I have 2 computers in my home. On one, when I do a Google search it gives me what I've asked for. On the other, it brings up web sites that have no relevance to what I asked for.

It sounds like a common virus. Use the following tools to correct it:

Thank you for downloading Malwarebytes Anti-Malware from Download.com (http://dw.com.com/redir?edId=3&siteId=4&oId=3000-8022_4-10804572&ontId=8022_4&spi=6d1333d92ab597639a4c036d7b9515d7&lop=link&tag=tdw_dltext&ltype=dl_dlnow&pid=11164457&mfgId=6290020&merId=6290020&pguid=Yapw6QoPjAUAAF5qJHcAAACQ&destUrl=http%3A%2F%2Fdownload.cnet.com%2F3001-8022_4-10804572.html%3Fspi%3D6d1333d92ab597639a4c036d7b95 15d7%26part%3Ddl-10804572)

And

http://download.bleepingcomputer.com/sUBs/ComboFix.exe

Afterwards, make sure you antivirus is up to date and running correctly.