Who invented the CD and floppy and when?

The digital compact disc, now commonplace in stereos and computers, was invented in the late 1960s by James T. Russell. The first floppy was made by IBM around 1970 (this was an 8" floppy). The 5 1/4" floppy was introduced in 1976 and Sony pioneered the 3 1/2 floppy with a hard shell in 1981.

It is True cause ibm OWNES Actually, it was Invented by Yoshiro Nakamatsu in the 1970's but he licensed the patents to Sony so gets no credit for inventing the basic technology.