|
Parameter
|
Grid Computing
|
Cloud Computing
|
|
Definition
|
It is a collection of heterogeneous Computers from different locations
to achieve a common goal.
|
It is the delivery of computing as a service rather than a product,
where resources, software, and information are provided to Computers and
Other devices as a utility.
|
|
Platform
|
It makes use of heterogeneous Computers to run.
|
It makes use of Homogeneous computers to run.
|
|
Focused on
|
Intensive Calculus
|
Standard and intensive cloud.
|
|
Visualization
|
Not Much Reliable
|
Reliable
|
|
Performance
|
High
|
Less than Grid
|
|
Research Community
|
Grid is distributed and has multiple user communities and is grouped
in virtual organization.
|
It has generally one research community and a common group of system
administrators that take care of entire domain.
|
Wednesday, July 30, 2014
Difference Between Cloud Computing and Grid Computing
Thursday, June 5, 2014
Difference Between Linux and Windows
|
Parameter
|
Windows
|
Linux
|
|
Introduction
|
It is an Operating System developed by Microsoft and named Windows on November 20, 1985 as a
graphical operating system shell for MS-DOS
|
Linux is a Unix Like Operating System introduced by Linus Torvalds
and was first released on 5 October 1991.
|
|
License Type
|
Proprietary Commercial Software and must have to be Purchased before
using Windows OS.
|
Except Red Hat all versions are free and are distributed under GNU
GPL License.
|
|
File System Supported
|
NTFS,FAT,FAT 32, ISO
9660, UDF,
|
Ext,Ext2, Ext3, Ext3, ReiserFS, FAT, ISO 9660, UDF, NFS, NTFS, JFS, XFS,
Minux
and GmailFS
|
|
Versions
|
Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1 etc.
|
Red Hat, Suse Linux, Debian, Knoppix, Ubuntu etc.
|
Wednesday, June 4, 2014
Difference Between HTML 4 and HTML 5
Parameter
|
HTML
4.01
|
HTML
5.0
|
Doctype Declaration
|
Three Types of <!DOCTYPE> declarations are used in HTML 4.01 and that are:
i) HTML 4.01 Strict ii) HTML 4.01 Transitional iii) HTML 4.01 Frameset |
There is Only one type of <!DOCTYPE> declaration in HTML 5 and that is <!DOCTYPE html>only.
|
Plugin Requirement
|
External Plugins are required to play audio and video files on HTML
4.01.
|
HTML 5 does not require any external plugin to play audio and video
files.
|
Attributes
|
Accept, Accept-charset, Action, Enctype, Method, Name, Target.
|
Accept-charset, Action, Enctype, Method, Name, Target, Autocomplete,
Novalidate.
|
Input Types
|
Button, Checkbox, File, Hidden, Image, Password, Radio, Reset,
Submit, Text.
|
Button, Checkbox, File, Hidden, Image, Password, Radio, Reset,
Submit, Text, Color, Date, Datetime, Datetime-local, email, Month, Number,
Range, Search, Tel, Time, Url, Week
|
Automatic Validation
|
Not Supported in HTML 4.01 and is achieved by other Scripting
Languages.
|
Automatic Filed Validation is Supported in HTML 5.0
|
Sunday, June 1, 2014
Difference Between DBMS and RDBMS
|
Parameter
|
DBMS
|
RDBMS
|
|
Acronym for
|
Data
Base
Management
System
|
Relational
Data
Base
Management
System
|
|
Relation
|
Data is stored in flat file oriented System and no relations are used.
|
It provides facility to create relation between tables.
|
|
Dr. E.F. Codd Rules
|
Only 3 rules, Out of 12, are followed by DBMS. (from Rule 0 to Rule
12)
|
Minimum 6 rules, Out of 12, are followed by RDBS. (from Rule 0 to
Rule 12)
|
|
Data Security
|
It can’t implement constraints in Tables and has less Security. The
ACID (Atomicity,
Consistency,
Isolation
and Durability)
property of the database is ensured by Programmer.
|
It can implement the integrity constraint for the purpose of holding
ACID (Atomicity,
Consistency,
Isolation
and Durability)
property of the database and is much securing than DBMS.
|
|
Generation
|
3GL
|
4GL
|
Wednesday, May 28, 2014
Difference Between Windows 8 and Windows 8.1
|
Parameter
|
Windows
8
|
Windows
8.1
|
|
Definition
|
It is a Personal Computer Operating System Designed by Microsoft and
is preceded by Windows 7 Operating System.
|
It is enhanced version of windows 8 operating system.
|
|
Start
Button
|
Start Button is not Present in Windows 8.
|
Start Button is restored to task bar in Windows 8.1 to open start
screen.
|
|
App Snapping
|
Only two app can be snapped onto a single display.
|
4 Applications can be snapped onto a single display depending upon
screen size.
|
|
Message
App
|
Message App is available in Windows 8.
|
Message is Replaced by Skype, which allows users to accept calls
directly from lock screen.
