The
Insert key
is a toggle key and in MS-DOS and many other software packages, is used to
alternate between Insert and Overwrite modes. In Insert mode characters are placed in front of
existing text; in Overwrite mode characters type replace the original text. Many software packages
assign other special functions to the Insert key, details of which will appear in the relevant manual.
The Delete Key
In MS-DOS and many other software packages the
Delete key
is used to delete the character at
the present cursor position.
The Prt Sc (Print Screen)/SysRq Key
When in DOS and most programs running in text mode, the
Prt Sc
key
can be pressed to obtain a
hard copy printout of the present screen display. The
Sys Rq key
is rarely used but may be
assigned some special function in some software. Note that the PrtScn/SysRq key has no action
when in Windows.
The Scroll Lock Key
The
Scroll Lock key
is a toggle key. When engaged, the Scroll Lock LED indicator to the right of
the LCD display will be illuminated. This key has no function in MS-DOS and its function, if any,
will depend on the individual software package. This key has no function in Windows. [SX/DX
4-6]
The Pause/Break Key
This key can be pressed to pause execution of some programs and may have other uses in some
software.
THE NUMERIC KEYPAD
The final group of keys on your keyboard is the Numeric Keypad. On a conventional keyboard, the
numeric keypad is usually a separate block of keys. On the 486SX/DX-WinBook these keys have
been integrated into the main typewriter keys.
4 of 5
3/2/99 12:29 PM
THE TYPEWRITER KEYS SX/DX
file:///C|/test/HtmlHelp/TechhelpTHE_TYPEWRITER_KEYS_SXDX.html
