The core difference between the Internet of Things (IoT) and the Internet of Everything (IoE) are given bellow: Internet of Things (IoT) – The term IoT was coined in 1999 to refer to machine-to-machine, or M2M (machine-to-machine), communication. IoT is a computer term that describes the fu.....
DFD (Data Flow Diagram) and ERD (Entity Relationship Diagram) models both show data presentations for identifying data flows. Organizations use such models to effectively communicate within different divisions. Data means information, flow means to maneuver and diagram means a picture to represen.....
Entity Relationship Diagram, also known as ERD, ER Diagram, or ER model, is a type of structural diagram for use in database design. It is a type of flowchart that illustrates how “entities” such as people, objects, or concepts relate to each other within a system. An ERD contains different s.....
Data Flow Diagram (DFD) graphically representing the functions, or processes, which capture, manipulate, store, and distribute data between a system and its environment and between components of a system. The visual representation makes it a good communication tool between User and System designe.....
DAS (Direct Attached Storage) is one amongst the Storage solutions. The server structure of this storage solution is similar to PC structure, external data storage devices (such as disk arrays, optical drives, tape recorders, etc.) are directly articulated within the server bus. The data storage .....
Network-attached storage (NAS) may be a computer data storage server that is dedicated to nothing more than file sharing. Network-attached storage does not provide any of the activities that a server in a server-centric system typically provides, such as email, authentication, or file management......
Direct Attached Storage (DAS) may be a dedicated digital storage device attached directly to the computer accessing it, as critical storage accessed over a computer network (i.e. network-attached storage). Advanced Technology Attachment (ATA), Serial Advanced Technology Attachment (SATA), eSATA, .....
RPC (Remote Procedure Call) and RMI (Remote Method Invocation) are the mechanisms that enable a client to invoke the procedure or method from the server through establishing communication between client and server. The common difference between RPC and RMI is that RPC only supports procedural pro.....
In computing, Remote Method Invocation (RMI) is an API that provides a mechanism to create distributed applications in java. The RMI allows an object to invoke methods on an object running in another JVM. It is a way that a programmer, using the Java programming language and development environme.....
In distributed computing, Remote Procedure Call (RPC) is a protocol that one program can use to request a service from a program located in another computer on a network without having to understand the network’s details. RPC may be a message-passing programming technology developed by Sun .....
While working with the database we often need to delete data, sometimes to create more space, sometimes just remove all data to make the table ready for next day’s transaction or sometimes just selectively remove stale data. SQL provides a couple of handy commands to remove data e.g. truncate, .....
Type casting is that the conversion of one data type to another, done by the programmer using the operator (). So it’s done while the program is designing. The data type are often promoted from lower to higher and vice-versa. Type casting should be avoided at pointers. Type conversion is that t.....