Operating Sytem Flashcards
Features of operating system (4)
allow user to communicate with computer
stored on HDD/SSD
enables computer system to function correctly
provides environment where applications can be run
Examples of operating systems (4)
Microsoft Windows
Apple Mac OS
Google Android
Apple IOS
Functions of operating systems (4)
handles interrupts
manages memory
allows multitasking
provide interface
2 types of HCI
CLI (Command Line Interface)
GUI (Graphical User Interface)
Feature of CLI (2)
commands to be typed in for simple actions
Features of GUI (2)
allows user to interact with computer using pictures/icons
uses WIMP technology
WIMP stand for
windows icons menu and pointing device
Advantages of CLI (4)
user in direct communication with computer
user not restricted to number of predetermined options
possible to alter computer configuration settings
uses small amount of computer memory
Disadvantages of CLI (3)
user needs to learn number of commands to carry out basic operations
commands need to be typed (time consuming, can cause error)
command must be typed using correct format
Advantages of GUI (3)
user doesn’t need to learn any commands
icons represent applications - more user friendly
pointing device click on icon to launch application - simpler than typing commands
Disadvantages of GUI (3)
uses more memory than CLI
user limited to icons provided on screen
needs operating system to operate
Who uses CLI (4)
programmer
analyst
technician
someone who needs direct communication with computer
Who uses GUI (4)
person who wants to run software
person who wants to play games
person who wants to manipulate photos
person with less knowledge on how computer works
Define firmware
program that provides low level control for devices
Define an interrupt (2)
signal sent from device/software to microprocessor
causes microprocessor to temporarily stop what it is doing to service interrupt
