types of user interface
built in features of chrome OS
firmware boot
firewalls
authentication
100

user interfaces ( UI )

considering an option when operating system

100

offline access

allows you to be on apps without network 

100

verified boot 

device can only boot Google signed images
100

firewall

apart of system that is designed to block unauthorized access outward communication 

100
developer mode 

enrolls devices into a domain 

200

graphical user interface

allows user to interact with the computer by objects

200

chromebook settings

allows user to change accessibility on there chromebook

200

advanced RISC machine 

technology as their SoC 

200
iptables

kerner level of the system

300

command line interface

allows user to interact just by text


300

accessibility features 

helps with diverse needs on chrome

300

firmware

ROM chip