1. Info Tech for Medical Profession
Unit 4- Maintaining & Protecting Hardware

2. Objectives 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. Why Keep the PC Healthy? You want to protect your investment
How much do computers cost?
Easy to maintain
Keep it physically clean
Protecting it from bad software
Protect/Backup your files

4. Dirty Screen What makes the screen dirty? LCD/LED screens (Non-glass)
NEVER spray liquid or Windex!
Ruins the anti-glare coating
Can leak into monitor
NO Paper towels or tissues- they scratch.
NO bath towels- they leave lint.

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

6. Activity
Let’s clean the monitors in class

7. Dirty Keyboard What makes the keyboard dirty?
Could cause it not to work

8. Cleaning the Keyboard Unplug, turn upside down & shake over trash can
How to Clean a Keyboard
Cleaning the Keyboard
Unplug, turn upside down & shake over trash can
Use compressed air
Removes dust
Do over trash can
Use wipes
Clean dirt & germs, disinfects
NEVER use a vacuum to clean it when it is plugged in.
Post-it note can be used to clean grime on sides of keys.

9. Dirty Mouse Can get sticky & dusty on bottom Sticky/dirty on top
Causes erratic movement
Sticky/dirty on top

10. Cleaning the Mouse
Unplug mouse first
Use wipes

11. Activity
Let’s clean the keyboard & mouse

12. Review- 3Q What should you use to clean a monitor?
LCD wipes
What should you NOT use to clean a monitor?
Windex/glass cleaner
What can you use to quickly remove dust from a keyboard?
Compressed air

13. Dirty Computer Case Dust & dirt build-up clogs fans
Causes it to overheat & shut down
Could damage internal components, like the CPU.

14. Cleaning the Case Vacuum outside only Use compressed air
Unplug PC first!
Use compressed air
DON’T blow dust inside PC!
Wipes to clean surface or damp cloth

15. Cleaning Your Devices Keep the laptop, tablet & phone clean
Cleaning Your Laptop
Keep the laptop, tablet & phone clean
Wipe screen with screen cleaner
Use compressed air to clean dirt and debris from ports
Wipe case with cleaner.
Use keyboard disinfectant wipes on keyboard.

16. Laptop Cooling Take in air on bottom, expel heat out back
If you block intake, it gets hot!
Cooling Pad/Stand
Keeps cool air going in
Prevents overheating

17. Laptop/Tablet Transportation
Padded Bags or Backpacks
Protect and cushion when carrying
Sleeves
Look nice but offer no drop protection

18. Review- 4Q
Before you vacuum any dust from the outside of a PC, what should you do?
Power down & unplug the PC
When dust clogs fans, what could happen?
PC overheats
The outside of a PC case can be wiped with what two things?
Cleaning wipes or damp cloth
What can be put under a laptop to keep it cool?
Cooling pad

19. Protect from Theft Kensington Lock Secure physical devices
Businesses or Personal use

20. Organizing Under Desk
Organize cables under desk with Velcro cable ties
Keep PC off ground/rug

21. Project
Shop for maintenance accessories

22. Power Strip
Allows many plugs into one
Not recommended!

23. Protect from Electrical Damage
Surge or Spike
Too much electricity
Lightning strike or power fluctuation
Power Outages
No electricity

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

25. Surge Suppressor AKA Surge Protector What to look for?
Better than Power Strip
Diverts excess electricity
What to look for?
# of outlets
Joule rating
More joules better protection
Cord length
$$ protection warranty
Noise- unwanted/extra electricity on the lines. Sources include microwave, vacuum cleaner, wireless products, etc. Noise interferes with normal electrical signals.

26. Connected equipment warranty $$
Surge Suppressor
# of Outlets
Length of cord
# of Joules
Connected equipment warranty $$

27. Battery Backup Uninterruptable Power Supply (UPS)
Battery backup PLUS surge protection
Will power equip until you can save & shutdown
7-20 min.

