The primitive difference between the QAM and QPSK is that the spectral width of QAM is narrower than the QPSK. Furthermore, the BER (Bit Error Rate) of the QAM is higher than the QPSK. Previously, to transfer the digital data we used analog transmission medium. Hence, we required a technology which can convert the digital data into analog signals, such as employed in the telephone networks. So, to perform such task the modem (modulator/demodulator) is used where the modulation and demodulation … [Read more...]
Difference Between SONET and SDH
SONET and SDH are the interfacing optical technologies mainly used in telephone networks. These technologies are very similar; however, there exist minor differences between them. The first point based on which SONET and SDH can be distinguished is the origin of the standards SONET is developed by ANSI and can carry payloads for the North American PDH hierarchy. On the other hand, SDH was developed by ITU-T (international standard). Furthermore, the frame format of SONET usually utilizes v3 … [Read more...]
Difference Between CIDR and VLSM
CIDR and VLSM are the terms explicitly used at the time of designing a network where CIDR is used for merging the routes in order to decrease the routing information carried by the core routers. On the contrary, VLSM facilitates in optimizing the available address space. CIDR is just opposite of VLSM, where it describes rules for referencing set of networks with a single route statement. Conversely, VLSM defines rules for subdividing the networks. Content: CIDR and VLSM Comparison … [Read more...]
Difference Between PGP and S/MIME
The PGP (Pretty Good Privacy) and S/MIME (Secure Multipurpose Internet Mail Extensions) are the security protocols designed to serve for securing the electronic mail facility. The prior difference between these protocols lies within their security mechanism type of algorithms used. PGP uses either digital certificates or key rings for building trust between the users. In contrast, S/MIME employs encryption, message digest and digital signatures. We are aware about the electronic mail services … [Read more...]
Difference Between Backup and Recovery
Backup and Recovery are terms related to data protection. An efficient backup and recovery schemes are crucial for any organization for protecting the valuable data of its organization. However, backup and recovery are different concepts where a backup is storing a copy of the entire data of the database or database onto storage devices. Conversely, recovery is the technique of restoring the lost data from the storage mediums which have been backed up. Content: Backup Vs Recovery … [Read more...]
Difference Between Full Virtualization and Paravirtualization
The Virtualization enables one computer to carry out the job of multiple computers, with the help of sharing resources of single hardware across several environs. The full virtualization and paravirtualization are categorized under CPU virtualization. These are mainly distinguished by the fact that in full virtualization the unmodified OS is not awared about the virtualization and it uses binary translation to trap the OS calls at the run time. Conversely, in paravirtualization, the hypercalls … [Read more...]
Difference Between Cloud Computing and Virtualization
Cloud computing and virtualization are very closely related terms where the virtualization drives single resource behaves as many whereas cloud computing enables distinct departments and companies retrieve a single pool of spontaneously provisioned resources. Virtualization is the primary technology used to make the cloud computing functional. However, it is different from cloud computing which we have described below in detail. Content: Cloud Computing Vs Virtualization Comparison … [Read more...]
Difference Between Brain and Computer
The differentiation between brain and computer is very useful in the field of cognitive science and artificial intelligence where the human brain is used to model the artificial neural network to create an expert system. The prior difference between the brain and the computer is that the brain can work without data, but computers require a minimum amount of data. A brain is an innovative and creative organ, but the computer cannot create a new thing without any support, it would need some … [Read more...]
Difference Between Cohesion and Coupling
Cohesion and coupling are used as the categorisation method to specify the interactions within and between the software components. We know that software could contain thousands of lines of code or even more than that, which could result in an unanticipated increase in the code complexity. To stabilize the code complexity, the concept of modularisation is introduced. The modularization is the method of splitting the software into smaller isolated pieces known as modules. Cohesion is used to … [Read more...]
Difference Between VGA and SVGA
For displaying the content over the various display devices, a various organization has developed the display standards. VGA and SVGA fall in the category of these standards used for channelling the video data to a suitable visual output. VGA (Video Graphics Array) supports smaller resolution videos and images while SVGA is a standard provide large resolution for the displaying the content. Content: VGA and SVGA Comparison Chart Definition Key Differences … [Read more...]
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