Using the CERN generic Windows infrastructure in a specific control environment

CERN has a large Windows 95/NT infrastructure with more than 3500 PCs connected that is used as one of the main information services for the laboratory. This infrastructure is used for a wide set of services, including Office Automation, Computing Aided Engineering, Calculations, Software Development, and ... controls. This paper will describe the CERN generic infrastructure for Windows 95 and Windows NT and then give several examples of PC control applications and future directions. The implementation of an object oriented device server based on Windows NT and ActiveX in the CERN ISOLDE-REX experiment will be reported

Дослідження ефективності інтеграції програмних засобів захисту з ОС Windows XP/2000/NT на різних рівнях мережної архітектури

Проаналізовано мережну архітектуру ОС Windows XP/2000/NT. Визначено можливості інтеграції (встроювання) програмних засобів захисту на різних рівнях мережної архітектури. Порівняно ефективність варіантів їх реалізації за допомогою механізмів, які надає ОС Windows XP/2000/NT. Наведено вимоги до програмного засобу захисту та рекомендовані рівні його реалізації. Запропоновано структуру та варіант реалізації програмного засобу захисту.Windows XP/2000/NT network architecture is analyzed. The opportunities of security software integration (embedding) at different network architecture levels are determined. The comparison of the effectiveness of their realization variants with the help of different mechanisms which gives Windows XP/2000/NT is done. The requirements to security software and recommended levels of their realization are given. The structure and a variant of security software realization is offered

CDEV-NT: Porting the Control Device Interface to Windows NT

In recent years the rapid increase in processing power of the personal computer has made it a significant competitor to high-end workstations for accelerator control and experimental physics applications. When the decreasing price of the PC and the availability of inexpensive commercial software is also considered, NT becomes a very attractive alternative to traditional UNIX systems. In order to simplify the integration of Personal Computers into our operating environment, we have ported the Control Device (CDEV) Interface to Windows NT. By supporting CDEV on this platform, we can provide routine access to our existing control system. Additionally, CDEV allows us to create an interface from our UNIX workstations to Windows NT applications (such as databases) that are significantly less expensive on the PC. This paper details the pitfalls we encountered during the software migration and will provide a direct comparison between the performance of CDEV applications on UNIX and NT. P articular attention is paid to network performance, which represents most of the overhead of this transition

CPU reservations and time constraints: implementation experience on windows NT

Journal ArticleThis paper presents an implementation of scheduling abstractions originally developed for the Rialto real-time operating system within a research version of Windows NT called Rialto/NT. These abstractions, CPU Reservations and Time Constraints, as described in the 1997 SOSP paper [Jones et al. 97], are intended to allow: (1) activities to obtain minimum guaranteed execution rates with application-specified reservation granularities via CPU Reservations, and (2) applications to schedule tasks by deadlines via Time Constraints, with on-time completion guaranteed for tasks with accepted constraints. The Rialto/NT scheduler differs from the original Rialto scheduler in several key respects. First, it has been extended to schedule multiprocessors-this is the primary new intellectual contribution of this work. It has been adapted to operate with operating system clock services that only provide timing interrupts at regular periodic intervals measured in milliseconds, rather than being able to schedule clock interrupts at arbitrary sub-millisecond points of time. It coexists with the existing Windows NT scheduler, allowing it to schedule time not scheduled by itself. Finally, it has been implemented in a particularly non-intrusive manner, using rather than replacing the existing Windows NT priority-based scheduler. Results presented will demonstrate that CPU Reservations and Time Constraints can be effectively implemented on multiprocessors. We will also describe the implementation techniques chosen and tradeoffs made as a result of implementing within Windows NT. Finally, we will present performance results and execution traces

Returning Thermal Advantage Instrument’s DSC 2920 and SDT 2960 to Functioning Order

Thermal Advantage (TA) Instruments DSC 2920 and SDT 2960 require a computer running Windows NT 2000 and an Industry Standard Architecture (ISA) expansion card to output and record data. Due to the lack of availability for this older software and hardware, a virtual machine running Windows NT 2000, using Oracle VM VirtualBox as the virtualization software, and a GPIB-USB-SH converter were used to allow a modern computer to interface with the DSC an SDT. The Windows NT virtual machine ran the necessary TA software to communicate with the DSC and SDT and USB pass-through was used to allow the virtual machine to see the instruments via the GPIB-USB-SH converter. Both the DSC and SDT successfully communicated and output data to the modern computer

Windows NT Installation

Overview l Salient Features of Windows NT 4.0 » Base Operating System » Important Features l Case Example : Server Based Windows NT 4.0 Installation (Lab