In a computer system, memory devices are used to store data and information. Computer memories are mainly classified into three types – primary memory, secondary memory, and cache memory. The primary memory is further classified into two types namely – RAM and ROM, where RAM is further subdivided into two types, i.e., SRAM and DRAM. Read through this article to find out how an SRAM is different from a DRAM. What is RAM? RAM stands for Random Access Memory. It is the internal memory of the CPU for storing data, program, and program result. It is a read/write memory ... Read More

A program is a passive entity that has a set of codes and instructions required to accomplish a task. A process, on the other hand, is an active entity of a program that is started with the execution of the program. Thus, the process is started by the program, once it is executed. The instructions of the program are then executed by the process. Read through this article to find out more about programs and processes and how they are different from each other. What is a Program? A program is a set of instruction codes that has been designed ... Read More

In computers and other electronic devices, there is an internal storage device called ROM (Read Only Memory). It is a storage device used to store data and instructions permanently. Till date, there are several types of ROMs available such as PROM, EPROM, and EEPROM. There are several differences among all these types of ROMs depending on the manufacturing process, electronic components used, operation, reversibility, etc. In this article, we will discuss the important differences between PROM and EPROM by considering different parameters. But before that, it is important to get an overview of their basics so that it becomes easier ... Read More

In computer parlance, security and protection are the two terms that seem similar at first glance. Therefore, most people use them interchangeably, but both are quite different from each other. In this article, we will highlight how "security" is different from "protection". Basically, the measures to prevent the interference with use of local and physical resources of computer systems provided by the operating system are known as security and protection. One major difference between security and protection is that security deals with the external threats on the information, while protection handles the internal threats on the information. Before going ... Read More

Both multiprogramming and multitasking are the concepts related to the operating systems of computer. It is not a good practice that keeping the CPU occupied for a single task only. Since, there is a considerable difference between the speeds of the CPU and other components of the computer system. This difference increases the CPU idle time and degrades its throughput. Therefore, to overcome this problem, several concepts such as multiprogramming, multitasking, multithreading, etc. have been developed to improve the CPU utilization. In this article, we will discuss the important differences between multiprogramming and multitasking. Let's start with some basics ... Read More

In this post, we will understand the difference between backup and recovery.BackupIt refers to storing a copy of the original data in a separate memory location.It is basically a copy of data that is used to restore the original data in case of a data loss/damage.It is the replication of data.It just keeps one extra copy to ensure data is not lost forever.It helps in giving data protection.It makes the process of data recovery hassle free and easy.It is an affordable process.It is used in production environments.Example - SnapManager helps create a backup of data and everything else in the ... Read More

Both Demand Paging and Segmentation are memory management techniques used in operating systems. In Demand Paging, a page is loaded from the secondary memory into the primary memory, only when it is needed. On the other hand, Segmentation follows a strategy whereby the entire memory space is divided into discrete segments and each segment is allocated to a process. Read through this article to find out more about Demand Paging and Segmentation and how they are different from each other. What is Demand Paging? As the name suggests, Demand Paging swaps a page into the main memory only when ... Read More

What is Topology?Network Topology is the way network links and nodes are connected with each other. The physical signal transmission medium is referred to as network topology. On the other hand, "logical network topology" refers to how the data flows through a network among the connected devices, regardless of their physical link.In this article, we will compare and contrast the different features of two network topologies: Star Topology and Ring Topology. Read through this article to find out how Star Topology differs from Ring Topology.What is Star Topology?In a Start topology, a piece of a network is connected to a ... Read More

What is Topology?Network Topology is the way network links and nodes are connected with each other. The physical signal transmission medium is referred to as network topology. On the other hand, "logical network topology" refers to how the data flows through a network among the connected devices, regardless of their physical link.In this article, we will compare and contrast the different features of two network topologies − Star Topology and Mesh Topology. Read through this article to find out how Star Topology differs from Mesh Topology.What is Star Topology?In a Star topology, a piece of a network is connected to ... Read More

As we know in context of computer/system, the main key feature on which the whole performance get dependent is Memory. It is memory and its allocation which make the system to perform fast and efficient. Now on the basis of organizing of this memory in the system, we can distinguish between Simultaneous and Hierarchical Access Memory Organisations.Following are the important differences between Simultaneous and Hierarchical Access Memory Organisations.Sr. No.KeySimultaneous Access Memory OrganisationsHierarchical Access Memory Organisations1DefinitionSimultaneous Access Memory Organisations is the memory organizing technique in which CPU can interact with multiple memory levels at same time and gets data interaction. This ... Read More