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You can insert pictures only from a file (not Clip Art from that path).
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MAC means Media Access Control (as in MAC address).
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In many textbook classifications, registers inside the CPU are distinguished from main memory (RAM/DRAM/PROM) and are described as not “available” as ordinary addressable store.
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Double-click the embedded worksheet object to activate it in place, then edit the cells. Formatting the object or editing only the host text does not update the embedded range.
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Windows+Ctrl+F opens Find Computers on a network (domain search).
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You can toggle number, border and font formats — all of the above.
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