Found 496 Articles for Computer Engineering

Centralized Version ControlCentralized Version Control is a version control system using server/client model and server contains all the history of source code.Distributed Version ControlDistributed Version Control is a version control where each client can have same copy of source code as server has and both server and client maintain history of source code.Following are the important difference between Centralized Version Control and Distributed Version Control.Sr. No.KeyCentralized Version ControlDistributed Version Control1WorkingIn CVS, a client need to get local copy of source from server, do the changes and commit those changes to centeral source on server.In DVS, each client can have a ... Read More

The terms web browser and web server are very common in the field of computer science and Internet, however people often get confused between the two. The most basic difference between a web browser and a web server is that a web browser is an application software which is used to browse and display webpages available over the Internet, whereas a web server is a software hosted on a dedicated computer which provides these documents when requested by web browsers. Read through this article to know more about web browsers and web servers and how they are different from each ... Read More

Both RDBMS and HBase, both are database management systems. RDBMS uses tables to represent data and their relationships. HBase is a column-oriented dbms and it works on top of Hadoop Distributed File System (HDFS).Following are the important differences between RDBMS and HBase.Sr. No.KeyRDBMSHBase1DefinitionRDBMS stands for Relational DataBase Management System.HBase has no full form.2SQLRDBMS requires SQL, Structured Query Language.HBase does not need SQL.3SchemaRDBMS has a fixed schema.HBase has no fixed schema.4OrientationRDBMS is row oriented.HBase is column oriented.5ScalablityRDBMS faces problems in scalablity.HBase is highly scalable.6NatureDBMS is static in nature.HBase is dynamic in nature.7Data RetrievalRDBMS data retrieval is slow.HBase data retrieval is fast.8RULERDBMS ... Read More

RDBMS and OODBMS are database management systems. RDBMS uses tables to represent data and their relationships whereas OODBMS represents data in form of objects similar to Object Oriented Programming.Following are the important differences between RDBMS and OODBMS.Sr. No.KeyRDBMSOODBMS1DefinitionRDBMS stands for Relational DataBase Management System.OODBMS stands for Object Oriented DataBase Management System.2Data ManagementData is stored as entities defined in tabular format.Data is stored as objects.3Data ComplexityRDBMS handles simple data.OODBMS handles large and complex data.4TermAn entity refers to collection of similar items having same definition.An class refers to group of objects having common relationships, behaviors and properties.5Data HandlingRDBMS handles only data.OODBMS handles ... Read More

Both Bluetooth and ZigBee are wireless technologies that are widely used to send and receive data wirelessly using radio signals. Bluetooth is a wireless technology that is used to connect devices in short range, whereas ZigBee is wireless technology standard for personal area networks that uses low-power digital radio waves.Go through this article to find out more about the features of Bluetooth and ZigBee and how they are different from each other.What is Bluetooth?Bluetooth was created under the IEEE 802.15.1 standard, which is used for wireless communication via radio transmissions. Bluetooth was first introduced in 1994 as a wireless replacement ... Read More

Both Bluetooth and UWB are wireless technologies that are widely used to send and receive data wirelessly using radio signals. Bluetooth is a wireless technology that is used to connect devices in short range, whereas UWB is wireless network technology that can carry an extensive range of frequency bands while using very little power.Go through this article to find out more about the features of Bluetooth and UWB and how they are different from each other.What is Bluetooth?Bluetooth was created under the IEEE 802.15.1 standard, which is used for wireless communication via radio transmissions. Bluetooth was first introduced in 1994 ... Read More

Both WiFi and Bluetooth are wireless technologies that are widely used to send and receive data wirelessly using radio signals. WiFi is for high-speed Internet access that connects nearby devices with each other and share the Internet via hotspots, whereas Bluetooth is used for connecting devices in short range.Go through this article to find out more about the features of WiFi and Bluetooth and how they are different from each other.What is WiFi?WiFi stands for Wireless Fidelity. It defines any network based on the 802.11 standards, allows computers and devices with the required wireless capacity to communicate via radio waves ... Read More

WiFi and LiFi used to send and receive data wirelessly. WiFi uses Routers and Radio Frequency whereas LiFi uses LED bulbs and Light signals to transfer and receive data.Following are the important differences between WiFi and LiFi.Sr. No.KeyWiFiLiFi1DefinitionWiFi stands for Wireless Fidelity.LiFi stands for Light Fidelity.2InventedWiFi was invented by NCR corporation on 1991.LiFi was coined by Prof. Harald Haas in 2011.3OperationWiFi transmits data using radio waves using WiFi router.LiFi transmits data using light signals using LED bulbs.4Device ComplianceWLAN 802.11/b/g/n/ac/d standard compliant devices.IrDA compliant devices.5Data Transfer SpeedWiFi transfer speed ranges from 150 Mbps to 2 Gbps.LiFi transfer speed is about 1 ... Read More

Local Area Network (LAN) is used to connect a group of networked devices to allow communication between them, whereas Virtual LAN is used to enhance the performance of multiple LANs.Read through this article to find out more about LAN and VLAN and how they are different from each other.What is LAN?A local area network (LAN) is a network limited to a particular geographic area. A switch, or stack of switches, connects a group of computers and devices using the TCP/IP protocol's private addressing mechanism.Private addresses are distinct from those of other machines on a local network. Routers are used to ... Read More

OOPOOP, refers to Object Oriented Programming and its deals with objects and their properties. Major concepts of OOPs are −Class/objectsAbstractionEncapsulationPolymorphismInheritancePOPPOP, refers to Procedural Oriented Programming and its deals with programs and functions. Programs are divided into functions and data is global.Following are the important differences between OOP and POP.Sr. No.KeyOOPPOP1DefinitionOOP stands for Object Oriented Programing.POP stands for Procedural Oriented Programming.2ApproachOOP follows bottom up approach.POP follows top down approach.3DivisionA program is divided to objects and their interactions.A program is divided into funtions and they interacts.4Inheritance supportedInheritance is supported.Inheritance is not supported.5Access controlAccess control is supported via access modifiers.No access modifiers are ... Read More