c language tutorial for beginners | how to study c programming language | c programming blog

Introduction To C language Reading, processing and writing of data are the three essential functions of a computer Program.Most programs take some data as input and  display the processed data often known as information or results.There are two methods of providing data to the program data to the  program variables.One...

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Google Home Mini

Google Home Mini  Google Home Mini is Like Voice Personal Assistant if we Ask the Questions it will reply as your Question it will Searches from the Internet and right answer for question it has to Connect to Wifi  and should be integrated with Smart phone android app .Once we Integrated with app it Should be Interrogated with Same Wifi Mobile and Google Home.It...

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Campus Interviews in TCS in Vijaynagram at Visakhapatnam Area in Andhra Pradesh

TCS Company Conducting Campuses interviews in Vijaynaran Bhogapuram Visakhpatnam Ar...

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How to Block the Unwanted E Mails

How to Block the Unwanted E MailsIf we want to block the un wanted emails from Gmail we have login to mail id and select which maild to want to block go for the Setting Gear Icon select the settings then it will open another window then go for Filters and Blocked address Click on Create New Filter and fill all the details and click on create filter then it will directly got the spam folder. &nb...

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How to overcome blue screen errors

Over come blue Screen errors If we get the blue screen errors when we working with pc suddenly,then we have find errors in our hardware and software first we have check in the software drivers first in insall all the drivers including graphic drivers also and install all the drivers again problem will be sloved if it is getting again then we have go check in that ram,first dos based ram checking software will be avaliable in the internet download...

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How to hide hardisk drive

How to hide Hardisk driveWe can hide the hardisk if anybody don't want to see the particular drive or data without effecting any data.First of all close all the files and go to desktop,Right click on my computer and select the option Disk management it will show all the drives select the drive and Right click on select change letter and path and select remove drive letter it will hide the the drive if u want again retrieve the drive then assign the...

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Issues in Paging and Virtual Memory

Issues in Paging and Virtual MemoryPage Table Structure. Where to store page tables, issues in page table design.In a real machine, page tables stored in physical memory. Several issues arise: How much memory does the page table take up?How to manage the page table memory. Contiguous allocation? Blocked allocation? What about paging the page table?On TLB misses, OS must...

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Implementing Synchronization Operations

Implementing Synchronization OperationsHow do we implement synchronization operations like locks? Can build synchronization operations out of atomic reads and writes. There is a lot of literature on how to do this, one algorithm is called the bakery algorithm. But, this is slow and cumbersome to use. So, most machines have hardware support for synchronization - they provide...

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Processes And Threads

Processes And ThreadsI. A process is an execution stream in the context of a particular process state.  1. An execution stream is a sequence of instructions.  2. Process state determines the effect of the instructions. It usually      includes (but is not restricted to):          Registers         ...

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Operating System Potpourri

OS PotpourriWhen does a process need to access OS functionality? Here are several examplesReading a file. The OS must perform the file system operations required to read the data off of disk.Creating a child process. The OS must set stuff up for the child process.Sending a packet out onto the network. The OS typically handles the network interface.Why have the OS do these...

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Introduction To Paging

Introduction To PagingBasic idea: allocate physical memory to processes in fixed size chunks called page frames. Present abstraction to application of a single linear address space. Inside machine, break address space of application up into fixed size chunks called pages. Pages and page frames are same size. Store pages in page frames. When process generates an address,...

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Introduction To Memory Management

Introduction To Memory ManagementPoint of memory management algorithms - support sharing of main memory. We will focus on having multiple processes sharing the same physical memory.Key issues:Protection. Must allow one process to protect its memory from access by other processes.Naming. How do processes identify shared pieces of memory.Transparency. How transparent is sharing....

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Operating System Dead Lock

Dead LockYou may need to write code that acquires more than one lock. This opens up the possibility of deadlock. Consider the following piece of code:         Lock *l1, *l2;         void p() {           l1->Acquire();           l2->Acquire();     ...

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Thread Creation, Manipulation and Synchronization

Thread Creation, Manipulation and SynchronizationWe first must postulate a thread creation and manipulation interface.Will use the one in Nachos:         class Thread {           public:             Thread(char* debugName);             ~Thread(); ...

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