midterm 2
Computer Science And Engineering 404 with Bob at University of California - Riverside
About this deck
By: daniel vasquez
Created: 2011-02-17
Size: 49 flashcards
Views: 16
Created: 2011-02-17
Size: 49 flashcards
Views: 16
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system software
all the programs that provide the infrastructure and hardware control for the computer. allow programs to function smoothly
operating system
set of programs designed to manage the resources of a computer. contains 5 funtions: starts the computer, manages applications, manages memory, handles messages from input and output, and provides user interface-communicates with user.
load
transfer from hard disk to memory
booting
loading OS onto memory
cold boot
starting a computer that is not already on
warm boot
restarting a computer that is already on
kernel
central part of the OS that consists of the instructions that control its actions
Bios
basic input/output system
bootup process
contains the bios and setup program, power on self test, loads the operating system, system configuration, lading system utilities, and authenticates users.
stystem configuration
stores information about software and peripherals choices
foreground
active window
background
inactive window but still open
preemptive multi-tasking
programs that are running receive a recurring slice of time from the CPU
buffer
area that temporarily holds data
pages
units of fixed size that OS uses if Ram is full
swap files
temp storage space
interrupts
signals that inform the OS that an event has occurred
occurred
user pressing a key, mouse moved
interrupt handlers
mini programs that automatically respond when an interrupt occurs
GuI
graphical user interface
menu-driven
avoid memorizing keywords for entering commands
popular operating systems
most popular- microsoft windows
first to bring GUI to the world- Mac OS
first OS written in C lang- Unix
better Unix System- LInux
disk system thats difficult- MS-DOS
PC VS. Mac
PC is more popular but, mac is better
fragmented
data scattered on a disk
archives
single file that contains two or more files stored in a compressed format
boot disk
helps the computer boot up if it tails to start normally
codec's
algorithm used to reduce file size
personal productivitiy programs
helps individuals do work more efficiently and effectively such as spreadsheets
GIF
simple images with solid colors-web
JPEG
bigger images-web
PNG
portable network graphics
BMP
larger files-windows bitmap
TIFF
Vector graphics
3D rendering program
adds 3D effects to graphic objects
proprietary files
files whose format is patented or copyright protected
mp3
most compressed CD quality 12:1
spyware
internet software downloaded without consent
web-hosted technology
capability to upload files
adware
collects information about your internet habits
packaged software
mass market that includes home and business users
intergrated programs
single program that manages an entire business or set of related tasks
software suite
bundle of programs-microsoft office
system requirements
the minimal level of equimpment that a program needs in order to run
beta versions
final phases of testing
documentation
files that come with software that is downloaded off the internet
validate
product keys
commercial software
purchased software
shareware
software with trials
freeware
software given away for free
About this deck
By: daniel vasquez
Created: 2011-02-17
Size: 49 flashcards
Views: 16
Created: 2011-02-17
Size: 49 flashcards
Views: 16
About StudyBlue
STUDYBLUE makes things that make you better at school.
Things like online flashcards with photos and audio.
Things like personalized quizzes and friendly reminders about when (and what) to study next.
Think of it as a digital backpack™: access to all of your study materials online and on your phone.
STUDYBLUE exists to make studying efficient and effective for every student, for free. Join us.
“I have been getting MUCH better grades on all my tests for school. Flash cards, notes, and quizzes are great on here. Thanks!”
Kathy
Kathy