Software - Operating System- Chapter 5

Important Note

Early computers were not user friendly. The OS of the first PC's in the 80's was MSDOS. It was a command-line interface. The user had to know the name of the command in order to execute it. Today's interface is a graphical-user interface - point and click. Because of the development of the GUI, computers became easy to use. A person did not have to be a computer expert in order to use it. To support a GUI, the computer must have a very fast CPU and a large RAM. It was the introduction of large-scale integrated circuits that allowed CPU's to become fast and cheap and memory to become cheap enough to support the GUI.

Define the following terms

Command Line Interface
Graphical User Interface
Multitasking
Virtual Memory
Windows
OSX
Linux
Chrome OS

Give a brief overview of the following OS function:

Booting
Interfacing with users
Device Configuration
Network Management
Resource Manangement
File Management
Security

List the main operating systems for mobile devices

Last modified 9/12/2017