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MCA Articles
Page 5 of 94
What is Interprocess Communication?
Interprocess communication is the mechanism provided by the operating system that allows processes to communicate with each other. This communication could involve a process letting another process know that some event has occurred or the transferring of data from one process to another.A diagram that illustrates interprocess communication is as follows −Synchronization in Interprocess CommunicationSynchronization is a necessary part of interprocess communication. It is either provided by the interprocess control mechanism or handled by the communicating processes. Some of the methods to provide synchronization are as follows −SemaphoreA semaphore is a variable that controls the access to a common resource ...
Read MoreComputer System Architecture
A computer system is basically a machine that simplifies complicated tasks. It should maximize performance and reduce costs as well as power consumption. The different components in the Computer System Architecture are Input Unit, Output Unit, Storage Unit, Arithmetic Logic Unit, Control Unit etc.A diagram that shows the flow of data between these units is as follows −The input data travels from input unit to ALU. Similarly, the computed data travels from ALU to output unit. The data constantly moves from storage unit to ALU and back again. This is because stored data is computed on before being stored again. ...
Read MoreSemaphores in Operating System
Semaphores are integer variables that are used to solve the critical section problem by using two atomic operations, wait and signal that are used for process synchronization.The definitions of wait and signal are as follows −WaitThe wait operation decrements the value of its argument S, if it is positive. If S is negative or zero, then no operation is performed.wait(S) { while (S
Read MorePrivate Bytes, Virtual Bytes, Working Set
Memory management is a critical aspect of computer systems that directly impacts their performance and stability. Within memory management, several terms come into play, including private bytes, virtual bytes, and working sets. In this article, we will embark on a comprehensive exploration of these fundamental concepts, unraveling their intricate meanings, contrasting characteristics, and utmost significance within the realm of memory management. When delving into the realm of comprehending memory usage, one must possess a profound acquaintance with an array of memory metrics. Private bytes, virtual bytes, and working sets emerge as quintessential gauges employed for meticulously scrutinizing memory consumption across ...
Read MoreProcess Scheduler: PCBs and Queueing
In the realm of operating systems, process scheduling plays a vital role in achieving efficient task execution. A key aspect of process scheduling is the management of Process Control Blocks (PCBs) and the utilization of various queueing techniques. This article explores the significance of PCBs and queueing in the process scheduler, highlighting their role in optimizing system performance. Process Control Blocks (PCBs) Definition and Purpose The successful operation of an operating system rests on its ability to use the data structure known as a Process Control Block (PCB) effectively. PCBs allow for efficient storage and management of process related information. ...
Read MoreProcess-Based and Thread-Based Multitasking
Multitasking underscores the versatility inherent in modern-day OSes that empowers computers with concurrent task handling capabilities. Process-based or thread-based multitasking represents efficient resource consumption strategies that positively impact overall system performance levels. While our article focuses primarily on examining process-oriented vs thread-oriented approaches' constituent elements thoroughly we hope to contextualize some finer nuances associated with each methodology's allocated uses cases within our discourse today concerning Operating Systems advancements widely adapted across contemporary environments worldwide at present times worldwide in digital life today. Process-Based Multitasking Definition and Purpose Process-based multitasking involves the execution of multiple processes concurrently. Each process operates independently ...
Read MoreProcess Contention Scope vs System Contention Scope
Process Contention Scope and System Contention Scope are two essential concepts in computer systems that deal with resource contention. Within this insightful piece, we shall delve into the intricacies surrounding the definitions, significance, illustrative instances, and disparities encompassing these two realms. Understanding their distinctions can help optimize system performance and ensure efficient resource utilization. Resource contention occurs when multiple processes or components compete for the same resources simultaneously. This contention can lead to reduced performance, increased latency, and even system failures. To address contention effectively, it is crucial to understand the different scopes at which contention can occur. Process Contention ...
Read MoreHow to Set Up a VoIP Phone at Home?
If you want to save money on your phone bills, setting up a VoIP phone at home is a great alternative. VoIP, or Voice over Internet Protocol, is a technology that enables phone conversations to be made over the internet. Not only is VoIP cheaper than traditional phone services, but it also delivers superior call quality and a range of innovative capabilities. We'll guide you through the steps of establishing a VoIP phone at home in this article. Step 1: Selecting a VoIP Service Provider The first step in installing a VoIP phone at home is selecting a VoIP service ...
Read MoreHow to Read a Traceroute?
Traceroute is a robust network diagnostic tool that assists you in analysing network performance and diagnosing network issues. You may map out the path that your network traffic travels from your computer to a remote server using traceroute, and find any bottlenecks or other difficulties along the way. Recognizing Traceroute Before learning how to interpret a traceroute, you should first grasp how it works. When you perform a traceroute, it transmits data packets with increasing time-to-live (TTL) values to the destination server. Each router along the way decrements the TTL value, and if it reaches zero, the router sends an ...
Read MoreFibre Channel Protocol
Fibre Channel Protocol (FCP) is a communication protocol designed to provide fast and dependable data transfers between servers and storage devices in storage area networks (SANs). History of FCP FCP was first introduced in the early 1990s as a outcome of a deal between the tech giants among IBM, HP, and Sun Microsystems. The protocol was designed to improve upon the limitations of previous communication protocols used in SANs, such as SCSI, and to enable higher-speed data transfers. How FCP Works As mentioned, FCP is a layered protocol that operates at the transport and session layers of the OSI model. ...
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