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This was only a prototype for a more elaborate time-sharing system that Corbato was working on, called Compatible Time-Sharing System, or CTSS.
Then again, the tested program was only a prototype.
The iriver P20 first made headlines during CES '08 and that was only a prototype.
Nasa said the Z-2 spacesuit was only a prototype, but elements of it would be incorporated into the suit worn by the first humans to reach the Red Planet.
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Quite a creepy confection, but it's only a prototype.
Although it is only a prototype, Electrolux is confident a commercial product could be available next year.
Her voice was supposed to be only a prototype, but all the voices except hers were rejected by focus groups.
It is only a prototype for now, working with the PS4's Move motion controller – the latter is the equivalent of the VR gloves from the 1980s.
The current version of Ooovre is only a prototype and the company is trying to crowdsource £30,000 on Kickstarter to build a more fully-featured service to help local booksellers reach larger audiences online.
It is not known whether the plan was actually put into action, but the doll up for sale is only a prototype, one of three in the whole world.
Remember, it's only a prototype, but I betcha there are plenty of people who would buy one of these.
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