unit 4- maintaining & protecting hardware. identify the importance of keeping a computer clean....
TRANSCRIPT
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Integrated Technology
Unit 4- Maintaining & Protecting Hardware
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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.
Objectives
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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
Why Keep the PC Healthy?
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What makes the screen dirty?
LCD/LED screens (Non-glass)◦ NEVER spray liquid or
Windex! Ruins the anti-glare coating Can leak into monitor
Dirty Screen
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Pre-moistened Wipes
Spray & Cloth◦ Spray liquid onto
microfiber cloth
Use on LCD/LED, cell phone screen, Tablets, photo frames, etc.
Cleaning the Screen
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What makes the keyboard dirty?
Could cause it not to work
Dirty Keyboard
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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
Cleaning the Keyboard
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Can get sticky & dusty on bottom◦ Causes erratic movement
Sticky/dirty on top
Dirty Mouse
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Review
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Dust & dirt build-up Clogged fans
Dirty Computer Case
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Use compressed air◦ DON’T blow dust inside PC!◦ Dust keeps PC hot
Vacuum outside only
Wipes to clean surface
Cleaning the Case
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Take in air on bottom, expel heat out back
Cooling Stand◦ Keeps cool air going in◦ Prevents overheating
Padded Bags◦ Protect when carrying
Laptop Care
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Review
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Protect from Theft Kensington Lock Secure physical devices Businesses or Personal use
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Organizing Cables Organizing cables under desk Velcro wire-ties
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Shop for maintenance accessories
Project
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Allows many plugs into one Not recommended!
Power Strip
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Surge or Spike◦ Too much electricity◦ Lightning strike or power
fluctuation
Power Outages◦ No electricity
Protect from Electrical Damage
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What’s a surge? An increase in voltage significantly above
the designated level
Surge Protector diverts extra voltage like a valve
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AKA Surge Protector◦ Better than Power Strip
What to look for?◦ # of outlets◦ Joule rating
More joules better protection
◦ Cord length◦ Noise filter◦ $$ protection warranty
Surge Suppressor
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Surge Protector Features
# of Outlets
Length of cord
# of Joules
Connected equipment warranty $$
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UPS Uninterruptable Power
Supply
Battery backup PLUS surge protection
Will power equip until you can save & shutdown◦ 10-20 min.
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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
Project
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Don’t use easy, common words Mistakes:
Passwords
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Most common password is…password◦ Also 123456
Tips & Advice:
Password Tips
Top 25 worst passwords of
2011
Strong Password
Checker from Microsoft
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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
Anti-virus Protection
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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
Anti-virus Software Project
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What files are important to you?
Data is very valuable
Backup data◦ External drive◦ Online
Protect Your Data
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The files can be saved on a flash drive, CD, DVD, or a hard drive.
Backup Your Data
Win 7 Mac
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Review
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Common Problems
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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
Hardware Issues
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Display problems◦ Check power◦ Check video cable
Loss of network◦ Loose cable◦ Wireless down
Incompatible device◦ Check if it’s plugged in
Hardware Issues
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Routine Maintenance Visual Inspection
◦ Check cables Plugged in Good condition Inside computer too
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Care for Removable Media
Avoid extreme temperatures
Don’t touch media surface
Hold optical disks at edges
Keep disks in case when moving them
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Useful Life Personal PC: 3-5 years Special Recycle
◦ Check with town/county Donate
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Review
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Integrated Technology
Unit 4- Maintaining & Protecting Hardware