This monitor is a glorified touch screen like on your cell phone or music player or game screen that you hold in your hand only this one is too big for one person to hold. I have purchased four of these to upgrade technology at our school. Our teachers and students had limited exposure to interactive projectors, but these monitors have advantages over projectors. Monitors like this are brighter and don't have bulbs to burn out. The person at the screen does not create a shadow to work around as when standing between the projector and the screen and, while both need calibrated (touching points on the screen in order for the screen to sense a touch where it "knows" the point is displayed so as to align the touch point with the display point) this monitor needs far less calibration and often none at all even after moving it from one room to another. All four worked perfectly right out of the box even though three were purchased as "used" or "refurbished," and one of those three had a big four inch scratch on the screen (fairly and accurately documented by the seller). The point is that one had been roughed up a little and still works fine so these are hardy and reliable. One monitor had a "dead" spot in the center of the screen such that you would be drawing with your finger horizontally from one side to the other and the line would stop drawing about 1/3 across the screen and then become visible again about 2/3 across the screen. Thanks to SHARP support who answered my request for help from their website within a day (no formal support agreement here, just helping a customer using their product). Anyway, just needed to check the plastic coverings around the screen edges where the glass screen meets the outer edge case to press more firmly in place so that one of them was not blocking the infrared sensor. You need a computer to run these. We are using laptops running Windows 7, and the Sharp driver and programs have all worked fine. There are three programs: a driver program, a Pen Software program which runs one mode like a standard whiteboard that you can write on with an included pen or just use your finger and a second mode that is an overlay to any other screen you can display on your computer and then write (annotate) over that like displaying a picture of someone while using the overlay to draw a mustache and glasses on them, and, finally, a Program Launcher program which displays program icons like on your windows background screen that you can touch on the Sharp monitor to run the program rather double clicking it with your mouse. You can plug a VGA and sound cable or an HDMI cable for the video/audio from your computer (you must provide) and a USB cable (comes with monitor along with power cord) to connect the "touch" features to your computer. I have not tried this with Windows 8, however, I ran the Windows 8 Upgrade Assitant which did not flag the Sharp software as incompatible although it flagged other programs on my laptop. The monitor works with Windows programs like Internet Explorer such that you can scroll through web pages with your finger by up and down movements and go to links on web pages by just touching them with your finger. So, it is all very intuitive for teachers and students who learn quickly and love using these. I highly recommend this monitor. One drawback is that it may not have as many "canned" lesson plans and curriculum like some products made specifically for educational useRead full review
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