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Relative to its object, a real image formed by a lens is always
Opportunity Cost
The value of the next best alternative forgone as the result of making a decision; essentially, the cost of choosing one option over another.
Cookies
Small files stored on a user's computer by a web browser, collecting data about the user's browsing activities.
Human Mediated Order
A process where human intervention is involved in the placing or processing of orders, as opposed to automated systems.
Touchscreens
Input devices that allow users to interact with electronic devices by touching the screen directly.
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