Did God create Man or Man create God?

DOES GOD EXIST?

Here is one of the most controversial and most debated issue that exist from the day man 'created' god. Many would have asked this question at some point at some time in life- 'Does God Exist?' and they would have got an answer be it either positive or negative. Well in today's world religion plays an important role everywhere be it politics, education, various issues and even terrorism.

Why Religion was founded?

There are many religions although Christianity, Islam, Hinduism, Judaism and Buddhism are the most followed ones. Scientist predict that humans had been living on this planet for about 70,000 to 1,00,000 years. But even the oldest of the religions are not older than 5000 years. What made humans to create religions, create god, rituals, practices, etc. From my understanding and experience HUMANS ALWAYS NEED QUICK SOLUTIONS TO QUESTIONS. The solution need not be perfectly correct but it must be satisfying to all and SIMPLE. There are a lot of unanswered questions about universe, nature, etc. Early humans who were not so intelligent as we are today(This might be true about us too when future generations see us as nomadic) were so much fascinated by all the things around them. To give an explanation they created GOD. Then to add spice to the concept, they brought all the doctrines, practices which we see in today's religions. For every question for which they can't find a solution, they attributed it to majestic effect of GOD, because the solution is SIMPLE and satisfying. However they also made some assumptions. GOD has no beginning, no end, he can simultaneously listen to all of us inside our heads, he answers prayers, he gives us what we ask, he punishes us when we do wrong.. blah blah blah.. By adding more things they gave more and more powers to god. To make things more interesting they created a nemesis for god and its satan or devil or whatever they term it. Every evil or bad thing is associated with him.

Ok now everybody thinks that everything is fine and religions teach morals and are making humans 'good' but now comes the main issue- there is not only one religion alone in this world. There are a lot of them! Religious texts which speak about many things does not convey good about the non followers or followers of other religions. This automatically makes the staunch followers of a religion to develop enmity for other religions. This has even lead to terrorism in today's world! Consider a normal human behaviour- A person forms a group to promote his ideologies. What does he want? More members in his group!! That's what religions wanted to. They wanted to make people follow them. The more the people follow the more stronger they become. Every religion talks about brotherhood among its own religious group members but not on humanity as whole. They consider the non followers as evil, cruel, etc.. This clearly shows the motive. Not to forget about different facts within a religion itself. They have their own fight inside too. Even though there are good things done in the name of religion, i feel that there are more bad things happening and going to happen.

Religion vs Science

Speaking about the relationship between science and religion! One of my favourite topics and every time it makes to laugh at all those folks who say the latest scientific facts had been stated long back in their religious texts. Then why would anyone reinvent and announce them? The time when religions were found, became the dark age of humanity. This was the period in which most scientific practices were abolished, banned since it questioned the religions texts. There were a lot of ancient mathematicians, scientists in ancient Rome, Greece who did a lot of very interesting work and did many inventions but all of a sudden after them there was a long break until Galileo, Copernicus and others showed themselves. Why is this gap? Who created it? The culprit is the religion! Even in the medieval times if someone had to do scientific work they had to go underground to save their heads. This shows the stupidity and arrogance of religious dogma which says it should not be questioned. Simply ridiculous because most of the findings, inventions, discoveries come from questioning which was prohibited by religions. However humans came out of the darkness to find the truth in science. Now when science has taken an upper hand religions claim they are scientific if not superior to science. I don't understand how these people could relate scientific discoveries which required a lot of intelligence to religious dogma which is nothing but stupidity. No wonder some religions today proclaim themselves as scientific religion!

Now coming back to the most important concept in religion- ' GOD CREATED UNIVERSE AND EVERYTHING IN IT'. This is what believed by most of people today. I almost laugh at their ignorance and blind belief. Have you people heard of scientific discoveries today? What is universe? Our universe is composed of billions and billions of galaxies with each galaxy consisting of billions and billions of stars. Can you imagine the number? Now consider the distance between stars! Its in 'Light years'. Light has the fastest speed today(may be there might be some particle in future which can travel faster than light) and it takes years for it to travel between stars! Then imagine the colossal size of universe.

