notes ch 5

paperless publishing
Pdf- portable document format, lets all document types be edited, moved and etc. on any system
copyright protection: posting on the web are available for anyone to read or copy and claim as their own
ebook: a handheld device that contains all kinds of written material like newspapers and books
epaper: a flexible, portable, paper-like material that displays black and white text and images on its surface, can erase itself and show new material as readers "turn" the page
spreadsheet software enables to the user to control numbers, spreadsheet programs siplify calulations
worksheet: spreadsheet doc that appears on screen with grids of numbered rows and lettered columns
each box that is an intersection of row and column is called a cell
values: raw material spreadsheet software uses to perfurm calculations
functions are set calculations
macros are custom-designed procedure programs that automates tasks in application
auto recalculation changes all data related to a change
templates:ready to use worksheet layouts
automatic links: when something changes, all linked worksheets update automatically
pie charts: show relative proportions of parts to the whole
line charts: show trends over time
bar charts: like line graphs, better for when data falls into more categoreies
scatter charts: used to discover a relationship between two variables
guidelines to prevent errors:
-plan worksheet before you enter values and fomulas
- make assumptions as accurate as possible
- double-check everything
-make formula readavble
- take advantage of programmed functions and templates

most businesses use accounting and financial management software instead of spreadsheets
mathematics-processing software: for those whose math needs go beyond capabilities of basic spreadsheets. include interactive wizard
statistics: the science of collecting and analyzing data
statistical sofware helps answer questions
scientific visualization software: uses shape, location in space, color, brightness and motion to help understand relationships that are invisible to us.
modeling: the use of computers to create abstract models of objects, organisms, organizations, and process that can be done with spreadsheets, mathematical applications or standard programming languages
abstraction: a set of concepts and ideas
feedback loop: the user and computer responding to data from each other
Desktop publishing: producing a book magazine or any other publication
source docs:use standard word processors and graphics programs to produce these documents
template: professionally designed empty page
DTP can be used by all kinds of people, both big business and regular people
Computer simulation and visualization
can come in forms such as numerical data or graphical representation
the human body was cut up, photographed, digitized and put together
a computer can be used as a visual lab that simulates physical process without any hands-on, real-world experiments
computer modeling- the use of computers to create abstract models of objects, organisms, organizations and processes
abstraction: a set of concepts and ideas designed to mimic some kind of system