1.1 – Operating System Basics Flashcards
Operating Systems
- OS is required to get any functionality out of a computer system
- There are many types of OS, each with own features & functions
o Make HD work
o Utilize all RAM in machine
o Utilize speed of your processor
o Install all apps you want to install
Common Functions
- Interact with the system
- Drivers to communicate with HD
- Apps to provide additional functionality
- File management features = copy, move, delete files
- Network Connectivity = to connect to local resources & internet
- System security to prevent access from unauthorized users
Drivers
tells OS how to use hardware
EX: video card – install driver so video card can function
OS Types
Closed Source OS
are only available from a single organization [Windows]
OS Types
Open Source OS
can be distributed by many different organizations & code modified freely
o Download source code & change source code
Microsoft Windows
Closed Source
Desktop / Laptop
Apple macOS
Closed Source
Desktop / Laptop
Linux
Open Source
Desktop / Laptop
Google Chrome OS
Closed Source
Desktop / Laptop
Google Android
Open Source
Mobile Device
Apple iOS / iPad OS
Closed Source
Mobile Device
User Interface
control OS with CLI & GUI
CLI = Command Line Interface
o This kind of OS is controlled by typing commands into a prompt
o Most common command line OS = DOS & CISCO’s IOS
GUI = Graphical User Interface
o Uses graphics
o Provides the icons we click on & mouse pointer that lets us click on them
o All Windows have GUI that we use to interact with it
