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46 Cards in this Set

  • Front
  • Back
consists of two primary types of programs: the operating system and utility programs.
system software
small programs that perform many of the general housekeeping tasks for the computer, such as system
maintenance and file compression.
Utility programs
group of programs that controls how your computer system functions.
Operating system (OS)
Machinery that is required to perform a repetitive series of specific tasks in an exact
amount of time requires what type of OS.
Real time OS (RTOS)
examples that use this type of OS: Scientific instruments
Automation and control machinery, robotic
devices
Video games
RTOS (real-time)
examples that use this type of OS:
PDAs
Embedded computers in cell phones,
cameras, appliances, and toys
single user-single task
examples that use this type of OS:
Personal desktop computers
Notebooks
single user- multitask
examples that use this type of OS:
Networks (both home and business)
Mainframes
Supercomputers
Multiusers
examples of this type of OS
-Nucleus RTOS
-QNX Neutrino
-Lynx.
RTOS
examples of this type of OS:
Palm OS
Pocket PC (Windows CE)
Windows Mobile
MS-DOS
Symbian OS
Linux
single user-single task
examples of this type of OS
Windows Vista, XP, and 2000
Mac OS X
Linux
single user,multitask
SUSE Linux Enterprise
examples of this type of OS:
Windows Server 2008
i5/OS
z/OS
Linux/UNIX
Unicos (offshoot of Unix)
multiuser
These computers are responsible for storing, managing, and simultaneously processing data from all users.
Mainframes
These computers are used to solve complex problems or to perform massive
computations.
Supercomputers
The combination of operating system and
processor is referred to as a computer’s :
Platform
The most recent version of the Mac operating system, Leopard, is based on the--- OS:
UNIX
Software that is freely available for developers to use or modify as they wish.
Open source
Interface in which you enter commands to communicate
with the computer system.
Command-driven interface
Interface in which you choose a command from menus displayed on the screen.
A menu-driven interface
Interface that use the point-and-click technology of the mouse and cursor
GUI (graphical user interface)
the printer generates this
unique signal that tells the operating system that it is in need
of immediate attention
an interrupt
this process processes the task assigned to a higher priority before processing a task that has
been assigned a lower priority.
preemptive multitasking.
a “memo” in this special location in RAM
stack
if the printer is in use, the OS puts a request in a storage area in RAM known as:
buffer
a program that helps coordinate all print jobs currently being sent to the printer
spooler
this is formed when there is one more than one print job is waiting
queue (line)
What was founded to give children in developing countries a
better opportunity to “learn, share, and create"?
Who founded it?
- the One Laptop Per Child (OLPC)
- Nicholas Negroponte
this notebook, presented in developing countries, is small and has a comfortable, child-sized, built-in handle.
- what is its operating system?
-the XO
- the Sugar
Amount of RAM usually needed for home computers
1 to 4 GB ( 1-2 Gb is sufficient )
the operating system swaps out from RAM the data or instructions that have not been recently
used and moves them to a temporary storage area on the hard drive called the:
swap file/ page file
facilitates the communication between the hardware device and the operating system.
device driver
The devices whose drivers are included in Windows are
called :
plug n play (PnP)
blocks of code that software
applications need to interact with it.
API's (applications programming interfaces)
advantages of API's
-avoid redundancies in software code
-make it easier for software developers to respond
to changes in the operating system.
If you think a recent driver update may be making your computer unstable, you can
use the --- feature to get rid of the new driver and replace it with the last one that worked.
roll back drivers
various hardware configurations
that are permanently are stored in this special kind of memory that uses almost no power.
CMOS
kernel is said to be--- because it stays in RAM the entire time your computer is powered on
memory resident
special diagnostic mode designed for troubleshooting errors.
safe mode
a feature in the operating system that lets you view and change the properties of all devices attached to your computer.
device manager
the first interaction you have with the operating system and the
first image you see on your monitor.
the desktop
groups of icons collected for easy access
ribbons
display view of smaller icons and file names. This is a
good view if you have a lot of content.
list view
a default setting that
smoothes the edges of screen fonts to make text easier to read.
clear type
regroups related pieces of
files on the hard disk, allowing the OS to work more efficiently.
disk defragmenter
a Windows utility that
checks for lost files and fragments as well as physical errors on your hard drive.
ScanDisk
the smallest segments within the sectors.
clusters