1 / 40

Computing Fundamentals

Computing Fundamentals. Unit 3- Maintaining & Protecting Hardware. Objectives. Identify the importance of protecting computer hardware from theft and damage. Explain how to protect data. Identify environmental factors that can cause damage to computer hardware & media.

lorand
Download Presentation

Computing Fundamentals

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. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Computing Fundamentals Unit 3- Maintaining & Protecting Hardware

  2. Objectives • Identify the importance of protecting computer hardware from theft and damage. • Explain how to protect data. • Identify environmental factors that can cause damage to computer hardware & media. • Identify how to protect computer hardware from power loss. • Identify common problems associated with computer hardware. • Identify routine maintenance tasks. • Define problem solving & identify the steps. • Identify criteria for selecting a computer.

  3. Protect from Theft • Secure physical devices • Businesses or Personal use

  4. Protect From Damage • Cooling Stand • Padded Bags

  5. Protect Your Data • Data is very valuable to businesses • Can occur in theft & when old system are trashed • Encrypt data • On computer • Keeps data private w/out key • Backup data • Daily • On-site & off-site

  6. Backup on Windows 7 • System image and Files • Image= Windows, Programs, Settings & Files • Used if entire drive stops working • The system image must be saved on a hard drive. • Files= just files • The files can be saved on a flash drive, CD, DVD, or a hard drive.

  7. Environmental Protection • Temperature • Not too hot • Humidity • Can cause rust • Water • Magnetic fields • Can erase HD • Static electricity • Can damage components • No rugs

  8. Protect from Damage • Protect Hardware • Power surge or spike • Power outage • Theft • Protect Files • Online backup • CD/DVD backup

  9. An increase in voltage significantly above the designated level Surge Protector diverts extra voltage like a valve What’s a surge?

  10. Surge Suppressor • AKA Surge Protector • Different from Power Strip • Check Joule rating • More joules better protection • Has warranty $$ • Noise Filter

  11. Uninterruptable Power Supply Battery backup & surge Will power equip until you can save & shutdown UPS

  12. Review • What device will keep your laptop from overheating? • Cooling Pad • What security measure can protect transmitted data? • Encryption • What device will allow you time to save & shutdown your PC when the power goes out? • UPS • An increase of voltage above normal levels is called what? • Spike or a surge

  13. Projects • Compare Surge Protectors • How to Backup Data • Surge Homework

  14. Hardware Issues • Crashed HD • Overheat, dropped, shaken, wear out • Damaged media • Scratched CD/DVD • Dusty flash drive, banged around • Printer Problems • Paper jams • Low toner

  15. Hardware Issues • Display problems • Check power • Check video cable • Bad driver • Loss of network • Loose cable • System down • Incompatible device • New device needs driver • Check if it’s plugged in

  16. Routine Maintenance • Organizing cables under desk • Velcro wire-ties

  17. Routine Maintenance • Visual Inspection • Check cables • Plugged in • Good condition • Inside computer too

  18. Routine Maintenance • Dust • Clogs fans • Fans cools parts down • Overheat= shutdown • Compressed Air

  19. Dusty!

  20. Routine Maintenance • Wipes • For monitors • No tissues or towels (lint/scratch) • No glass cleaners

  21. Clean Keyboard & Mouse • Keyboard • Turn upside & shake • Compressed air • Unplug, spray with water, shake out & dry • Mouse • Ball rollers dirty • Wipe bottom of optical

  22. Care for Removable Media • Keep away from electrical fields (TV/monitor) • Avoid extreme temperatures • Don’t touch media surface • Hold optical disks at edges • Keep disks in case when moving them

  23. Review 1

  24. Review 2

  25. Projects • Routine Maintenance Costs • Find Your Specs

  26. Buy or Upgrade • Consider the costs to upgrade versus a new PC • You need 2GB RAM & a bigger hard drive • RAM: $50 • Hard Drive: $100 • New computer: $500

  27. What to consider Who is using it? What will it be used for? List the tasks, software Check requirements Portability or not MAC or PC Brand/Reliability Storage devices Peripherals- how many? Warranty/Support Buying a Computer

  28. Buying a Computer • Support • Company will help you troubleshoot • May charge per call/per hour • Warranty • Written guarantee • If product doesn’t meet specs, manufacturer will repair/replace • Does NOT cover your damage

  29. Upgrading Components • Add RAM • New keyboard, mouse (connections) • Drives/Cards • May require pro to install

  30. Useful Life • Public- 3-5 years • Special Recycle • Check with town/county • Donate

  31. Review

  32. Project • Buying a Computer • Recycling

  33. Troubleshooting Example • On boot, message popup • Unable to load library wxfw.dll. Attempted to load <Key notfound>\wxfw.dll.Error code:126 • Search online for wxfw.dll • Found it was from a Desktop Weather Program • Found program & uninstalled • Reboot & no error

  34. Troubleshooting • What is the problem • Check Basic Solutions • Cables, restart • Look or research for help & support • Talk to a technician • Follow their instructions • Confirm it’s fixed • Document problem/solution

  35. Troubleshooting Scenarios- Check the basics • The entire computer has completely frozen up. I can't click anywhere on the screen. I can't even use the Start button to shut it down. • Ctrl + Alt + Delete • I press print & the printer does not respond at all. • Check the cables; what other solutions?

  36. Review • Which device protects a computer from electrical surges? • Surge suppressor • Which component has an RJ11 jack? • Modem • Which component has a 15 pin female connector? • VGA

  37. Review • A legacy printer would be plugged into which port? • Parallel • When troubleshooting, what would a basic solution be? • Checking the cables • What is the last step in troubleshooting? • Confirm the problem is fixed

  38. Review 1

  39. Review 2

  40. Computing Fundamentals Unit 3- Maintaining & Protecting Hardware

More Related