More CES perspectives
"Young people spend more time with their Windows PC than watching TV," he said.
In a speech with few concrete announcements, Mr Gates outlined how his firm's latest operating system Vista would be the tool to connect people.
Mr Gates also confirmed that next year would see his last keynote speech at CES as he steps down as head of Microsoft.
He said he had offered to come back the following year but that he might "talk more about infectious diseases than software", referring to his philanthropic work.