Oscilloscopes handle 500MHz to 2GHz

What is an ASIC?
An application-specific integrated circuit (ASIC) is an IC that is customised for a specific application (end product or a closely related family of end products), such as a chip which is designed to run a cellular handset.

What is an ADC?
ADC stands for analogue-to-digital converter. It is an electronic device that converts input analog voltage to a discrete digital number.
Applications include anything that involves the processing of analogue signals into digital form.

What is an oscilloscope?
Oscilloscopes are test instruments that display electronic signals (either waves or pulses) on a screen. It creates its own time base against which signals can be measured, and displayed frames can be frozen for visual inspection. It is sometimes abbreviated as CRO, for cathode-ray oscilloscope, or commonly called scope or O-scope.