No Windows NT is not so, because its not implemented in object oriented language and the data structures reside within one executive component and are not represented... Read more »
For load-time dynamic linking: Load module to be loaded is read into memory. Any reference to a target external module causes that module to be loaded and the references... Read more »
Trapdoor is a secret undocumented entry point into a program used to grant access without normal methods of access authentication. A trap is a software interrupt,... Read more »
Operating system controls and coordinates the use of the hardware among the various applications programs for various uses. Operating system acts as resource allocator... Read more »
Paging is solution to external fragmentation problem which is to permit the logical address space of a process to be noncontiguous, thus allowing a process to be... Read more »
A hard real-time system guarantees that critical tasks complete on time. This goal requires that all delays in the system be bounded from the retrieval of the stored... Read more »
A real time operating system has well defined fixed time constraints. Process must be done within the defined constraints or the system will fail. An example is... Read more »
Thrashing is caused by under allocation of the minimum number of pages required by a process, forcing it to continuously page fault. The system can detect thrashing... Read more »
Fragmentation occurs in a dynamic memory allocation system when many of the free blocks are too small to satisfy any request. External Fragmentation: External Fragmentation... Read more »
DRAM is not the best, but it’s cheap, does the job, and is available almost everywhere you look. DRAM data resides in a cell made of a capacitor and a transistor.... Read more »
Dispatcher module gives control of the CPU to the process selected by the short-term scheduler; this involves: Switching context, Switching to user mode, Jumping... Read more »
Selects from among the processes in memory that are ready to execute, and allocates the CPU to one of them. CPU scheduling decisions may take place when a process:... Read more »
Switching the CPU to another process requires saving the state of the old process and loading the saved state for the new process. This task is known as a context... Read more »
A real time process is a process that must respond to the events within a certain time period. A real time operating system is an operating system that can run real... Read more »
Processor : performs all the functions for a program in execution ie., ALU, MU, CU. Assembler : converts High level to Assembly Language or Low level language. Loader... Read more »
Mutex is a program object that allows multiple program threads to share the same resource, such as file access, but not simultaneously. When a program is started... Read more »
A process is a collection of virtual memory space, code, data, and system resources. A thread is code that is to be serially executed within a process. A processor... Read more »
The process of packaging and sending interface method parameters across thread or process boundaries. Read more »
COM is a specification(Standards). COM has two aspects 1) COM specifications provide a definition for what object is. 2) COM provides services or blue prints for... Read more »
Thread contains ready, running, waiting and dead states. Read more »