... In a distributed system, the following things are happened: - All hardware and software components are located remotely; they coordinate and communicate with each other by passing the messages. - Resource sharing is most important aspect of a distributed system. Resources are manages by the servers ...

... Distributed operating system consists of interconnection of different hardware such as multiple processor, networking devices, secondary storage devices etc. To handle these hardware, distributed system uses different platforms as operating systems. Hardware and software requirements for distributed ...

... A distributed system is a collection various different processors that work together but do not shares their own memory or a clock. Each processor has its own local memory. The processors uses communication networks to communicate with each other, like a high-speed buses or telephone lines. In this ...

... When we talk about the pages in a memory model, pages are nothing but the physical memory which is divided into equal sized blocks. These blocks are called as frames and logical memory breaks into equal size of blocks are called as pages. Page sizes are generally between 512 bytes to 4K bytes. Pagin ...

... **Manipulation of the Process Address Space** --------------------------------------------- The region table entry contains the following information: • The inode of the file from which the region was initially loaded. • The type of the region (text, shared memory, private data, or stack). • The ...

... The context of a process made up of three areas are given below: • A user level context that has a Contents of its (user) address space. • A register context that has a contents of hardware registers. • A system context Kernel data structures that related to the process.  User level context cons ...

... UNIX is a powerful operating system which developed in 1960s, and constantly development is going on till today. Many functions can be possible with UNIX operating system like multitasking, multi-user and multiprocessing etc. UNIXprovides the effective way for the system resource management. It can ...

... 1 Describe UNIX in brief with help of structure diagram. Also discuss the UNIX layers. 2 Write a short note on Buffer Cache. Explain its advantages and disadvantages. 3 With any 2 of the scenarios explain the retrieving, reading and writing of the Buffer. 4 Write down algorithm for both reading a ...

... Every file on a UNIX system has a unique inode. The inode has the information necessary for a process to access a file. It contains the information like file ownership, access rights, file size, and location of the file's data in the file system. Processes can access files by a well defined set of s ...