While there are countless types of ergonomic keyboards, the most common are typically going to be angled keyboards and split keyboards. Angled keyboards, often referred to as “Alice”-style keyboards in the mechanical keyboard world (named after the TGR Alice), split the alphanumeric keys along the middle, positioning the two halves at an angle from one another while keeping the modifier keys (backspace, enter, shift, and so on) in their standard positions. The angle will vary between keyboards, as will the number of keys, but the main constant in an Alice-style keyboard is that, despite the halves being separated from one another, the keyboard itself is not split. It has one case that all of the keys are held in.
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