ICT: Lesson 3 Flashcards
Communicates directly with computer’s circuitry
provides the foundation upon which application software and the computer user can use the system
Includes the computer’s operating system, device drivers and basic system utilities
System Software
System software helps peripheral devices like printers or mice communicate with the system and application software
Device drivers
Helps maintain the computer or operating system
File manager
Backup software
Disk manager
Utility software
The software that supports a computer’s basic functions, such as scheduling tasks, executing applications, and controlling peripherals.
Operating System
Have to type instruction
Operating System – Command Line
Used simply by moving a mouse pointer on the screen and clicking an on icon or file menu selection
Graphical User Interface
Meant to control the use and distribution of the software within the copyright rights of the software creator.
Software License
Proprietary software - owned by a company or individual
Must pay for
Cannot modify
Commercial / Closed Source
Not owned by any company or individual
user is allowed to modify the software code to suit their needs and is allowed to re-use the software without additional licenses.
Any modifications must be made public
Can NOT charge for original software or any modifications
Open source
Commercial software typically installed on desktop computers
Maintains a large percentage of operating system market share
GUI differs significantly from competitors
Supports the largest amount of application software
Frequent target of virus attacks because of large market share
Microsoft Windows
Introduced before Windows
Commercial software built on an open-source operating system called UNIX
Smaller market share compared to Windows because Mac OS is installed only on Apple computers
Smaller market share benefits users because virus developers focus on creating Windows viruses
Fewer versions of application software available compared to Windows
Mac OS
Smallest market share of all three operating systems
Popular among technology community due to the many distributions of open-source (free) operating systems
Can run on older machines because it does not require as many system resources (RAM, CPU and hard drive space)
Fewest number of available applications
Nearly virus-free due to small market share
Linux
Very large market share because it can be installed on almost every type of smartphone and tablet
Uses icon- and widget-based home screen
Preloaded with an online store called Google Play, which allows users to download millions of audio tracks, movies, TV shows and applications
Google Play offers both free apps and fee-based apps
Google Android is highly customizable, making it a favorite for technology-savvy consumers
Google Android
Smallest market share compared to Android and iOS
Developed years after Android and iOS
Uses “Live Tiles” that provide live updates on home screen instead of icons to open the related apps
Preloaded with an online store called Windows Marketplace
Windows Marketplace has substantially fewer apps available compared to its competitors
Apple iOS
Focused on the need of the user to complete a certain task or perhaps a coordinated group of tasks
Can be offered as a single application or of a bundle of related applications like Microsoft Office.
Application Software
