NT is based on VMS which was a very nice multiuser system. In fact they stole quite of bit of it and had to pay for it. Actually, no. Dave Cutler helped design VMS, and then designed NT. Unfortunately Bill Gates had a change of heart in the middle of the stream and told Cutler to basically make a 32-bit version of Windows 3.1. Ah, what NT could have been had techniclally Gates not decided to ride NT on the popularity of 3.1, and make it compatible.
It's Mach with BSD compatibility built in.
It's a combined Mach/BSD. Instead of using the BSD kernel and userland, Apple replaced the I/O and driver part of the kernel with Mach. This helped make the system more portable across architectures, and it obviously helped Apple immensely.
Windows contains quite a bit of BSD code as well.
Windows has almost no BSD code left. In the beginning NT had the BSD network stack but that was gone by the next version. The only thing left is a few little command line utilities like ftp.exe.
Actually, no. Dave Cutler helped design VMS, and then designed NT. Unfortunately Bill Gates had a change of heart in the middle of the stream and told Cutler to basically make a 32-bit version of Windows 3.1. Ah, what NT could have been had techniclally Gates not decided to ride NT on the popularity of 3.1, and make it compatible.
Actually yes, microsoft paid 60 million to DEC for the VMS code that Cutler put in.
It's a combined Mach/BSD. Instead of using the BSD kernel and userland, Apple replaced the I/O and driver part of the kernel with Mach. This helped make the system more portable across architectures, and it obviously helped Apple immensely.
No. Apple *started* with Mach(see MkLinux) and decided to go with NextStep, which had a BSD subsystem grafted on. You're putting the cart before the horse.
Windows has almost no BSD code left. In the beginning NT had the BSD network stack but that was gone by the next version. The only thing left is a few little command line utilities like ftp.exe.
Fair enough. But my point stands. Is Windows NT BSD? The question is hypotehtical in case anyone here is rhetorically impaired. Windows contains quite a bit of BSD code as well. Windows has almost no BSD code left. In the beginning NT had the BSD network stack but that was gone by the next version. The only thing left is a few little command line utilities like ftp.exe.