Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
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
|