Category Archives: Notes

Notes for A+ Exams

IRQ

The computing phrase “interrupt request” (or IRQ) is used to refer to either the act of interrupting the bus lines used to signal an interrupt, or the interrupt input lines on a Programmable Interrupt Controller (PIC). The interrupt request level … Continue reading

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RISER CARD

A riser card is a printed circuit board that picks up a multitude of signal lines (often bused) via a single connector (usually an edge connector) on a mainboard and distributes them via dedicated connectors on the card. There are … Continue reading

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EXPANSION CARDS AND EXPANSION BUSES

The expansion card (also expansion board, adapter card or accessory card) in computing is a printed circuit board that can be inserted into an expansion slot of a computer motherboard or backplane to add functionality to a computer system via … Continue reading

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BLUE STACKS

BLUE STACKS Bluestacks is an American technology company that produces the BlueStacks App Player and other cloud-based cross-platform products. The BlueStacks App Player is designed to enable Android applications to run on PCs running Microsoft Windows and macOS. The company … Continue reading

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OSCILLOSCOPE TUTORIAL

OSCILLOSCOPE TUTORIAL An oscilloscope, previously called an oscillograph, and informally known as a scope, CRO (for cathode-ray oscilloscope), or DSO (for the more modern digital storage oscilloscope), is a type of electronic test instrument that allows observation of constantly varying … Continue reading

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XEROX COPIER THAT TRANSLATES

XEROX COPIER THAT TRANSLATES

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