If you feel that your existing computer is not functioning properly. If there is a hardware problem then you can get new one, if there is software/hacking/virus problem then contact your service provider.
when it no longer works, get another one.
a COMPUTER IS BETTER
Depends on what is needed to be connected. if you want connection from a computer to a notebook, you should get a router for WiFi. if connection is from one desktop to another, just buy a Ethernet Hub that should do the job.
ummm buy another one
In Computer repair stores
Computer
It depends on what do you want to use the computer for, from that point it should be easy to tell what qualities that computer should have.
You should buy your computer to last for atleast five years. Then only there is a meaning in buying in computer. When you are buying a good laptop or computer you spend a lot of money. There should be a meaning in spending that amount of money.
Sure.
buy a new one.
Well if you are on the same account it won't make you buy it again.
A TV Because You Can Watch Telly On Your Computer x