A digital storage oscilloscope (DSO) is a modern type of oscilloscope that captures, displays, and analyses electrical waveforms using digital technology. Unlike analogue oscilloscopes that directly display waveforms on a cathode ray tube (CRT), digital storage oscilloscopes convert incoming analogue signals into digital form for storage, processing, and visualization on a digital screen.

Digital storage oscilloscopes have become the standard in modern electronics due to their accuracy, flexibility, and advanced features. Their ability to capture, store, and analyse digital representations of waveforms makes them essential tools for engineers, technicians, researchers, and educators working in fields related to electronics, telecommunications, automotive, aerospace, and more.