Another common criticism is that although the bunched arrow keys of previous generation has been fixed by returning to the standard inverted T layout, the six-key nav/edit cluster has been changed to a 2x3 vertical layout, with Ins moved to the F-Lock function of PrtScn/SysRq, and Del key expanded to double height. The Natural Multimedia Keyboard reworked the row of multimedia buttons and included the controversial F Lock feature, originally debuted in the Microsoft Office Keyboard. In September 2002, Microsoft introduced the redesigned Natural Multimedia Keyboard (sometimes styled as MultiMedia) at a retail price of US$54.95 (equivalent to $77 in 2018).
The Natural Keyboard Pro also included an internal two-port USB hub, which was commonly used to connect other input devices such as a mouse or trackball, but this was dropped in subsequent iterations. Some other modern operating systems, such as FreeBSD and most Linux distributions, have comparable configuration options.
Vista and Windows 7 have the ability to customize shortcut key behavior without additional software when using the 'internet keyboard' keyboard layout. In versions of Windows prior to Windows Vista, Microsoft's Intellitype software is required to configure the behavior of the shortcut keys. The Natural Keyboard Pro restored the standard inverted-T layout of the cursor keys and six-key nav/edit cluster 2×3 layout, and added a row of program shortcut keys along the top edge of the keyboard (above F1 - F12 and the numeric keypad), including multimedia keys and Power management keys. The third iteration was the Natural Keyboard Pro, introduced in June 1999 at a retail price of US$74.95 (equivalent to $113 in 2018). ^ a b Hotkey functions are mainly integrated via F-lock on F1- F12, and a few dedicated buttons are also provided.
Ins moved to PrtScrn as the function under standard F-Lock functioning (i.e., when F1– F12 are active).
^ a b Standard 101-key QWERTYkeyboard layout with the addition of two Windows keys and a contextual menu key on the spacebar row.Split spacebar two dedicated hotkeys, both launch Calculator. Microsoft ergonomic keyboards Nameĭesigned by Ziba Design and manufactured by Key Tronicį-Lock to toggle from standard software-defined Fn functions In general, ergonomic keyboards are designed to keep the user's arms and wrists in a near-neutral position, which means the slant angle (the lateral rotation angle for the keys in each half relative to the axis of the home row in a conventional keyboard) is approximately 10 to 12.5°, the slope (the angle of the keytop surfaces starting from the front edge closer to the user towards the top of the keyboard, relative to a horizontal plane) is -7.5°, and the tent or gable angle of each half (the angle of the keytops from the center of the keyboard towards its left and right edges, relative to the horizontal desk surface) is 20 to 30°.