Scalability

 
		UNIX		WINDOWS NT

Multi-platform support		Some		Y

Multiprocessor support		Some		Y*

Client-only edition		Some		Y

Support for MS-DOS applications		Y		Y

Support for 16-bit

Windows applications		Limited		Y

Support for 32-bit

Windows applications		N		Y

Support for Posix

applications		Y		Y

Support for X Window

applications		Y		N

• * = upto 32 processors
• NT and most Unixes let you add more same-type CPUs or use a faster CPU
• NT runs identical source code across CPU types - though it also has a workstation and server edition
• Unixes offer less-resource-intensive files and services
• DOS and 16-bit Windows applications require an Intel CPU - some Unix systems emulate the Intel CPU in software (Solaris)
• DOS and 16-bit Windows applications require an Intel CPU - some Unix systems emulate the Intel CPU in software (e.g. Solaris)