'''PowerBASIC for DOS''' (a.k.a. '''PB/DOS''') is the DOS compiler for PowerBASIC.
Unlike the Windows versions of PowerBASIC, PB/DOS is very similar to QBasic and other, older Microsoft BASICs, and PB/DOS can in fact compile most QBasic and GW-BASIC programs unchanged. (PB/Win and PB/CC use a variation of BASIC that is somewhat similar to Visual Basic.)