It actually used 13 DMF floppy disks.
QUOTE
Windows 95 has been released on both floppy disks and on CD-ROM, as some computers at the time did not include a CD-ROM drive. The floppy disk version of Windows 95 came on 13 DMF formatted floppy disks, excluding additional software that some releases might have featured, such as Internet Explorer. Microsoft Plus for Windows 95 was also available on floppy disks.
http://en.wikipedia.org/wiki/Windows_95MS stopped assisted support for Windows 95 on January 1, 2002.