Now what is the basic ingredient that makes all these? Its atoms and particles inside them which are very very minute that it takes most powerful microscope to view them. Now there are even theories emerging to show the composition of the particles like protons, electrons themselves. Science is fascinating.

Human intelligence had grown but along with it also their stupidity too! Despite all these proved facts most of the humans still attribute all these to unproven 'God'. Ridiculous isn't it? Even the scientific discoveries are attributed to god. The religious folks not only relate science to them but also the scientists who are behind it. They claim that most scientists are theists. They do not leave even the greatest scientist 'Albert Einstein' himself claiming that he believes in 'God' although he clearly states he does not believe in personal 'God' and used the term in simply metaphorical ways. Recently today's greatest scientist 'Stephen Hawking' stated the same about universe against the existence of GOD. After this i can see a lot of hatred comments against him and ridiculously even about his scientific knowledge! This virtual blindness is the result of the blind faith in religion. The difference between religion and science is wide. Science always accepts mistakes and it continuously changes, improves and relies only verified solutions. Religion on the other hand is clearly dogma, does not change. For instance newtons theories are challenged by Einstein's and are even replaced by Einstein's theories. This is science. But can you ever change a religious text which states god created universe in 7 days into something like it took 8 days? Never! Clearly religion cannot even come near science and there are light years distance between them.

Politics and Religion

Well if the religions do not benefit science they do benefit Politics! Most politicians are concerned about their vote banks and nothing else( remember the group example i said. It applies even here). To attract large vote banks they have a simple way- Religion. Even in America which is a considered as a hot bed for science the motto is 'God bless America'. Can any USA president openly criticize religion nor any scientist would escape criticism if he criticizes religion. Certainly not. Politics is one of the major reasons why religion is still thriving today.

The Blind Superstitions

What about the ridiculous stories told by religions. Worst thing is people even believe in them! The concept of heaven, hell, God flying, recreation, concept of soul, all are noting but ridiculous. The stories in religious texts do not even use slightest of brain! I feel they are even hard to believe than fairy tales. Also we should not question them. Ridiculous isn't it. Most religions say God is responsible for our actions but we will be pushed to hell if we do wrong. Does this makes sense? If god does everything why should we get punishment? Worse thing is about prayers. Whatever we need we can pray to god and he will provide. Its awful that many people believe in prayers more than they believe in themselves.

Cruel things done by religion

Now speaking about cruelties done by religion- It starts from long back when no followers were persecuted, the crusades, conflicts between religions to present day's terrorism. Consider two people, two staunch followers of different religions, both don't have any enmity but they might hate each other just because religion! There had been a lot of bloodsheds in the name of religion if not the most. Certain 'self proclaimed' intelligent speakers claim that atheism had even lead to bloodshed citing to two most dictators namely Hitler and Stalin. I request them to use some logic. Hitler and Stalin did not do cruelties in the name of Atheism or just because they are atheist. But many cruelties are the strait effects of religion. I think people are witnessing many and I need not provide examples. The worst thing is how apostate are treated by religions. People do have their own options and rights and religions should not override them. Many religions even persecute apostates. Is this what religions proclaims as good?

The future of Religions

Do we need God and religion these days? Definitely not! Do god exist and whether anyone had seen him?- Definitely not! Humans had found better solutions to questions but these religions are like bad old habits. Its difficult to get rid of them but ultimately we should and we will! There is no space for blind faiths in this era of scientific truths. Most people culminate religions in the mind of their young at an early age. Even worse most education institutions have religions as their backbone and spread them in the young minds. Teach kids to believe in themselves rather than believing in non-existent 'God' or 'prayers'. If this is stopped I am sure religions would be wiped off faster.

