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Seagate Backup Plus Slim External USB 3.0 2TB Hard Drive Review
The The "optical" refers to the mouse
Mon, March 04 2002 | 2:15PM | PermaLink Feedback?
"Cordless technology for PC peripherals is becoming more popular, with the first wave of products using infra red as their method of communication. Whilst Infra red is cheap, it has the disadvantage of requiring line of sight with the receiver which somewhat limits its usefulness. Infra red is now being replaced by radio technology which has dropped to comparable cost and does not require line of sight. In other words, it is vastly superior. Logitech, always at the forefront of PC peripheral technology have several cordless radio products on the market and I am going to look at their current flagship desktop product. The Logitech Cordless Desktop - Optical. As you would expect from its name, this is a cordless keyboard and mouse combination. Unlike it's name would suggest, this product uses radio and not infra red technology for communication. The "optical" refers to the mouse. It being of the female variety. I.E. it has no balls or tail, instead it uses an optical sensor for tracking movement"
Original URL, circa 2002:

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