MB, which is a lot of photos. Copy them onto there and then put it somewhere safe, the next time you want to look at your photos just plug them in.
If its a lot of photos you have then the CD/DVD route will probably be better, do you have a CD/DVD writer on your computer?
If so then put a blank CD in your drive, copy your photos onto it then click the write button. Once they are safely copied you can delete them off your hard disk