HP Visualize J5000 hp Visualize J5000, J7000 workstations service handbook (a4 - Page 32
Keyboards
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Keyboards There are two types of Hewlett-Packard keyboards available for use with this workstation. They are the following: D PS/2 Keyboard D ITF Keyboard CAUTION: Use only devices that conform to the HP-HIL specification with Hewlett-Packard computer systems. Devices that are not HP-HIL compatible but have similar connectors may appear to be compatible, but will damage your system. Keyboard Differences Aside from the obvious difference in the appearance of the ITF and PC style keyboards due to the arrangement of the keys, there is also a difference in the keys and their output codes. Some keys on one keyboard (the ITF keyboard for example) may not exist on the other keyboard. These keys generate codes that may not exist as output from the other keyboard (or may be generated by a different key). Codes that are generated when a key is pressed are called keycodes. Some applications expect to use keycodes generated by keys existing on one of the keyboards (the ITF keyboard for example). Since the keys do not exist on the other keyboard (the PC keyboard for example), an accommodation must be made if the PC keyboard is to be used. In most cases, it is still possible to use some other key that is equivalent (generates the same keycode from a different keycap). To do this, it is necessary to know which keys are equivalent on the two keyboards. Table 1-7 compares the equivalent keys of the ITF and PC keyboards. NOTICE: Keyboard keys not mentioned in Table 1-7 are the same on both keyboards. 1-18 Product Information