In Operating Systems, Preemptive Scheduling is a type of CPU scheduling method in which the CPU is allocated for a limited time to a given process. In contrast, Non-Preemptive Scheduling is the scheduling technique in which the CPU is allocated to a process and hold by it till the process ... Read More

Testing is an important stage in the process of delivery of any software product. It not only validates the quality of a software product but also provides an opportunity to the developer to improve its product. There are various types of software testing which are carried out to test different ... Read More

Performance testing is a type of testing that is performed for verifying the performance of a system and to monitor the behavior of the system under stress. It tells about the reliability, stability, response time, and scalability of a system. On the other hand, load testing is primarily aimed for ... Read More

Both paging and swapping are important concepts in operating systems that place a process in the main memory for its execution, but they are quite different from each other in many aspects. Read this article to learn more about paging and swapping and their specific characteristics. What is Paging? In ... Read More

MMU and MPU are memory management hardware used by the CPU. The set of all the logical addresses generated by a program is referred to as a "logical address space". The set of all the physical addresses corresponding to these logical addresses is referred to as a "physical address space". ... Read More

In database management systems (DBMS), there are two terms namely mirroring and replication which are related to copying of data. Mirroring is defined as the process of copying a database to another location, while replication is defined as the process of copying the database objects from one database to another. ... Read More

We can define an address mode as the way in which the memory address of an operand is specified in a computer instruction. Address modes specify how the location of an operand in memory is represented in an instruction. Operations are performed with the help of some data and the ... Read More

Every programming language has keywords and identifiers. Both keywords and identifiers can be processed by a compiler, however they are quite different from each other. The basic difference between the two is that keywords are the reserve words which are predefined and have a special meaning in the language, whereas ... Read More

In computer programming, Inheritance and Polymorphism are two important concepts. The most basic difference between inheritance and polymorphism is that "inheritance" is a concept of objectoriented programming that allows creating a new class with the help of the features of an existing class, whereas the concept "polymorphism" represents multiple forms ... Read More

An Identifier is a name assigned to an entity in a computer program so that it can be identified distinctly in the program during its execution. On the other hand, a variable is a name assigned to a memory location that stores a value. Read this article to learn more ... Read More