Computing Fundamentals Chapter 2 b Peripherals Ports Objectives
Computing Fundamentals Chapter 2 b- Peripherals & Ports
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 � Standard � Ergonomic � Wireless � Flexible � Virtual
Input Device- Mouse � Mechanical � Has Mouse (OLD) a rubber ball under ◦ Sensor detect movement � Must use mouse pad
Input Device- Mouse � Optical ◦ LED on bottom ◦ No mouse pad needed ◦ Not good on glass � Laser ◦ Laser light on bottom ◦ No mouse pad needed ◦ 20 x better sensitivity � Wireless ◦ USB Receiver ◦ Optical or Laser
Voice Recognition- Input � Speak commands into PC & enter text � Software must be installed � Disabled people use
Are these input devices?
Review- 4 Q � Which type of mouse’s movement is caused by a ball? ◦ Mechanical � You just got a fancy, new glass computer desk. Which type of mouse should you use? ◦ Laser � How does a wireless mouse connect to a computer? ◦ USB adapter � If a person cannot type, what would you recommend so they can use a computer? ◦ Voice recognition software/microphone
Digital Camera- Special Input � Capture videos still pics & ◦ 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 � Make a feature chart for a digital camera ◦ P&S, DSLR, Phone � Brand, Megapixels, Optical zoom, digital zoom, screen size, type of memory card, special features, type of battery
Output Devices � Data comes OUT of the computer � Name some
Monitors � Video card in case sends images to monitor � CRT ◦ Big & bulky � LCD & LED ◦ Thin, flat-panel ◦ Less energy � Connect w/ video cable & power
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 � Dot Matrix ◦ 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 ◦ Thousands of pages from toner � Very fast printing � B&W or color ◦ 4 color toners (CMYK)
Other Printers � All-In-One ◦ 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 ◦ Wired- USB or network ◦ Wireless �Print from any PC, phone, tablet � Make toner money from ink & ◦ 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
Review- 4 Q � Which type of printer uses a hammer that strikes a ribbon? ◦ Dot matrix � You just received a new toner for your printer. Which type of printer do you have? ◦ Laser printer � What is the measurement of a good quality print? ◦ Dpi � If you want to know how fast a printer prints, which feature are you interested in? ◦ ppm
Front of Case & Ports
PC Connections
PS/2 Ports �Purple ◦ Keyboard �Green ◦ Mouse �Both 6 pin female
Video Display Ports �VGA ◦ Blue ◦ 15 pin female ◦ Video only, analog �HDMI ◦ Digital HD video & audio through one cable
USB Ports � Transfer data & electricity � Plug and play (Pn. P) � High speed ◦ “Hot swappable” ◦ 2. 0 - fast; 10 songs/sec. ◦ 3. 0 - faster; 100 songs/sec.
Network Port �NIC or Ethernet �Connect network �Use to an Ethernet Cable or Network Cable
Parallel & Serial � Parallel ◦ 25 port female ◦ IEEE 1284 ◦ Old Printers � Serial ◦ 9 port male ◦ RS-232 ◦ Old modems & mice
Parallel & Serial Devices � Parallel � Serial
Modem � RJ 11 � Phone/Line � 56 kbps Jacks
Audio Ports � Line In � Line Out ◦ Audio into PC ◦ Record Player to PC ◦ Headphone ◦ Speakers � Microphone
Other Ports � S-video (OLD) ◦ Digital video out � DVI (OLD) ◦ HD video out � Firewire (OLD) ◦ Replaced by USB
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
PC Connections
Review- 4 Q � 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- 3 Q � 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 ◦ USB port is a common plug and play one?
Review 1 � Practice Connecting Cables � Handout ◦ What port would you connect the device to?
Review- 3 Q � 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 ◦ RAM type of memory is volatile?
Review- 3 Q � Which software translates speech into text? ◦ Voice recognition � What is the name of the path that data travels on a motherboard? ◦ Bus � Which parts? type of storage device has no moving ◦ Flash/USB drive
Computing Fundamentals Chapter 2 b- Peripherals & Ports
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