Transcript Introduction to Computers

Computer
Software
1
Software
The instructions that allow the user to
communicate with the computer; also called
programs
 Three categories:
 System software
 Application software
 Communications software
2
System software
 Software responsible for the general operation of a
computer system, including the operation of
hardware, running application software, and file
management
3
Operating system software
 Operating system (OS)--system software that acts
as a "go-between", allowing computer hardware
and other software to communicate with each other
 Microsoft Windows
 Mac OS
 Linux
 One component of an OS is file management: the
ability to create, edit, view, print, rename, copy or
delete files and folders
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System software - utility
 Utility software is a type of system software
that runs system checks and makes sure
everything is working properly;
 One type of utility software is anti-virus
software, which checks for viruses (programs
designed to disrupt or destroy the normal
operation of a computer
 McAfee, Norton, Avast, AVG
5
Application software
Programs that allow the user to perform specific
tasks; also known as productivity software
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 Word Processing
 Digital Imaging
 Spreadsheet
 Web Design
 Presentation
 Video/Audio Production
 Database
 Gaming
 Desktop Publishing
 Podcasting
 Painting/Drawing
 Accounting
Word Processing
 A software application that is
designed to create, edit, format,
print and save text-based
documents, such as letters,
reports, and memos
 Microsoft Word, Apple Pages
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Spreadsheet
 A software application that stores
data in a grid of horizontal rows
and vertical columns. The
software is designed to analyze
data using formulas and
calculations.
 Microsoft Excel, Apple Numbers
8
Presentation
 An application software designed
to create a visual display of
information; can include text,
graphics, audio and video
 Microsoft PowerPoint, Apple
Keynote, Prezi
9
Database
 An application software
designed to collect and
organize data for easy retrieval
and analysis
 Microsoft Access, FileMaker
Pro, Oracle
10
Desktop Publishing
 An application software that is
designed to combine text and
graphics to create professional
print-ready publications
 Adobe InDesign, Corel Draw,
Microsoft Publisher
11
Communication software
 Programs that make it possible for a
computer to transmit and receive
information to and from other computers.
 Web Browsers
 Internet Explorer, Firefox, Safari, Google Chrome
 Email
 Web-based (Yahoo, Gmail, Live, Hotmail, etc.)
 Email clients (Outlook, Groupwise, etc.)
12
File types
 Every file saved on a computer will have an
extension at the end of a file name—typically
three characters.
 The extension may indicate which
application was used to create a document or
what type of application is needed to open
the document
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File types - continued
 Examples:
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.docx
.pptx
.xlsx
.txt
.rtf
.jpg
.pdf
Microsoft Word document
Microsoft PowerPoint presentation
Microsoft Excel spreadsheet
a plain text file (generic)
rich text format (generic)
graphic image
requires Adobe Reader
File types - continued
 Examples:
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.mp3
.wmv
.wma
.htm
.mov
.wps
.zip
compressed audio file
windows media video file format
windows media audio file format
hypertext markup file
Quicktime movie
Microsoft Works word processing doc
compressed file format