Square Wave
From bildr
A signal that oscillates from it's highest value to its lowest value with a 50% Duty Cycle (It spends the same amount of time at the high value as it does the low). The ideal square wave has no rise or fall time and is perfectly symmetric. Real-world square waves have a short amount of fall/rise time, but are usually orders of magnitude less than the cycle period.
This page is an Article on bildr. Articles are pages that define or explain a concept, method, or generic item.