Hi,
you are creating many to many relationships.
Now you have two table:
First table, computer: ID, IP, USER, RAM, VIDEO...
Second, software: ID, NAME, HOUSE, VERSION...
Make a third table with link beetwen computer and software
Third table: ID, PC_ID, SW_ID.
Now you can assign to a PC many software and assign a software to many pc without any data replication.
I hope this help you, but you can find a lot on the net about this...