Basic CS-Operating System [3i Infotech Placement]: Sample Questions 71 - 72 of 89

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Question 71

Operating System
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Describe in Detail

Essay▾

What are SDKs and DDKs? Name an operating system that includes this feature.

Explanation

Understanding of Device Driver
  • SDKs or Software Development Kits are a set of programs, DLLs and related files for developing a new software or hardware driver or to update legacy application driver for a newer operating system.
  • Used by device manufacturers and software application developers.
  • Device Driver Kits or DDKs, are equivalent to SDKs for writing device drivers.
  • They offer development environments for window device drivers for any type of device.
  • Microsoft released it՚s first DDK for first popular desktop GUI OS- Windows 3.0.

Question 72

Operating System
Edit

Describe in Detail

Essay▾

What is Executive in Windows NT?

Explanation

  • Executive is a collection of modules within the Microsoft Windows NT operating system run in kernel mode providing process, memory and object management, thread scheduling, interrupt processing, security.

Three Component of Window NT Executive

  • Executive services
    • Managers and device drivers
  • Microkernel
    • OS services, thread scheduling and interrupt handling
  • HAL
    • Hardware abstraction layer isolates hardware differences from NT allowing it to work on different platforms.
Three Component of Window NT Executive

Components under Window NT Executive

  • I/O Manager
  • Object manager
  • Security reference monitor
  • Process manager
  • Local procedure call facility
  • Remote procedure call facility
  • Virtual memory manager
  • Win 32k Window manager and GDI
  • Hardware device drivers

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