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Windows NT 3.1 WorkstationIn May 1993 the first Windows NT (New Technology) version 3.1 came as a Workstation (Client) and Advanced Server operating system for Intel x86 and RISC architecture to the market. It is the indirect successor to Windows 3.0 and OS/2 2.0 in the new NT product line for high demands on stability. It allows 32-bit applications and makes them available each up to 2 GB of virtual memory. The protected memory area ensures the stability of Windows NT if an application has a crash. To protect against power outages, the use of a UPS is supported. The operating system is suitable as a network client and in the office. The system structure is based on a micro-kernel with support for up to 2 CPUs and can address a maximum of 64 MB of RAM. The file systems NTFS, HPFS and FAT-16 are fully supported. This version of Windows does not support Plug and Play.
Minimum requirement of hardware is at least an Intel 386 microprocessor with 25 MHz, 12 MB of RAM and a hard drive with 75 MB of free disk space. For the RISC architecture is suitable for example one Mips R4000 processor, at least 16 MB of RAM and 92 MB free hard disk space.
Windows NT 3.1 Advanced ServerThe first Windows NT Server operating system was introduced in July 1993. The system requires at minimum a 486 processor with 25 MHz, 16 MB RAM and 90 MB hard disk space. For a RISC-based system are 16 MB RAM with 110 MB of free hard disk capacity recommended. The scalability is increased to up to 4 processors, and each application can be served with up to 4 GB of virtual memory. The manageable disk storage can now span multiple terabytes.
The operating system is based on the Client-Server concept and adds support for various RAID levels. The networking capabilities allow the Global Network Login for access to network-wide resources, providing of Connectivity Services for Macintosh and RAS as well as integration into existing network structures.