lesson 1b l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Introduction to Computers PowerPoint Presentation
Download Presentation
Introduction to Computers

Loading in 2 Seconds...

play fullscreen
1 / 16

Introduction to Computers - PowerPoint PPT Presentation


  • 323 Views
  • Uploaded on

Lesson 1B Introduction to Computers Keyboard Primary input device for entering text and numbers Standard Keyboards Have Five Groups of Keys Alphanumeric keys Modifier keys Numeric keypad Function keys Cursor-movement keys Click to Enlarge Mouse

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 'Introduction to Computers' - niveditha


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
keyboard
Keyboard
  • Primary input device for entering text and numbers
standard keyboards have five groups of keys
Standard Keyboards Have Five Groups of Keys
  • Alphanumeric keys
  • Modifier keys
  • Numeric keypad
  • Function keys
  • Cursor-movement keys

Click to Enlarge

mouse
Mouse
  • An input device that rolls around on a flat surface and controls the pointer
pointer
Pointer
  • Also called the mouse pointer
  • An on-screen object for selecting text; accessing menus; and interacting with programs, files, or data
other pointing devices
Other Pointing Devices
  • Trackball
  • Trackpad, also called a touchpad
  • Joystick, also called an integrated pointing device, 3-D point stick, or TrackPoint
alternative input devices
Alternative Input Devices
  • Devices for the hand
  • Optical devices
  • Audiovisual devices
monitors
Monitors
  • Cathode ray tube (CRT)
  • Flat-panel. Most common flat-panel is the liquid crystal display (LCD) monitor
two main lcd categories
Two Main LCD Categories
  • Passive matrix LCD
  • Active matrix LCD
four things to consider when monitor shopping
Four Things to Consider When Monitor Shopping
  • Size
  • Resolution
  • Refresh rate
  • Dot pitch
video controller
Video Controller
  • An intermediary device between the CPU and the monitor
sound card
Sound Card
  • Translates digital sounds into the electric current that is sent to the speakers
printers
Printers
  • Impact
  • Nonimpact
four things to consider when printer shopping
Four Things to Consider When Printer Shopping
  • Image quality, measured in dots per inch (dpi)
  • Speed, measured in pages per minute (ppm)
  • Initial cost
  • Cost of operation
examples of printers
Examples of Printers
  • Dot matrix
  • Ink jet
  • Laser
lesson 1b16
Lesson 1B
  • Interacting With a Computer