What is Input?

What are Optical Scanners? 

An optical scanner is any scanning technology that converts a physical image, text, or object into a digitized form that can be stored as a 2D image file on a computer.  3D scanners also exist, but they are not widespread and are sometimes based on  different technologies.   Price? Optical scanners have been around for decades and their price has dropped accordingly.  You can buy low-level used optical scanners on eBay for as little as 20 US dollars (USD)  and a new scanner on newegg.com for around 50 USD. Better optical scanners sell  for hundreds of dollars. How about the basic technology?  The basic technology underlying optical scanners is that of the charge-coupled device (CCD). A CCD consists of a capacitor array that is sensitive to light. 1D Wireless Blue-tooth & Zig-bee long-range laser scanners High performance Wireless Optical laser scanner With RIOTEC laser engine, No Moving parts inside LS6000B: 90M max. LS6000Z: Up to 250 units scanners in single cradle Ergonomic design & light weight for easy use 3 LED indicators DEMO different functions (power, RF communication, good read, charging) Up to 30,000 scans per full charge Cover with rubber for well protection One shot programming completes setting Cradle can be hands-free stand and receiver Bar Code Reader This multi-purpose handheld bar code reader provides the power of a bar code scanner,  a digital camera and document scanner in single cost-effective device.  EPSON V300 Photo Scanner Hardware input device that allows a user to take an image or text and convert it  into a digital file, allowing the computer to read or display the scanned object.  A scanner is commonly connected to a computer USB, Firewire, Parallel or SCSI port.   Card Reader Memory Card Readers: Just like a CD-R or floppy disc, you need a device to read  what is on the flash memory; this is where a card reader comes in. You can connect  the card reader to your notebook or PC through a USB port. Notebooks can also use  a PCMCIA reader.   Image Capturing Devices Digital Camera A digital camera (or digicam) is a camera that takes video or still photographs, or both,  digitally by recording images via an electronic image sensor. Most 21st century cameras are  digital. Digital cameras can do things film cameras cannot: displaying images on a screen  immediately after they are recorded, storing thousands of images on a single small memory  device, and deleting images to free storage space.  Do you know?? The majority, including most compact cameras, can record moving video with sound  as well as still photographs. Some can crop and stitch pictures and perform other  elementary image editing. Some have a GPS receiver built in, and can produce  Geo tagged photographs. Types of Digital Camera : Sony Cyber Shot DSCT200 Olympus MJU 780 High Resolution Digital Camera Evolution of camera Follow this link :   http://www.technewsdaily.com/digital-camera-history-the-evolution-of-the-camera-0478/ http://www.darkroastedblend.com/2010/05/evolution-of-camera.html  Digital Video Cameras Digital Video (DV) is an ideal format for anyone wanting to use a camcorder (DV camera)  to work with video on the PC or the Web. The most exciting aspect of DV editing is the  purity of the content. No matter how much you work with your video,  if you keep the data in a digital format, the video quality will be exactly the same. For the shooting, only high quality digital 3-CCD cameras are used that provide an  excellent image quality – upon request, we will also guarantee HDV.  These professional 3-CCD Chip cameras have the highest relative aperture  of all cameras currently on the market.  Instant Messaging and Web Cams The latest web cam from Genius, Look 110, works with Windows Vista, XP, 2000, Me, 98SE.  Whether you are creating video emails or hosting one-to-one video chats, this easy to use  web cam adds a personal touch to your online communication. Logitech Quickcam Zoom Web Cam Hewlett Packard RD345AA Web Cam How to use any Digital Camera as a web cam? Choosing a Webcam For Instant Messaging Quality. Quality of a webcam is determined by the type of sensor and many webcam's now use CCD technology as found in many Digital Cameras. Low end and Early web cams use CMOS sensors which offer lower quality so it is important to choose a webcam that offers a good enough resolution to deliver clear crisp images and smooth video.   Simplicity. Almost all of the webcams available today require a USB connection to the computer so it is important to check your PC or Laptop has this connector available. You will also want to find a Webcam from a reputable manufacturer some of which include Logitech, Microsoft, Labtec, Saitek, Hauppauge and Axis as they will offer simple and well tested software installations which should work with little or no configuration of your Instant Messaging software.  PLEASE CHECK! Also check that your webcam has a usable stand or connector to enable you to attach the device at a suitable position - monitor mounted webcams are often the best choice as they offer the best position and distance to capture a persons face for instant messaging. Price. The price of webcams do vary considerably and you can pay anywhere from ten to hundreds of dollars for a webcam. For instant messaging a mid range webcam should not only provide the best quality but also offer a good level of support and compatibility. Some webcams offer face tracking and zooming technology and if you want these features you will have to pay slightly more but this does make day to day use of the webcam a little easier as it will not require as much repositioning.