4 software programs used most often

I guess that I might have 4 software programs that I use a lot.  The 1st would be Microsoft office.  I use the word document program for all my homework.  The 2nd would be Myitlab.  I used it for homework also.  The 3rd would be my finance lab.  I used it for my business finance class I had.  The 4th would be Norton security.  I used it to protect my computer against viruses.