assignment topic@2017-20 latehar gp

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Paging in OS

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fundamental of programming

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                                                 Fundamentals of Programming       The goal of this article is to provide a simplified mental framework for dealing with all programming languages. In my years of studying different languages alongside with mathematics, I found that they share the same structure. These transferable mental structure have speed up my understanding of any new language I encounter. In the realm of programming, the whole field can be simplified by thinking of two main players, the data type (object of study) and the functions (method). The data are objects upon which we operate our functions to generate another data. The dynamics between the data type and functions allow us to solve complex problems in just a few codes. In learning any new language, approach it by having, at the back of your mind, the d...
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Concept of segmentation in OS

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                 Segmentation :- A process is divided into Segments. The chunks that a program is divided into which are not necessarily all of the same sizes are called segments. Segmentation gives user’s view of the process which paging does not give. Here the user’s view is mapped to physical memory. There are types of segmentation: virtual memory segmentation  process is divided into a number of segments, not all of which are resident at any one point in time. 2 .Simple segmentation  – Each process is divided into a number of segments, all of which are loaded into memory at  run time, though not necessarily contiguously. There is no simple relationship between logical addresses and physical addresses in segmentation. A table stores the information about all such segments and is called Segment Table. Segment Table –  It maps two-dimensional Logical address into one-dimensional Physical address...
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