What is a computer
Download
1 / 14

What is a Computer? - PowerPoint PPT Presentation


  • 52 Views
  • Uploaded on

What is a Computer?. What is a Computer?. Electronic device Operates under instructions stored in its memory Accepts data Processes data Produces results Stores results for future use. Data versus Information. Data (Input)

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' What is a Computer?' - lihua


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

What is a computer1
What is a Computer?

  • Electronic device

    • Operates under instructions stored in its memory

    • Accepts data

    • Processes data

    • Produces results

    • Stores results for future use


Data versus information
Data versus Information

  • Data (Input)

    • Unprocessed collection of text, numbers, symbols, images, audio, video

  • Information (Output)

    • Conveys meaning that is useful


Components of a computer
Components of a Computer

  • Input devices

  • Output devices

  • System unit

  • Storage devices

  • Communication devices


Advantages
Advantages

  • Speed

  • Reliability

  • Consistency

  • Storage

  • Communications


Disadvantages
Disadvantages

  • Health risks

  • Violation of privacy

  • Public safety

  • Impact on labor force

  • Impact on environment


Network
Network

  • What is ….

    • Collection of computers and devices connected together

  • Advantages of networks

    • Allows sharing of resources such as hardware, software, data, and info


Internet
Internet

  • What is…..

    • Collection of networks

  • What do you use the Internet for?


What is software
What is Software?

  • Program

    • Series of related instructions

    • Tells computer what tasks to perform and how to perform them

  • Graphical User Interface (gooey)

    • Used to interface with software using text, graphics, and visual images (icons)


Two types of software
Two Types of Software

  • System

    • Control or maintain operations of computer

    • Serves as interface between user and application software

    • Two types– operating & utility

      • Operating – coordinates activities among hardware devices

      • Utility – maintenance type tasks i.e. managing printers


Two types of software1
Two Types of Software

  • Application

    • Programs designed to make users more productive and assist with personal tasks


Categories of computers
Categories of Computers

  • Personal computers

  • Mobile computers and mobile devices

  • Game consoles

  • Servers

  • Mainframes

  • Supercomputers

  • Embedded computers


Categories of users
Categories of Users

  • Home

  • Small Office/Home Office

  • Mobile

  • Power

  • Enterprise


Computer applications in society
Computer Applications in Society

  • Education

  • Finance

  • Government

  • Health care

  • Science

  • Publishing

  • Travel

  • Manufacturing


ad