Saturday, September 7, 2013

SCL 2: COMPUTER SOFTWARE

1(A) What is open source software?

Open source software is computer software with its source code made available or in the other hand, its is a broad type of software license that makes its source code available to general public with relaxed or non-existent copyright prohibition. We have the right to study ,change and distribute the software for any purpose and with absolutely free of charge.

1(B)  In your opinion why people prefer source software over proprietary alternatives nowadays?

Reason of people prefering open source software than proprietary software nowadays is that using open software have a lot of advantages and easier to use rather than using proprietary software. The advantages are as following:
Open source software advantages;
  • §  obviously it’s free
  • §  more secured as the code is accessible to everyone(anyone can remove and fix virus rather than waiting for the author to fix it)
  • §  does not depend on the existence of the owner. Even if the owner collapse or fail,the code continues to exist
  • §  the standard and compatibility are open thus it did not have problem of incompatible with formats that exist in proprietary software
  • §  changes and modification allowed

and in the other hand, proprietary software have a lot of disadvantages for the user:
proprietary source software;
  • §  costly as we need to pay to use the software
  • §  prohibited to be distributed
  • §  the code is only accessible to the author or company and certain people thus user have no freedom to remove and fix any problem encounter the source
  • §  have limited compability as it can’t be modified and fix to the original standard
  • §  the code is depend on the existence of the owner as only the owner or company have the license for software



1(C) Name top 5 most popular open source software and compare than with similar proprietary softaware.

TOP 5 MOST POPULAR OPEN SOURCE SOFTWARE
·         VLC Media Player
·         Open Office
·         General Image Manipulation Program(GIMP)
·         Linux
·         Morzilla Firefox

COMPARISON BETWEEN OPEN SOURCE AND PROPRIETARY SOURCE







VLC Media Player
Real Player
Features                                
Support for DVDs of all region, audio and video sync adjustment
Convert, download and share video, advanced CD burning
Sync able hardware
No sync able hardware
IPod, cellphone and Xbox
Supported optical media
CD, DVD, DVD Audio
CD, DVD
Open source
Yes
No(proprietary)
   

                                              





Microsoft Office
Open Office
Definition
A suite of different application, server and service such as Word and Excel
Suite of open source office productivity software suite that contain word processor, spreadsheet,etc
Characteristic
Can open all Microsoft document files such as doc and docx
Can support all Microsoft office files
Component
Word, Excel, Power Point, One Note, etc
Writer, calc, impress, draw, etc
Open Source
No(proprietary)
Yes


                            






General Image Manipulation Program(GIMP)
Adobe Photoshop
User
General use
Preferred by professional photographer 
Availability
Available for Mac, Windows, Linux and Unix
Available for Mac and Windows only
User interface
GIMP UI is composed of multiple window
Made up of a single window that contain child window
Open Source
Yes
No(proprietary)

                                 
 



Linux
Windows
Usage
Can be installed on a wide variety of computer hardware to mainframe and supercomputer
On PC’s server and some phone
Text mode interface
Bourne Again Shell(BASH) is the Linux default shell which can support multiple command interpreters
Use a command shell and each version has a single command interpreter with dos-like command
Threat detection and solution
It is very fast as Linux is community driven and whenever there is any kind of treat, several developers start working on it from different part of the world
After detecting a major threat in Windows OS, Microsoft generally releases a patch that can fix the problem and it can take more than 2/3 months.
Open Source
Yes
No(proprietary)

                      




Mozilla Firefox
Internet explorer
Features
Speed, security, array of features and extension
Address bar provide autocomplete, crash recovery and flexible search option
Operating system
Microsoft Windows, Mac OS X, Linux, Android
Window
Limitation
Not all websites are compatible, memory, downloads will restart if interrupted
Supported only by Windows, no download manager
Open Source
Yes
No(proprietary)

                                                             


By: Fready Luke,Adriana Ali and Marcyril Marcos

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