In a computer system, power supply or power supply unit is a hardware component that supplies required electrical power to other components of the computer system. The power supply unit converts a 220 V AC (Alternating Current) supply into a low voltage DC (Direct Current) supply. The major function that a computer power supply unit performs are − Rectification − Conversion of alternating current supply into direct current supply. Voltage transformation − Decreases the high AC voltage into low voltages. Voltage regulation − Regulates the output voltage to make it constant even when the input voltage is fluctuating. ... Read More

In a computer system, motherboard is a crucial part of the system. This is because, the complete electronic circuit of the computer system is designed on it. Motherboard includes several electronic circuits and slots for connecting various system components like RAM, HDD, CPU, etc. At present, there are several types of motherboards available in market. In this article, we will discuss the two important types of motherboards namely, AT motherboard and ATX motherboard, and the important differences between them. So, let us start with a basic introduction of AT and ATX motherboard. What is AT Motherboard? AT Motherboard stands ... Read More

Introduction Deadlock prevention is a technique used in computer science to avoid situations where multiple processes or threads are blocked and unable to proceed because they are waiting for each other to release resources that they need to complete their tasks. Deadlocks can be detrimental to the performance of a system and can cause significant delays in completing tasks. To prevent deadlocks, various techniques such as resource allocation graph, preemptive scheduling, and detection and recovery are used. Each of these techniques helps in ensuring that resources are used efficiently and prevent situations where a deadlock may occur, thereby ensuring optimal ... Read More

Introduction Deadlock ignorance in operating systems occurs when potential deadlocks are overlooked or not appropriately managed. It is a significant issue as deadlocks can cause system crashes, data loss, and decreased performance, leading to lost productivity and reduced profitability. Deadlock ignorance can result from various factors, including system complexity, lack of awareness or education, and organizational priorities. It is important for system administrators and developers to understand the potential sources of deadlock and implement appropriate mechanisms for managing it. Failure to do so can have severe consequences for operating systems and the organizations that rely on them. Definition of deadlock ... Read More

In complex systems involving multiple processes and shared resources, the potential for deadlocks arises when processes wait for each other to release resources, causing a standstill. The resulting deadlocks can cause severe issues in computer systems, such as performance degradation and even system crashes. To prevent such problems, the technique of deadlock avoidance is employed. It entails scrutinizing the requests made by processes for resources and evaluating the available resources to determine if the grant of such requests would lead to a deadlock. In cases where granting a request would result in a deadlock, the system denies the request. Deadlock ... Read More

Introduction Concurrency processing is the ability of an operating system to execute multiple tasks simultaneously, allowing for efficient utilization of resources and improved performance. In today's computing environment, with the availability of multi-core CPUs and high-speed networking, concurrency processing has become increasingly important for operating systems to meet the demands of users. Definition of concurrency processing Concurrency processing, also known as concurrent processing, refers to the ability of an operating system to execute multiple tasks or processes simultaneously, allowing for efficient utilization of resources and improved performance. It involves the parallel execution of tasks, with the operating system managing and ... Read More

In digital systems, several types of storage devices are used to store data and information in digital form. DVD, stands for Digital Versatile Disk, is a type of optical storage device that uses laser technology to read/write data. Based on the nature, DVDs are classified into the following three main types − DVD ROM DVD-R DVD-RW Read this article to learn how the DVD-R format is different from DVD-RW. Let's start with some basics of DVD R and DVD RW. What is DVD-R? DVD-R stands for Digital Versatile Disk Recordable. DVD-R is a type of DVD which is ... Read More

In computers and any other computing device, the processor is the most significant component of the system as it performs the most crucial task, i.e. processing. These days, we have several types of processors such as single core processor, dual core processor, quad processors, hexa core processor, octa core processor, etc. To understand the meaning of “core” in processor, consider the example of a highway with heavy traffic. If the highway have only one-way mode, then all the vehicles should pass one by one in a queue. Therefore, the taken to reach the destination by a vehicle will be more. ... Read More

CD-ROM and Magnetic disks are the types of permanent (non-volatile) storage media used in computers and many other digital devices to store data and information in digital form. In this article, we will discuss the important differences between CD-ROM and magnetic disks. The most fundamental difference between CD-ROM and magnetic disks is that CD-ROM is a type of optical storage device, whereas magnetic disks, as the name implies, be the type of magnetic storage device. Before discussing the differences between CD-ROM and magnetic disks, let us first know a bit about them individually. What is a CD-ROM? CD-ROM stands for ... Read More

The Excel sheets where we can put some restrictions on the sheet are known as "protected sheets." In Excel, you may want to copy protected data to another sheet or within the same sheet at times. If we try to copy the data directly, then Excel will not allow us to copy the data. But we can use the tricks given in this tutorial to copy the data from a protected sheet. Read this tutorial to learn how we can copy data from a protected sheet in Excel. We can solve this task using these two methods. The first method ... Read More