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

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.

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

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.

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

Activity Let’s clean the monitors in class

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

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.

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

Cleaning the Mouse Unplug mouse first Use wipes

Activity Let’s clean the keyboard & mouse

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

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

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

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.

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

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

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

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

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

Project Shop for maintenance accessories

Power Strip Allows many plugs into one Not recommended!

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

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

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.

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

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

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

Passwords

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.

Password Tips

Passwords Most common passwords are… password 123456 Top 25 Worst Rank Password 1 123456 2 password 3 12345678 4 qwerty 5 12345 6 123456789 7 football 8 1234 9 1234567 10 baseball 11 welcome 12 1234567890 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

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? 123456 & password

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.

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

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

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?

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

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

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

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

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

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