|
Wednesday, May 21, 2014
Difference Between Database and Data Warehouse
Parameter
|
Database
|
Data
Warehouse
|
Definition
|
Organized Collection of Data is called database.
|
Database of Databases is Called Data Warehouse.
|
Purpose
|
It is designed to allow the definition, creation, querying, update,
administration of data (Transaction Processing).
|
It is a relational database that is designed for query and analysis rather
than transaction processing.
|
Data Type
|
Data stored in Database is up to date.
|
Current and Historical Data is Stored in Data Warehouse.
|
Orientation
|
Transaction Oriented: e.g. Each Transaction of Bank Customer is
written to database and is interpreted as Accounting Database.
|
Subject Oriented: The data in the data warehouse is organized so that
all the data elements relating to the same real-world event or object are
linked together.
|
Tuesday, May 20, 2014
Difference Between Data Mining and Machine Learning
|
Parameter
|
Data
Mining
|
Machine
Learning
|
|
Definition
|
Data mining is a process to extract information from a data set and
transform it into an understandable structure for further use.
|
It is a Technique that concerns the construction and study of systems
that can learn from data.
|
|
Focus
|
It focuses on the discovery of unknown properties in the data.
|
It focuses on prediction, based on known properties learned from
training data.
|
|
Database Size
|
It is an automatic or semi-automatic analysis that is performed on
large quantities of data.
|
It is generally performed on small databases to increase accuracy.
|
|
Types
|
Association Rules
Classification
Clustering
Sequential Patterns
Sequence Similarity
|
Supervised
Un Supervised
Reinforcement
|
Monday, May 12, 2014
Difference Between Blackbox and Whitebox Testing
Parameter
|
Black
Box Testing
|
White
Box Testing
|
Definition
|
It is a Software Testing Technique that examines the functionality of
an Application without peering into its working or coding.
|
It is a Software Testing Technique to test internal structure and
working of an Application Software.
|
Technique Applied in
|
This Technique Applied in Unit, Integration, System and Acceptance
levels of Software Testing Process.
|
This Technique Applied in Unit, Integration and system levels of
Software Testing Process.
|
Test Procedures
|
For Black box Testing Specific knowledge of the application's coding/internal
structure and programming in general is not required.
|
For White box Testing Specific knowledge of the application's coding/internal
structure and programming is required. |
Difference Between MAC and IP address
Parameter
|
MAC
Address
|
IP
Address
|
Acronym for
|
media access control address
|
Internet Protocol Address
|
Used for
|
It is a unique identifier that is assigned to network interfaces for
communicating on the physical network segments.
|
It is a numerical value that is assigned to all the participating
devices in a network. i.e. Servers, Computers, Printers, WAP, Laptops etc.
|
Provided BY
|
It is generally provided by the manufacturer of the NIC cards and is
stored in its hardware.
|
It is provided by the ISP (Internet Service Provider) or by the
Network Administrator. |
Sunday, March 2, 2014
Difference Between OSI and TCP/IP Reference Models
Parameter
|
OSI Reference Model
|
TCP/IP Model
|
Clarification between
Services, Interfaces and Protocols
|
OSI Model clearly distinguishes between Services, Interfaces and
Protocols. Each layer performs some services to upper layers, layer
interfaces tells the processes above it how to access it, and different protocols
are used by different layers as per their needs until a job is not finished.
|
TCP/IP model does not clearly distinguish between Services,
Interfaces and Protocols.
|
Protocol Biasing
|
This model is not biased for a particular set of protocols and was
developed before corresponding protocols invention.
|
This Model was developed after inventing corresponding protocols and
just was description of existing protocols.
|
Layers
|
It is a Seven Layered Model. Which are as follows :
a) Physical
Layer
b) Data
Link Layer
c) Network
Layer
d) Transport
Layer
e) Session
Layer
f) Presentation
Layer
g) Application
Layer
|
It is a 4 Layered Model. Which are as follows:
a) Subnet
Layer
b) Internet
Layer
c) Transport
layer
d) Application
Layer
|
Thursday, February 6, 2014
Difference Between Synchronous TDM and Statistical TDM
Parameter
|
Synchronous
TDM
|
Statistical
TDM
|
Working
|
In Synchronous TDM data flow of each input connection is divided into
units and each input occupies one output time slot.
|
In Statistical TDM slots are allotted dynamically. i.e. input line is
given slots in output frame if and only if it has data to send.
|
No. of Slots
|
In Synchronous TDM no. of slots in each frame are equal to no. of
input lines.
|
In Statistical TDM, No. of slots in each frame are less than the no.
of input lines.
|
Buffers
|
Buffering is not done, frame is sent after a particular interval of
time whether someone has data to send or not.
|
Buffering is done and only those inputs are given slots in output
frame whose buffer contains data to send.
|
Addressing
|
Slots in Synchronous TDM carry data only and there is no need of
addressing. Synchronization and pre assigned relationships between input and
outputs that serve as an address.
|
Slots in Statistical TDM contain both data and address of the
destination. |
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