All of my computers are plugged into the same router. Can the other computers see what I do online?

My computers are not actually "networked" I can't access thier desktops and they can't access mine. But I'm still curious to see if there is any way that any other home users can see what i'm surfing for online from my personal comptuer

All of my computers are plugged into the same router. Can the other computers see what I do online?

They cannot see what you are doing online, unless they have installed any stealth software, which can log all ur keystrokes and also the pages u have visited. Also they cannot access ur system, since each computer are in a different domain or workgroups. If they know ur administrator or user password, they can login and check ur browsing history from the Browser.

Router is just to connect 2 different networks and just do routing from Private to Public IP/Internet.

Hoe this solves ur query....

All of my computers are plugged into the same router. Can the other computers see what I do online?antivirus downloads

Nope, no worries. Or very few at least. Hackers might be able to figure out what you are doing but with proper security you are fine.
The only one who can see what you do is the person who manages the router, since you need a password to log into its page. From there you can see where each ip/computer is browsing. So if you manage the router, you the only one, otherwise someone else, and that is from any computer in the house/work. If you manage the router, do not use the default password, change it.
Potentially, yes.