![]() ![]() The type had been invented for the IBM Model F wherein switches are backed by a curved PCB. The same common keycap shape can be used on all rows. It is almost as if the rows have been moved one step down.Ī keyboard with a curved profile emulates a sculptured shape by making each row have a different angle. Vintage Apple keyboards (with Alps SKCL/SKCM series or Mitsumi standard mechanical switches) have a completely Apple-specific contoured profile that is not compatible with any other manufacturer. The DCS profile is available with several types of mounts, including Cherry MX-compatible "U" mount and Alps-compatible "Z" mount. This can cause inconsistencies when using modifier keys from an adapter kit made by SP together with Cherry keys on the same row. Most notably, the profile for the bottom two rows (row 4 profile) is angled more than Cherry's row 'B', while being also lower than Cherry's now deprecated row 'A'. Signature Plastics' popular DCS family is mostly profile-compatible with Cherry Corp.'s keys, but not exactly. QWERKeys's "J series" is a copy of Cherry's profile row E,D,C,B but QWERkeys numbers them 1,2,3,4 from the top. Modern Cherry keyboards have the same 'B' row profile on the two bottom-most rows, but some vintage Cherry keyboards have the 'A' row profile on the bottom row, which is higher and more angled.Īll Cherry keyboards with row 'A' are winkeyless, but not vice versa. Cherry's keys are sharper on the bottom than most other manufacturer's keys. Keyboards from Cherry corporation in the G80 and G81 series have contoured keycaps that are somewhat lower than the "standard" profile. ![]() There are also rubber dome keyboards that have this profile, but those usually have a standard key mount and separate sliders over each dome.Ĭherry vs. The profile is used for keycaps with different key mounts and several switch families, including Cherry MX, Alps SKCL/SKCM series and Mitsumi miniature mechanical.Įxample keyboards include keyboards made by Costar (such as Filco Majestouch and WASD Keyboards), Das Keyboard (III), iOne, SteelSeries, Chicony, etc. Most vintage and modern mechanical keyboards have keycaps in what is called "Standard Profile" or "OEM Profile". Other manufacturers label rows in other ways: Several manufacturers do use ISO numbering, or just mostly ISO numbering. The standard also mandates that rows above the alphanumeric section start with K and that rows below the space bar be labelled from Z backwards. The ISO/IEC 9995-1 standard labels rows alphabetically starting with the space bar row as row A, and the bottom alphabetic row as row B, etc. The space bar is often higher and convex. Most keyboards have four row profiles, for the alphanumeric rows, with the function key and space bar rows borrowing their profiles from the adjacent rows. KPT used R4 for the top row and R1 for the bottom, per the mould numbering ![]()
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