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

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

Input Devices Allow data IN the computer

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.

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

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

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

Are these input devices?

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

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

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

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

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

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

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)

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

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

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

Output Devices Data comes OUT of the computer Name some

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

Front of Case

PC Connections

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

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

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.

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

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

Parallel & Serial Devices

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

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

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

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

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

PC Connections

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

Other Ports S-video HDMI DVI Firewire

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

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

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