Computer Hardware Basic # 3
Transcript of Computer Hardware Basic # 3
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The physical devices that make
up the computer are called
hardware
computers hardware consists
of interconnected electronic
devices
Computer hardware illustration
Next slide
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IntroductiontoComputer
HardwareBasics
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Tape DriveMass Data Backup5 1/4 and 3 1/2FloppyRemovableMedia
CD-ROM/DVD-ROMCDRW/DVD-R
Hard Drive Light
On means working
Blinking means busy
Power Light
On/Green
Amber/Standby
USB Ports
For Media readers/Cameras/Scanners
Build in Media readers (CF, SD cards)
Air Vents
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A
B
C
D
E F
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CPUPCI Slots
RAM
Hard Disc
Power
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Two major venders
X2, X3, X4, DualCore, Quad Core ?
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Older Computers P4s DDR
Current Computers DDR2
New Computers (2009-2010) DDR3
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Internal External
Runs the Computer OSGreat for storage
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ATI
&Nvidia
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DVI (
igital Visual Interface
)
VGA
HDMI
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VS.VS.
CRT = Faster refresh rate, better viewing angle, betterbrightness/contrast, more resolutions, cheaper (Heavy, Bulky,use more power, radiation)
LCD = Lighter, Use less power, Digital Input (poor viewing angle,Fixed resolution, more $$$) 16x9 ratio or 16x10 ratio ------ (19Minimum)
LCD TV = Bigger screen, cheaper than normal LCD of same size,
Wide Screen, Digital input, Save more space(lower resolutionfor computing)
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Impact Printers (dot-matrix)
Inkjet
(all in one function - Scan, Copy,
Print)
Photo quality
Prints photos 4x6 to 8x10
Cheap Printer, expensive ink (new
printer every time)
Refilling kits from 3rd
party / Local Stores
Laser
Mostly Black/White
Overall best value for text printing
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USB Cable to hook up to Computer
Networked is better if you have 2 or more
computers
Use Ink Refill stations
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Touchpad = Mouse
Left Click / RightClick
Left Click / Right Click
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Windows XP, Windows Vista
Plug in the new the Keyboard, Mice (wired
or wireless)
Turn on the Computer
Wait for Windows to Boot
Wait for Windows to Install Drivers (1-2
minutes)
Start using the Keyboard Mice
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Recognize the main
components and
understand their
basic function.
Understand that there
are different types of
components.
Get familiar with how
the components are
installed.
Understand common
hardware problems.
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Protect yourself
Power off
One hand rule
Dont open a
monitor
Protect the
equipment
Power off
Grounding strap
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Motherboard overview
Hard drive/CD/DVD
NIC/expansion cards
Memory
Put It Back Together
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Be able to use basic operating system
utilities to monitor system functions and
identify software related problems.
Be able to install a desktop operating
system and perform basic configuration
functions.
Be able to obtain and install software
updates and patches.
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Whats the first step in
troubleshooting?
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Isolate the
problem
Document
Application
Operating system
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Try opening a backup copy
Try opening on another machine
Try opening with a different version of the
program
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Try another document
Uninstall any new items
Apply vendor updates
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Try a different application
Check disk drive space
Use scan disk and defrag for maintenance
Try a Windows troubleshooting wizard
Apply vendor updates
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Install Windows
Work with drivers as required
Find Windows update
Download and install Adobe Acrobat
Uninstall Adobe Acrobat
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Be able to properly
connect a printer.
Be able to install
print driver software.
Be able to access and
understand the
windows tools used
for print
troubleshooting.
Be able to perform
basic troubleshooting
of network printing.
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Install a new printer
Get correct cable and driver
Troubleshoot printing
Start at printer and use process of
elimination.
Network printing
Things to look for
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Identify and solve
basic networking
problems.
Differentiate between
problems with a
single machine and
the entire network.
Identify the reasons
for common internet
error messages.
Find and use
windows utilities
helpful in identifying
network problems.
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Internet Problems
Bad URL
Server down
Missing or old plug-in
Network Problems
Cable
Software/client
Server