1. Computing Fundamentals
Unit 2, Part 2- Input, Output, & Peripherals

2. Objectives Identify & describe input devices
Identify & describe output devices
Connect input & output devices to a computer
Identify common peripherals

3. Input Devices
Allow data IN the computer

4. Keyboard- Input Regular Ergonomic Wireless Flexible Virtual
Ergonomic: allows use of more natural hand, wrist, and arm position. Help prevent carpal tunnel.
Wireless: Has a USB device to receive/transmit signals.
Flexible: rolls up for travel; is water-resistant.
Virtual: portable.

5. Input Device- Mouse Mechanical Mouse (OLD) Has a rubber ball under
Sensor detect movement
Must use mouse pad

6. Input Device- Mouse Optical Laser Wireless LED on bottom
No mouse pad needed
Not good on glass
Laser
Laser light on bottom
20x better sensitivity
Wireless
USB Receiver
Optical or Laser
Come in wired & wireless

7. Voice Recognition- Input
Speak commands into PC & enter text
Software must be installed
Disabled people use

8. Are these input devices?

9. Digital Camera- Special Input
Capture still pics & videos
Point & shoot
DSLR
Pictures stored to media card
SD is most common
Transfer to computer

10. Digital Camera Features
Lens/Zoom
Digital Zoom
Optical Zoom
Rechargeable Battery
NO ALKALINES!
Megapixels
Pixel= single dot
Mega= million
More= better prints
Touch screen
Wireless Transfer

11. Project Bring in your digital camera Make a feature chart
Brand, Megapixels, Optical zoom, digital zoom, screen size, type of memory card, special features, type of battery

12. Printers- Output Device
DPI
Dots per inch
More dots= better quality
4800 x 1200 (H x V)
PPM
Pages per minute
Black & Color speeds
Color is slower

13. Dot Matrix Printer- OLD
Pins hammer into ink ribbon
Connected paper with guide holes
Not good quality
Slow & noisy

14. Inkjet Printers Nozzles spray liquid ink Very good quality Quiet Fast
Inexpensive

15. Laser Printer Laser inside Toner is a powder Very fast printing
Thousands of pages from toner
Very fast printing
B&W or color
4 color toners (CMYK)

16. Other Printers All-In-One Photo Printer Plotter Print, copy, scan
Some have fax too
Inkjet & laser
Photo Printer
Small
4 x 6 glossy
Plotter
Large paper
Drafting, posters

17. More About Printers How they connect Make money from ink & toner
Wired- USB or network
Wireless
Print from any PC, phone, tablet
Make money from ink & toner
Printer: $50
Ink Cost: $6
Price You Pay: $20-$30

18. Your Printer Get your printer brand & model # Look up: 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

19. Output Devices
Data comes OUT of the computer
Name some

20. Monitors Video card in case sends images to monitor CRT LCD & LED
Big & bulky
LCD & LED
Thin, flat-panel
Less energy
Connect w/ video cable & power

21. Front of Case

22. PC Connections

23. PS/2 Ports
Purple
Keyboard
Green
Mouse
Both 6 pin female

24. Video Display Ports VGA HDMI Blue 15 pin female Video only, analog
Digital HD video & audio through one cable

25. USB Ports Transfer data & electricity Plug and play (PnP) High speed
“Hot swappable”
High speed
2.0- fast; 10 songs/sec.
3.0- faster; 100 songs/sec.
Average digital photo is 2MB. Average mp3 song is 3-4MB. At typical USB speeds, you can transfer about 10 songs per second or 20 pictures per second. FRONT & BACK of PC.

26. Network Port NIC or Ethernet Connect to network
Use an Ethernet Cable or Network Cable

27. Parallel & Serial Parallel Serial 25 port female IEEE 1284
Old Printers
Serial
9 port male
RS-232
Old modems & mice

28. Parallel & Serial Devices

29. Modem
Modem
RJ11
Phone/Line Jacks
56kbps
Modulate Demodulate
Analog

30. Audio Ports Line In Line Out Microphone Audio into PC
Record Player to PC
Line Out
Headphone
Speakers
Microphone

31. Ports on Your Computer
Bring in Laptop or Take picture of laptop/desktop ports
Laptop- all sides
Print in class & label
View & connect wires to class PC’s
Practice connecting wires

32. Review Which video port sends HD audio & video through one cable?
HDMI
What common port transfers data and can charge your cell phone?
USB
How many pins is the old keyboard & mouse ports?
6 pin female
The VGA port is what color and how many pins?
Blue, 15 pin female

33. Review Which port would you connect to get access to a network?
Ethernet
Joe wants to convert his old records to CD’s. Which port can you plug his record player into?
Line In
Which port is a common plug and play one?
USB

34. PC Connections

35. Review 1 Practice Connecting Cables Handout
What port would you connect the device to?

36. Other Ports
S-video
HDMI
DVI
Firewire

37. Review
Which part of the computer performs calculations and controls processes?
CPU
What is it called when people can speak into a PC and have it perform those commands?
Voice recognition
Which type of memory is volatile?
RAM

38. Review Which software translates speech into text?
Voice recognition
What is the name of the path that data travels on a motherboard?
Bus
Which type of storage device has no moving parts?
Flash/USB drive

39. Computing Fundamentals
Unit 2, Part 2- Input, Output, & Peripherals