I use computer everyday. I check my e-mails, play games, visit some sites, type my writings on computer. If there is no computer our life will be inconvenient.
(2) I've never attended computer institute. When I was in university, the seniors of my department taught me how to use computer. And I learned by myself reading a computer manual. If I had a problem about computer, I would ask my friends.
(3) I don't know much about computer. I can only use word-processor program and internet. If I have some problem on software or hardware I can't help calling the service department. I think you'd better have some knowledge about computer.
(4) When I got married, my husband had a computer that has been 3 years. It was a Hyunju pentium. But 6 months ago, we bought a new computer. We just changed the body of the computer, and have been using the old monitor. We bought the body for about 600,000 won. It was assembled computer. There are a lot of software in my computer, but I know only some software's usage.