Hard to answer to short but I will try the head gear let's you talk to people on the internet
Answer: Without GUI's being developed, we most likely would still be using terminal systems. Terminals require command/text input rather than mouse or other input. The invention of GUI's enabled people to use simpler input methods, rather then clunky text input systems. To sum, GUI's simplified the computer experience as we know today.
Hope this helped :)
I SURE HOPE IT DOES (this is the best vibe if you dont get this you are an uncultured swine)
Answer:
Resource Monitor
Performance Monitor
Computer Management and Administrative Tools
Advanced User Accounts Tool
Disk Cleanup
Local Group Policy Editor
There is alot do u want them all?