Transcript Introduction to Computers

Computer
Software
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Software
The instructions that allow the user to
communicate with the computer; also called
programs
 Three categories:
 System software
 Application software
 Communications software
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System software
 Software responsible for the general operation of a
computer system, including the operation of
hardware, running application software, and file
management
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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
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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
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Presentation
 An application software designed
to create a visual display of
information; can include text,
graphics, audio and video
 Microsoft PowerPoint, Apple
Keynote, Prezi
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Database
 An application software
designed to collect and
organize data for easy retrieval
and analysis
 Microsoft Access, FileMaker
Pro, Oracle
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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
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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.)
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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:
.docx – Microsoft Word document
.pptx – Microsoft PowerPoint presentation
.xlsx – Microsoft Excel spreadsheet
.txt – a plain text file; can be read with most
word processing programs
 .jpg – graphic image
 .pdf – requires Adobe Reader
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