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94 Cards in this Set

  • Front
  • Back
information system (5 parts)
data (information)
allows computers to connect and share information
guidelines people follow when they use software, hardware, and data
programs, consist of system and application software
system software
background software that manages internal resources
ex - operating system, Windows XP
application software
software that performs useful work on general-purpose problems
presenation graphics
to communicate or persuade
most powerful computer
physical equipment in an information system
aka midrange computers
fastest growing type
types - desktop, notebook, PDA's
system unit
contains the electronic circuitry, including the microprocessor and memory
primary storage, random access memory (RAM)
input/output device
translators between humans and computers
input devices
keyboard, mouse..
output devices
monitors, printers...
secondary storage devices
store data and programs
floppy, hard and optical disks (CDs, DVDs)
document files
created by word processors
worksheet files
created by spreadsheets
database files
created by a database management programs
presentation files
created by presentation graphics programs
concept describing the ability of end users to tap into resources well beyond their desktops
Computer Networks
connected computers that share data and resources
wireless revolution
the widespread and increasing use of mobile communication devices
the worlds largest computer network
WWW is an internet service, providing a multimedia interface
connect to remote computers, open and transfer files, display text and images, and provide an uncomplicated interface to the internet and the Web.
uniform resource locators (URLs)
in order to connect to other resources with a browser the Web site Address, or URL, must be located
hypertext markup language (HTML)
browsers interpret HTML documents to display Web pages
these create connections between information references within a document or between documents
word processors
allow you to create, edit, save, and print text-based documents including flyers, letters, and reports
word wrap
automatically moves the insertion point to the next line
quickly locates or finds characters, words, or phrases
replaces the located text with new text
programs that are used to organize, analyze, and graph numeric data
spreadsheets or sheets, that are rectangular grids of rows and columns
identified by numbers
identified by letters
hold data and are formed by the intersection of rows and columns
a series of cells
text entries
aka numeric entries, entered cells
instructions for calculations
prewritten formulas
what-if analysis
the result of changing one or more values and observing the effect on related cells in the spreadsheet
analytical graphs
used to help visualize data in spreadsheets
database management systems
used to create and use databases
relational database
organizes data into related tables
organized by records
rows in a database
columns in a database
find specific information by querying the database
present selected information on a computer monitor or printed in a report
arrange records in alphabetical order
built-in math formulas to manipulate and analyze data
program control languages
SQL (Structured Query Language) are programing languages for advanced users to create sophisticated database applications
presentation graphics
combine a variety of visual objects to create attractive, interesting presentations
layout files
these files present sample text for many different types of presentations
these design templates provide selected combinations of text layouts, bullet styles, background colors, patterns, boreders, and other enhancements
include special visual and sound effects including moving graphics and transitions between topics
software suite
a collection of individual application packages sold together
OLE (object linking abd embedding)
allows sharing of information between applications
source files
these files provide the objects that can be linked or embedded
destination files
these files receive the objects from other sources
object linking
linked objects are automatically updated whenever a change occurs in the source file
object embedding
embedded objects become part of the destination file and can be run from the destination file
integrated package
a single program providing the functionality of a word processor, spreadsheet, database manager, and more. Less expensive, but not as powerful compared to suites
system software
consists of operating systems, untilities, device drivers, and language translators
operating systems
perform three basic fucntions: manage resources, provide, user interface, and run applications
operating systems (3 basic categories)
embedded, network, stand-alone
the most widely used operating system
Mac OS
Aqua - an intuitive user interface
Dock - a flexible tool for organizing files
Sherlock - a search tool
UNIX system
Linux a free operating system
specialized programs designed to make computing easier
ex. troubleshooting, antivirus, uninstall, backup, and file compression
utility suites
combine several programs into one package
ex. norton utilities, norton antivirus, norton, cleansweep, extra features
device drivers
specialized programs that work with the operating system to allow communication between hardware devices and the rest of the computer system
consists of eight bits
silicon chip, semiconductor, integrated circut
chips mounted onto carrier packages
control units
executes programs by directing electronic signals between memory, the arithmetic-logic unit, and input/output devices
RAM (random access memory)
volatile storage, because their contents are lost if power is disrupted
flash ram
a special type of Ram that does not lose it's content if power is disrupted
cache memory (RAM cache)
high-speed holding area for frequently used data and information
ROM (read only memory)
firmware, nonvolative storage and control essential system opperations
system clock
clock speed and clock rate is measured in gigahertz
bus lines
data buses, buses, provide data pathways that connect various system components
connecting sockets on the outside of the system unit, used to connect keyboards, mouse, monitors, modems, printers, and video cameras
input devices
translate words, images, and actions that people understand into a form a computer can process
digitizing devices
convert sketch or a figure into a form that cna be processed by a computer
cathode ray tubes
placed on a system unit or directly on a desk, low cost, high resolution
flat pannel monitors
used for portable computers and desktops, aka liquid crsytal display monitors
soft copy
images displayed on a monitor
hard copy
information output on paper
ink-jet printer
sprays small droplets of ink onto paper, most common photo printer
laster printer
uses a laser beam to produce images
thermal printers
uses heat elements to produce images on heat-sensative papaer