1. Unit 4- Maintaining & Protecting Hardware

2.  Identify the importance of keeping a computer clean.  Explain what is needed to clean a PC.  Identify the importance of protecting computer hardware from theft and damage.  Make a secure password.  Protect a computer against viruses.  Explain how to backup data.  Identify how to protect computer hardware from power loss.  Identify common problems associated with computer hardware.  Identify routine maintenance tasks.

3.  How much do computers cost?  You want to protect your investment  Easy to maintain ◦ Keep it physically clean ◦ Protecting it from bad software ◦ Protect/Backup your files

4.  What makes the screen dirty?  LCD/LED screens (Non-glass) ◦ NEVER spray liquid or Windex!  Ruins the anti-glare coating  Can leak into monitor

5.  Pre-moistened Wipes  Spray & Cloth ◦ Spray liquid onto microfiber cloth  Use on LCD/LED, cell phone screen, Tablets, photo frames, etc.

6.  What makes the keyboard dirty?  Could cause it not to work

7.  Unplug, turn upside down & shake  Use compressed air  Use wipes  Spill? ◦ Disconnect, turn upside down to drain ◦ Sticky?  Hold on side & rinse  Drain for 2 days

8.  Can get sticky & dusty on bottom ◦ Causes erratic movement  Sticky/dirty on top

9.  Use wipes

11.  Dust & dirt build-up  Clogged fans

12.  Use compressed air ◦ DON’T blow dust inside PC! ◦ Dust keeps PC hot  Vacuum outside only  Wipes to clean surface

13.  Keep the expensive laptop clean!

14.  Take in air on bottom, expel heat out back  Cooling Stand ◦ Keeps cool air going in ◦ Prevents overheating  Padded Bags ◦ Protect when carrying

16.  Kensington Lock  Secure physical devices  Businesses or Personal use

17.  Organizing cables under desk  Velcro wire-ties

18.  Shop for maintenance accessories

19.  Allows many plugs into one  Not recommended!

20.  Surge or Spike ◦ Too much electricity ◦ Lightning strike or power fluctuation  Power Outages ◦ No electricity

21.  An increase in voltage significantly above the designated level  Surge Protector diverts extra voltage like a valve

22.  AKA Surge Protector ◦ Better than Power Strip  What to look for? ◦ # of outlets ◦ Joule rating  More joules better protection ◦ Cord length ◦ Noise filter ◦ $$ protection warranty

23. # of Outlets Length of cord # of Joules Connected equipment warranty $$

24.  Uninterruptable Power Supply  Battery backup PLUS surge protection  Will power equip until you can save & shutdown ◦ 10-20 min.

25.  Find a single outlet surge protector for your laptop  Find a 6-8 outlet surge protector for computers  Find a surge/UPS strip with at least 10 minutes of backup time

26.  Don’t use easy, common words  Mistakes:

27.  Most common password is…password ◦ Also 123456  Tips & Advice: Top 25 worst passwords of 2011 Strong Password Checker from Microsoft

28.  Prevents virus install & helps remove it  Enable auto-update ◦ New virus’ made everyday  Be careful what you download ◦ AV might not catch them all  Name some AV software

29.  Office Max ◦ McAfee Antivirus Plus 2013 1 & 3-user ◦ Kaspersky Internet Security 3-user  Staples ◦ Norton Internet Security 2013 3-user ◦ McAfee Total Protection 2013  Best Buy ◦ Kaspersky Internet Security 3-user  Walmart ◦ McAfee Antivirus Plus 2013 3-user ◦ Norton Antivirus 2013 3-user

30.  What files are important to you?  Data is very valuable  Backup data ◦ External drive ◦ Online

31.  The files can be saved on a flash drive, CD, DVD, or a hard drive. Win 7Mac

34.  Crashed HD ◦ Overheat, dropped, shaken, wear out  Damaged media ◦ Scratched CD/DVD ◦ Dusty flash drive, banged around  Printer Problems ◦ Paper jams ◦ Low ink or toner

35.  Display problems ◦ Check power ◦ Check video cable  Loss of network ◦ Loose cable ◦ Wireless down  Incompatible device ◦ Check if it’s plugged in

36.  Visual Inspection ◦ Check cables  Plugged in  Good condition  Inside computer too

37.  Avoid extreme temperatures  Don’t touch media surface  Hold optical disks at edges  Keep disks in case when moving them

38.  Personal PC: 3-5 years  Special Recycle ◦ Check with town/county  Donate

40. Unit 4- Maintaining & Protecting Hardware