trackball
a pointing device consisting of a ball on top of a base that is rotated to move a cursor on the computer screen
Example Sentence: “The handicapped person used a trackball instead of a mouse to move the cursor.”
Part of Speech: noun (thing)
Home Unit: Input Devices
trackball
a pointing device consisting of a ball on top of a base that is rotated to move a cursor on the computer screen
Example Sentence: “The handicapped person used a trackball instead of a mouse to move the cursor.”
Part of Speech: noun (thing)
Home Unit: Input Devices
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November 2011
The latest new feature added is WORLD RANKING. You can view your current world ranking (and country ranking) by clicking on the world ranking icon on the right sidebar. My hope is that this feature will make people want to rank high in their own country. It seems to be working. Students are averaging over 35 completed units per day!
I haven't had a lot of time to work on the site lately ;( I've been busy at work and helping my wife take care of our daughter. I have a newfound respect for parents. Being a parent is much harder and more time-consuming than I ever could have imaged.
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