What is "Stock Category"? Tally 7.2

stufflearn (Practioner) (102 Points)

31 March 2010  
We usually enter stock items in "Stock Group" and maintain stocks. I just noticed there is one more option called "stock category" right below the "stock group" option. I would be glad if someone explains to me what the use of "stock category". Is it an alternative for "Stock Group"?