Windows和OpenVMS之间的区别

1. Windows：
Windows是Microsoft Incorporation提供的一组各种专有图形操作系统。它也被称为Microsoft Windows 。它目前包括Windows NT和Windows IoT作为其家族的成员。早期包括不再使用的Windows 9x，Windows Mobile和Windows Phone。它是个人计算机中使用最多的操作系统。 Windows的第一个版本由Microsoft于1985年发布。它具有带有模块的混合内核。

2. OpenVMS：
OpenVMS是由Digital Equipment Corporation(DEC)开发的多用户和多处理操作系统。它是基于虚拟内存的操作系统，旨在用于分时，批处理和事务处理。它可用于许多平台，包括服务器和工作站。它是使用BLISS，VAX Macro，C，Ada，PL / I，Fortran，UIL，Pascal，SDL，C++和DCL编写的。 OpenVMS的第一个版本于1977年发布。此操作系统中使用的内核与模块是整体的。

Windows和OpenVMS之间的区别：

S.No.	WINDOWS	OPENVMS
1.	It was developed by Microsoft Incorporation.	It was developed by Digital Equipment Corporation (DEC).
2.	It was launched in 1985.	It was launched in 1977.
3.	Its target systems types are workstation, personal computers, media center, tablets and embedded systems.	Its target system types are server and workstation.
4.	Computer architectures supported by Windows are IA-32, x86-64, IA-64, ARM, Alpha, MIPS and PowerPC.	Computer architectures supported by OpenVMS are VAX, Alpha and IA-64.
5.	Its kernel type is Hybrid with modules.	Its kernel type is Monolithic with modules.
6.	Its native APIs are Win32 and NT API.	Its native APIs are Proprietary.
7.	It has the preferred license Proprietary and Source available.	It has the preferred license of Proprietary.
8.	The non-native APIs supported through its subsystems are DOS API, Win16, POSIX and .NET.	The non-native APIs supported through its subsystems are POSIX.
9.	Its package management is MSI or custom installer.	Its package management is PCSI or VMSINSTAL.
10.	It has default GUI ‘on’.	It does not have default GUI ‘on’.
11.	File systems supported by Windows are NTFS, FAT, ISO 9660, UDF, HFS+, FATX and HFS.	File systems supported by OpenVMS are Files-11, ISO 9660, NFS and CIFS.