28. Project 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

29. Passwords

30. Create Strong Passwords
Protect yourself & your information
Use strong passwords to prevent hacking
Mistakes:
Mistake 1: Problem: This password uses too much personal information, along with common words that could be found in the dictionary.
Solution: A stronger version of this password would use symbols, uppercase letters, and a more random order. And rather than using family names, we could combine a character from a movie with a type of food. For example, Chewbacca and pizza could become chEwbAccAp!ZZa.
Mistake 2: Problem: At only five characters, this password is way too short. It also includes part of her address, which is publicly available information.
Solution: A stronger version of this password would be much longer, ideally more than 10 characters. We could also substitute a nearby street name instead of her current address. For example, Pemberly Ave could become p3MberLY%Av.
Mistake 3: Problem: While patterns like this are easy to remember, they're also some of the first things a hacker might guess when attempting to access your account.
Solution: Remember that random passwords are much stronger than simple patterns. If you're having trouble creating a new password, try using a password generator instead. Here's an example of a generated password: #eV$pIg&qf.
Mistake 4: Problem: There's nothing really wrong with this password, but remember that you should never use the same password with different accounts. Solution: Create a unique password for each of your online accounts.
Instead of writing your passwords on paper where someone might find them, you can use a password manager to store them securely online. Password managers can remember and enter your password on different websites, which means you won't have to remember longer passwords. Examples of password managers include LastPass, 1Password, and Google Chrome's password manager.
#5is NOT a mistake: This is a great example of a strong password. It's strong, long, and difficult for someone else to guess. It uses more than 10 characters with letters (both uppercase and lowercase), numbers, and symbols, and includes no obvious personal information or common words. This password might even be a bit too complicated to remember without a password manager, which underscores why they're so helpful when creating a strong password.

31. Password Tips

32. Passwords Most common passwords are… password 123456
Top 25 Worst
Rank
Password 1
123456 2
password 3 4
qwerty 5
12345 6 7
football 8
1234 9 10
baseball 11
welcome 12
Passwords of 2015
Rank
Password 13
abc123 14
111111 15
1qaz2wsx 16
dragon 17
master 18
monkey 19
letmein 20
login 21
princess 22
qwertyuiop 23
solo 24
passw0rd 25
starwars
Most common passwords are…
password
123456
Strong Password Checker from Kaspersky
Strong Password Generator

33. Review- 3Q
What is a surge protector’s measurement of electricity rating?
Joules
What does UPS stand for?
Uninterruptible power supply
What are the 2 most common passwords?
& password

34. Virus Protection Use anti-virus software Enable auto-update
Prevents virus install & helps remove it
Enable auto-update
New virus’ made everyday
Be careful what you download
AV might not catch them all
Free & Paid services
Name some AV software
Comcast/Xfinity gives you Norton for FREE.
Windows comes with Defender.
Should have on a Mac. You can get it for your phone too.

35. Protect Your Data What files are important to you?
Your music, photos & docs
Backup to external HD, DVD, or Cloud

36. Backup Your Data
The files can be saved on a flash drive, CD, DVD, or a hard drive.

37. Common Problems (6) Printer Problem things to try:
Is the printer turned on?
Is the USB printer cable plugged in?
Is it out of ink or toner?
Is it out of paper?
Did you select the correct printer to print it to?
Power button:
Is the power cord plugged into the computer & the outlet?
If it is plugged into an outlet, does the outlet work? Plug something like a lamp in & try it.
If it is plugged into a surge protector, is it turned on? Plug a lamp in it to test it.
If it’s a laptop, is the battery dead?
Application is frozen:
Ctrl+Alt+Del, select the program in the list & click end task
On a MAC, Command+Option+Esc, force quit
Restart the computer
Mouse or Keyboard stopped working:
Are they plugged in?
If wireless, are batteries dead?
Check to see if wireless receiver is plugged in? Unplug & plug it back it.
Sound isn’t working:
Check the volume on speaker & on computer
Is it plugged in or plugged into correct port?
If your speakers plug into AC power, make sure it is in & works.
Connect working headphones to make sure it is not the speaker.
Screen is blank:
Is the computer asleep? Shake mouse or touch keyboard to wake it up.
Is it plugged in?
Is it turned on?
Is the computer turned on?
Is the monitor cable plugged in?

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

39. Hardware Issues Display problems Loss of network Incompatible device
Check power
Check video cable
Loss of network
Loose cable
Wireless down
Incompatible device
Check if it’s plugged in

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

41. Care for Removable Media
Avoid extreme temperatures
Don’t touch media surface
Hold optical disks at edges
Keep disks in case when moving them

42. Useful Life Personal PC: 3-5 years Special Recycle Donate
Check with town/county
Donate
Also recycle ink/toner

43. Info Tech for Medical Profession
Unit 4- Maintaining & Protecting Hardware