Difference between OS and "apps"?

[Android Question]

I have two Tab 3's. My nephew loaded 180+ games on his. He is 6. When I tried to start cleaning up memory space by deleting "apps" he will never use, tab shut down. Will not respond to charging. Will not turn on. I own an identical Tab3, so I know my chargers are working fine.
What's up? Apps should not affect operating system. Do I need to reset? How?
kirkhiltonproctor24860@gmail.com
(919) 685-5812
I need to chat with a human. KP

 

[Rukbat]

If you deleted some system apps, you deleted what makes the tab run. It's fixable, but post in the Tab 3 section, so someone with that tab (and the files you need) can take you through it.

Apps should not affect operating system.

They will when the operating system is composed of apps.