Examlex
The aggregate function ____ returns the total of the field values in a selection of records.
Web-based Operating System
An operating system that runs on a web platform, allowing users to access and interact with applications through a web browser.
File History Utility
A backup feature in some operating systems that periodically saves copies of files so that users can recover previous versions.
Preemptive Multitasking
A method where the operating system can preempt or interrupt a currently running task in order to start or resume another task, improving efficiency.
CMOS
Stands for Complementary Metal-Oxide-Semiconductor, a technology used for constructing integrated circuits, including microprocessors and battery-powered memory chips.
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