Transcript Info Tech Unit 4- Maintaining and Protecting Hardware

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
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
■ Use compressed air
– Removes dust
– Do over trash can
■ Use wipes
– Clean dirt & germs,
disinfects
How to
Clean a
Keyboard
Dirty Mouse
■ Can get sticky & dusty on bottom
– 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
Cleaning the Case
■ Vacuum outside only
– Unplug PC first!
■ Use compressed air
– DON’T blow dust
inside PC!
■ Wipes to clean
surface or damp
cloth
Cleaning Your Devices
Cleaning
Your
Laptop
■ Keep the laptop, tablet & phone clean
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
– Better than Power Strip
– Diverts excess
electricity
■ What to look for?
– # of outlets
– Joule rating
■ More joules better
protection
– Cord length
– $$ protection warranty
Surge Suppressor
# of Outlets
Length of cord
# of Joules
Connected equipment
warranty $$
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:
Password Tips
Passwords
■ Most common
passwords are…
– password
– 123456
Strong Password
Checker from
Kaspersky
Strong Password
Generator
Top 25 Worst
Passwords of 2015
Rank
Password
Rank
Password
1
123456
13
abc123
2
password
14
111111
3
12345678
15
1qaz2wsx
4
qwerty
16
dragon
5
12345
17
master
6
123456789
18
monkey
7
football
19
letmein
8
1234
20
login
9
1234567
21
princess
10
baseball
22
qwertyuiop
11
welcome
23
solo
12
123456789
0
24
passw0rd
25
starwars
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
– 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
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)
Hardware Issues
■ 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
■ Display problems
– 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
– Check with town/county
■ Donate
INFO TECH FOR
MEDICAL
PROFESSION
Unit 4- Maintaining & Protecting Hardware