Mechanical, Visual and Functional Layouts
Today, most keyboards use one of three different mechanical layouts, usually referred to as simply ISO (ISO/IEC 9995-2), ANSI (ANSI-INCITS 154-1988), and JIS (JIS X 6002-1980), referring roughly to the organizations issuing the relevant worldwide, United States, and Japanese standards, respectively. (In fact, the mechanical layouts referred such as “ISO” and “ANSI” comply to the primary recommendations in the named standards, while each of these standards in fact also allows the other way.) Keyboard layout in this sense may refer either to this broad categorization or to finer distinctions within these categories. For example, as of May 2008 Apple Inc produces ISO, ANSI, and JIS desktop keyboards, each in both extended and compact forms. The extended keyboards have 110, 109, and 112 keys (ISO, ANSI, and JIS, respectively), and the compact models have 79, 78, and 80.
Read more about this topic: Keyboard Layout
Famous quotes containing the words visual and/or functional:
“For women ... bras, panties, bathing suits, and other stereotypical gear are visual reminders of a commercial, idealized feminine image that our real and diverse female bodies cant possibly fit. Without these visual references, each individual womans body demands to be accepted on its own terms. We stop being comparatives. We begin to be unique.”
—Gloria Steinem (b. 1934)
“In short, the building becomes a theatrical demonstration of its functional ideal. In this romanticism, High-Tech architecture is, of course, no different in spiritif totally different in formfrom all the romantic architecture of the past.”
—Dan Cruickshank (b. 1949)