A computer keyboard consists of alphanumeric or character keys for typing, modifier keys for altering the functions of other keys, navigation … 展开

As noted before, the layout of a keyboard may refer to its physical (arrangement of keys), visual (physical labeling of keys), or functional (software response to a key press or release) layout. 展开

There are also keyboard layouts that do not resemble traditional typewriter layouts very closely, if at all. These are designed to reduce finger movement and are claimed by some proponents to offer higher typing speed along with ergonomic benefits. 展开

The orthography used for Chinese, Japanese, and Korean ("CJK characters") requires special input methods, due to the thousands of possible characters in these languages. Various methods have been invented to fit every possibility into a QWERTY keyboard, so … 展开

Keyboard layouts have evolved over time, usually alongside major technology changes. Particularly influential have been: the Sholes and Glidden typewriter (1874, also known as … 展开

Although there are a large number of keyboard layouts used for languages written with Latin-script alphabets, most of these layouts are quite similar. They can be divided into three main … 展开

Some keyboard layouts for non-Latin alphabetic scripts, most notably the Greek layout, are based on the QWERTY layout. In these layouts, glyphs are assigned to keys that correspond as … 展开