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30 Cards in this Set
- Front
- Back
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What an operating system needs to manage memory?
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must ensure that instructions and data from one area of memory don’t “leak” into an area allocated to another program
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OS keeps track of storage resources
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1.OS acts as a filing clerk
2.remembers the names and locations of all your files and keeps track of empty spaces where new files can be stored |
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operating system gets involved with peripheral devices
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1. To ensure that they function correctly
2.OS controls peripherals to ensure input and output proceeds in an orderly fashion |
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user interface
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can be defined as the combination of hardware and software that helps people and computers communicate with each other
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Graphical user interface (GUI)
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Provides a way to point and click a mouse to select menu options and manipulate graphical objects.
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Command-line user interface
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Requires users to type various memorized commands to run programs and accomplish tasks
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OS’s small bootstrap program
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resides in ROM and provides the instructions to load the core parts into memory when system boots
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kernel
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bootstrap program
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utilities
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-Launch programs
-Manage files -Get help -Customize the user interface -Configures equipment |
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different operating systems
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-Single-user operating system
-Multi-user operating system -Network operating system -Multitasking operating system -Desktop operating system |
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Mac OS similar to windows
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-Developed several years before windows, it still has a GUI interface
-Both have windows, icons, menus and pointers |
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UNIX
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was developed in 1969 at AT&T’s Bell Labs
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Linux
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-was developed in 1991
-Is distributed under the terms of a General Public License (GPL) --Red Hat Linux, Caldera OpenLinux, and Debian GNU/Linux |
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DOS
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-First operating system that most people have used
-(Disk Operating System) was developed by Microsoft -Is in kernel of Windows 3.1, 95, 98 and ME -no mouse, commands all typed |
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PDA operating systems
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Personal digital assistant
ie)Palm OS, Windows Mobile OS |
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|
What an operating system needs to manage memory?
|
must ensure that instructions and data from one area of memory don’t “leak” into an area allocated to another program
|
|
|
OS keeps track of storage resources
|
1.OS acts as a filing clerk
2.remembers the names and locations of all your files and keeps track of empty spaces where new files can be stored |
|
|
operating system gets involved with peripheral devices
|
1. To ensure that they function correctly
2.OS controls peripherals to ensure input and output proceeds in an orderly fashion |
|
|
user interface
|
can be defined as the combination of hardware and software that helps people and computers communicate with each other
|
|
|
Graphical user interface (GUI)
|
Provides a way to point and click a mouse to select menu options and manipulate graphical objects.
|
|
|
Command-line user interface
|
Requires users to type various memorized commands to run programs and accomplish tasks
|
|
|
OS’s small bootstrap program
|
resides in ROM and provides the instructions to load the core parts into memory when system boots
|
|
|
kernel
|
bootstrap program
|
|
|
utilities
|
-Launch programs
-Manage files -Get help -Customize the user interface -Configures equipment |
|
|
different operating systems
|
-Single-user operating system
-Multi-user operating system -Network operating system -Multitasking operating system -Desktop operating system |
|
|
Mac OS similar to windows
|
-Developed several years before windows, it still has a GUI interface
-Both have windows, icons, menus and pointers |
|
|
UNIX
|
was developed in 1969 at AT&T’s Bell Labs
|
|
|
Linux
|
-was developed in 1991
-Is distributed under the terms of a General Public License (GPL) --Red Hat Linux, Caldera OpenLinux, and Debian GNU/Linux |
|
|
DOS
|
-First operating system that most people have used
-(Disk Operating System) was developed by Microsoft -Is in kernel of Windows 3.1, 95, 98 and ME -no mouse, commands all typed |
|
|
PDA operating systems
|
Personal digital assistant
ie)Palm OS, Windows Mobile OS |
