Ergonomics

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Ergonomics

• Computer Applications
• Mrs. Cooper

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Ergonomics

• scientific discipline concerned with interactions
  between humans and workplace
• methods to design workplaces to improve human
  health and performance
• Physical Ergonomics How you sit at the computer,
  tv, and use other technology
• RSI Repetitive Stress Injury

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Prevention

• Use proper posture
• Make workspace adapt to you
• Correct typing technique
• Stretching
• Frequent Breaks

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Posture

• Posture
• Dont sit up perfectly straight
• Dont slouch
• Wrists and Arms
• Wrists straight
• Fingers in a straight line with forearm
• Fingers
• Rest above keys
• Fingers should be bent
• Eyes
• Monitor arms length away
• Rest eyes frequently

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Stretches

• Head from side to side
• Stretch shoulders
• Do all at a slow speed
• Shoulder Shrug
• Thumbs across palms
• Trunk twists
• Frequently stretch, especially when you feel like
  you are tensing up or every 15-20 minutes
• Eyes Focus on something close and then far away
  OR look away from the screen for a while

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Adapting Work Area

• Keyboard at an angle
• Feet flat on floor foot lift or telephone book
• Back curved Adjustable chair or padding attached
  to chair
• Adjust monitor height

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More Prevention

• Dont hold phone with your shoulder
• Limit computer and video game time
• Stretch
• Pace computer time
• Typing fast does not mean pounding the keys

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Computer Basics

• Computer Applications
• Mrs. Cooper

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Basic Parts

• CPU Central Processing Unit/Tower
• How fast it will operate
• Runs hot
• Monitor screen
• Printer
• Mouse
• Left move files, open, close
• Right short cut menu
• Keyboard
• Home Row asdf jkl

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Software vs. Hardware

• Software a program that gives the computer
  instructions
• Microsoft Office Programs such as Word, Excel
• Games
• Hardware devices within or attached to the
  CPU/tower
• Monitor
• Disk Drives
• Printer
• Mouse
• Keyboard

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Operating System

• Most important program
• Communicates between software and hardware
• Example Microsoft XP

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Operating System Parts

• Desktop workspace on the screen where windows
  appear
• Icon small picture that represents a program or
  file
• Taskbar rectangular bar with menus, clocks,
  shows open programs

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Operating System Parts

• Window frames within the desktop, display
  contents of files and folders
• Minimize
• Maximize
• Restore
• Titlebar
• Folder used to organize files and programs
• File a piece of work created by using a program

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Operating System Basics

• Recycle Bin where files go when they are
  deleted, there they can be permanently deleted
• Start Menu displays programs, folders and files
• Cascading Menu sub-menus
• Dialog Box User asked by the computer what do
  you want me to do?

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Desktop Properties

• Background pattern/color/picture on the desktop
• Screensaver
• Originally used to rest the monitor and save
  energy
• Now just a display when computer sits idle
• Appearance can change colors and font of
  taskbar, icons, windows

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Terms

• Short Cut
• icon on desktop or menu to get to a program
  quickly
• To create it Right mouse click and choose
• Show on desktop
• Create a shortcut
• Text writing/words
• Graphic pictures, clipart, videos

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Microsoft Office Programs

• Excel spreadsheets to organize data
• PowerPoint presentation program
• Publisher create posters, signs and other
  publications
• Word word processing program

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Creating Folders

• Step 1 Watch
• Step 2 Try it
• Click on New
• Click Folder
• Name Folder with your name first and last name

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Computer Parts

• Motherboard
• Largest circuit board
• Expansion Cards Smaller boards plug into it and
  have a specific purpose, for drives or ports
• Types Sound Card, Video Card, Modem
• Power Supply converts electricity to current
  that works in computer

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Vocab

• BIOS Basic Input Output System
• reminds the computer what parts it has and what
  to do
• tells computer to turn on and off
• RAM Random Access Memory
• reads and write information if you tell it to
  save
• ROM Read Only Memory
• only reads information
• You cannot change it
• Ports places on outside to plug in hardware

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More Vocab

• Disk Drive reads information off of storage
  disks
• Hard Drive
• hold data in the computer
• are not meant to be removed

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Memory Storage

• Bit thousands of compartments that the memory
  chips in the computer are divided up into
• Byte eight bits grouped together

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Storage Size

• KB kilobyte about 1,000 bytes
• MB megabyte about 1,000,000 bytes
• GB gigabyte about 1,000,000,000 bytes

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Storage Devices

• Floppy holds up to 1.44 MB
• CD Holds up to 650 MB
• Flash/Jump Drive can hold from 256 MB to 8 GB (
  and growing)