ISO/IEC 9995 specifies various characteristics of keyboards used by ITE e.g.
a) personal computers, workstations, computer terminals, VDTs (visual display terminals), typewriters, etc, having an alphanumeric keyboard;
b) calculators, telephones and automated teller machines having a numeric keypad.
The keyboard defined in ISO/IEC 9995 is the conventional linear keyboard, which is physically divided into sections and the sections into zones within which the keys are laid out.
In this part of ISO/IEC 9995, the sections of the keyboard are identified and the general shape and relative placement of the sections are specified. Spacing of keys and physical characteristics are covered in this part of ISO/IEC 9995 as are the principles governing the placement of characters and symbols on keys.
This part of ISO/IEC 9995 specifies a key numbering system which applies to all types of numeric, alphanumeric and composite keyboards of ITE.
This part of ISO/IEC 9995 specifies the priniples governing the placement of characters and symbols on keys used on all types of numeric, alphanumeric and composite keyboards of ITE. Although the keyboard defined by ISO/IEC 9995 may be used for different languages, the specifications are written as applying to Latin languages with a character path from left to right and a line progression from top to botttom.
The primary layout within the alphanumeric zone is established in most countries by a national standard or by national usage. Allocation guidelines are provided in ISO/IEC 9995-2. Complementary layouts are specified in ISO/IEC 9995-3.