Oscilloscope Glossary

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Term Definition
I/O

Input/Output
I2C

I2C (Inter-Integrated Circuit) - a serial two-wire bus used for low speed communication between peripherals and controller and in embedded systems.

IEEE-488

Short range digital communications bus originally invented in the late 1960s by Hewlett-Packard for automatic test equipment. Also known as HP-IB, GP-IB and GPIB.
impedance

Opposition to a AC current when a voltage is applied. Equivalent of resistance in DC circuits.
input impedance

Shunt resistance and capacitance measured at the input terminals.
interleaving

Two or more channels are combined and used alternately to achieve higher sampling rates.