Chapter 2b- Peripherals & Ports
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Identify & describe input devices
Identify & describe output devices
Connect input & output devices to a
computer
Identify common peripherals
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Allow data IN the
computer
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Standard
Ergonomic
Wireless
Flexible
Virtual
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Mechanical Mouse (OLD)
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Has a rubber ball under
◦ Sensor detect movement
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Must use mouse pad
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Optical
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Laser
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Wireless
◦ LED on bottom
◦ No mouse pad needed
◦ Not good on glass
◦ Laser light on bottom
◦ No mouse pad needed
◦ 20x better sensitivity
◦ USB Receiver
◦ Optical or Laser
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Speak commands into PC & enter text
Software must be installed
Disabled people use
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Which type of mouse’s movement is caused
by a ball?
◦ Mechanical
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You just got a fancy, new glass computer
desk. Which type of mouse should you use?
◦ Laser
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How does a wireless mouse connect to a
computer?
◦ USB adapter
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If a person cannot type, what would you
recommend so they can use a computer?
◦ Voice recognition software/microphone
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Capture still pics &
videos
◦ Point & shoot
◦ DSLR
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Pictures stored to
media card
◦ SD is most common
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Transfer to computer
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Lens/Zoom
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Rechargeable Battery
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Megapixels
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Touch screen
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Wireless Transfer
◦ Digital Zoom
◦ Optical Zoom
◦ NO ALKALINES!
◦ Pixel= single dot
◦ Mega= million
◦ More= better prints
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Make a feature chart for a digital camera
◦ P&S, DSLR, Phone
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Brand, Megapixels, Optical zoom, digital
zoom, screen size, type of memory card,
special features, type of battery
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Data comes OUT of the
computer
Name some
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Video card in case
sends images to
monitor
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CRT
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LCD & LED
◦ Big & bulky
◦ Thin, flat-panel
◦ Less energy
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Connect w/ video
cable & power
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DPI
◦ Dots per inch
◦ More dots= better
quality
◦ 4800 x 1200 (H x V)
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PPM
◦ Pages per minute
◦ Black & Color speeds
 Color is slower
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Dot Matrix
◦ Pins hammer into ink
ribbon
◦ Connected paper with
guide holes
◦ Not good quality
◦ Slow & noisy
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Nozzles spray
liquid ink
Very good quality
Quiet
Fast
Inexpensive
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Laser inside
Toner is a powder
◦ Thousands of pages
from toner
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Very fast printing
B&W or color
◦ 4 color toners (CMYK)
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All-In-One
◦ Print, copy, scan
 Some have fax too
◦ Inkjet & laser
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Photo Printer
◦ Small
◦ 4 x 6 glossy
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Plotter
◦ Large paper
◦ Drafting, posters
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How they connect
◦ Wired- USB or network
◦ Wireless
 Print from any PC, phone,
tablet
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Make money from ink &
toner
◦ Printer: $50
◦ Ink Cost: $6
 Price You Pay: $20-$30
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Get your printer brand & model #
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Look up:
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Inkjet or Laser
All-in-one or not
dpi
ppm (black & color)
Connections
Ink or toner cost
Cost of printer
Cost of a ream of paper
Cost of a 3’ USB cable
Cost of 8 x 10 photo paper
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Which type of printer uses a hammer that
strikes a ribbon?
◦ Dot matrix
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You just received a new toner for your
printer. Which type of printer do you have?
◦ Laser printer
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What is the measurement of a good quality
print?
◦ Dpi
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If you want to know how fast a printer prints,
which feature are you interested in?
◦ ppm
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Purple
◦ Keyboard
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Green
◦ Mouse
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Both 6 pin
female
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VGA
◦ Blue
◦ 15 pin female
◦ Video only, analog
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HDMI
◦ Digital HD video &
audio through one
cable
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Transfer data &
electricity
Plug and play (PnP)
◦ “Hot swappable”
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High speed
◦ 2.0- fast; 10
songs/sec.
◦ 3.0- faster; 100
songs/sec.
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NIC or Ethernet
Connect to
network
Use an Ethernet
Cable or Network
Cable
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Parallel
◦ 25 port female
◦ IEEE 1284
◦ Old Printers
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Serial
◦ 9 port male
◦ RS-232
◦ Old modems & mice
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Parallel
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Serial
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Modem
RJ11
Phone/Line Jacks
56kbps
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Line In
◦ Audio into PC
◦ Record Player to PC
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Line Out
◦ Headphone
◦ Speakers
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Microphone
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S-video (OLD)
◦ Digital video out
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DVI (OLD)
◦ HD video out
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Firewire (OLD)
◦ Replaced by USB
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Bring in Laptop or Take picture of
laptop/desktop ports
◦ Laptop- all sides
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Print in class & label
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View & connect wires to class PC’s
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Practice connecting wires
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Which video port sends HD audio & video
through one cable?
◦ HDMI
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What common port transfers data and can charge
your cell phone?
◦ USB
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How many pins is the old keyboard & mouse
ports?
◦ 6 pin female
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The VGA port is what color and how many pins?
◦ Blue, 15 pin female
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Which port would you connect to get access
to a network?
◦ Ethernet
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Joe wants to convert his old records to CD’s.
Which port can you plug his record player
into?
◦ Line In
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Which port is a common plug and play one?
◦ USB
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Practice Connecting Cables
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Handout
◦ What port would you connect the device to?
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Which part of the computer performs
calculations and controls processes?
◦ CPU
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What is it called when people can speak into a
PC and have it perform those commands?
◦ Voice recognition
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Which type of memory is volatile?
◦ RAM
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Which software translates speech into text?
◦ Voice recognition
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What is the name of the path that data travels
on a motherboard?
◦ Bus
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Which type of storage device has no moving
parts?
◦ Flash/USB drive
Chapter 2b- Peripherals & Ports