What are interrupts
Interrupts are a fundamental mechanism in computer systems that allow the CPU (Central Processing Unit) to temporarily pause its current execution to handle an external event or request. These external …
What is DMA? Explain its working
DMA, which stands for Direct Memory Access, is a feature in computer systems that allows peripheral devices (such as storage controllers, network adapters, and sound cards) to transfer data to …
What is the difference between stacks or queues
Stacks and queues are both linear data structures used to manage and store collections of items. However, they differ in their fundamental principles, order of operations, and use cases. Here …
explain function pointer in c
A function pointer in C is a variable that stores the address of a function rather than a typical data value. This allows you to call a function indirectly through …
What is inheritance In C
Inheritance is a fundamental concept in object-oriented programming that allows you to create a new class (the derived class or subclass) based on an existing class (the base class or …
override keyword in cpp
In C++, the override keyword is used to indicate that a function in a derived class is intended to override a virtual function declared in a base class. This keyword …
virtual keyword in cpp
In C++, the virtual keyword is used in the context of object-oriented programming to specify that a base class function can be overridden by a function with the same name …
What is polymorphism give an example
Polymorphism is a fundamental concept in object-oriented programming that allows objects of different classes to be treated as objects of a common base class. It enables you to write more …
Why there is a need for Logical Addresses In OS
Memory Isolation: Logical addresses provide memory isolation between processes. Each process operates in its own logical address space, preventing one process from directly accessing or modifying the memory of another …
Difference between CPU and GPU
CPUs (Central Processing Units) and GPUs (Graphics Processing Units) are both types of processors, but they have different architectures, designs, and functions. Here are the key differences between CPUs and …