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30 Cards in this Set

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  • Back
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
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