India will have over hundred million 3G broadband subscribers by 2015

Indian telecom market has been growing at a CAGR of approximately 30% since 1995 and still growing strong. With additions of more than 14 million subscribers per month in the pas years, the wireless subscriber base has grown to 635.51 million in present year, second only to China.However, the recently concluded 3G spectrum and BWA auction saw intense competition among the bidders resulting in a revenue inflow of Rs.1.06 trillion for the government, surpassing most estimates.

In this context, the report examines the potential for Mobile Broadband Services, its impact on the telecom industry and other allied sectors in India.

“The transformative power of mobile broadband lies in its ability to enable greater access to the internet in India. Everyone from telecom industry, Government to other industries will be able to leverage a ubiquitous platform to reach out to a wide range of customers and provide diverse products and services more effectively.”

Key highlights of the report:

1. Mobile Services: Positive Outlook- The mobile subscriber base is projected to cross 1 billion in 2014 driven by high subscriber additions in mostly rural areas.

2. More than one hundred million 3G/HSPA broadband subscribers by 2015 and growing: Given the context of non-scalable wire line infrastructure, broadband in India is expected to be delivered on a wireless platform. Mobile broadband using technologies in the BWA spectrum band, such as TDD LTE, are expected to address enterprises and high net worth individuals; while broadband volumes are likely to be driven on the mobile platform leveraging 3G and HSPA technology.

3G subscriber numbers are projected to cross 107 Mn by 2015. Initially, the uptake of mobile broadband services will almost exclusively be in urban India; however by 2015 rural subscribers are likely to comprise 24 percent of overall 3G subscriber base in 2015.

Introduction of new innovative applications, enhanced user experience, decreasing prices of 3G/HSPA enabled handsets would be key driver for mobile broadband in India.

3 Mobile broadband will be a catalyst for changing business dynamics: In terms of service offerings, currently content is largely restricted to film based entertainment and cricket. High speed access will enable content developers and aggregators to generate additional revenue by offering diverse interactive content including local language content.
Content owners will move beyond operator portals and onto direct services via internet. This will also see advertising driven models, offering benefits to the users, with advertisers partly footing the bill. This will also reflect in increased bargaining power of content developers and aggregators vis-à-vis operators.

New partnerships will emerge; handset vendors will be partnering with content owners and aggregators to embed various applications in their devices to create product differentiation. In addition, mobile operators will be using content /application brands to launch new services.

4 Cascading impact of mobile broadband services: Mobile broadband services will generate incremental revenue of Rs.940 Ban in 2015 Ban for telecom industry as a whole.

5 Financial Services, Media & Entertainment, Agriculture and other allied sectors to benefit from mobile broadband: Financial services sector could effectively leverage the platform to reach out to a large base of unbanked customers across India.

In agriculture, mobile broadband would play a role in integrating rural India with rest of the country and help widen markets, create better information flows, lower transaction costs.

Novel X-ray machine is unveiled

Scientists have demonstrated a refined X-ray technique which can spot tiny variations in bone structures.

The technique uses X-rays delivered by powerful light sources and complex computer algorithms to resolve structural variations as small as 100 nanome

tres across.

Using the technique, the researchers have mapped in detail a bone fragment narrower than a human hair.

Synchrotron scale

Hospital X-ray machines work by passing an X-ray pulse through a body onto radiographic film.

The X-rays pass through softer tissue but are mostly absorbed by hard bone - leaving an image in which the skeleton and tissue are clearly distinguishable.

In recent years, scientists have been scaling up the power of the X-ray, using massive particle accelerators or synchrotrons to deliver much larger radiation doses.

While these cannot be used on humans for obvious reasons, they can be used in research work to reveal details in materials which are too thick for use in electron microscopes.

But X-ray imaging has its own problems, with X-rays difficult to focus or manipulate even with corrective lenses.

What Martin Dierolf and a team of scientists based in Germany and Switzerland have done is to refine these X-ray techniques.

Instead of relying on how X-rays are absorbed by different materials, they have instead focused on how they are diverted or refracted as they pass through different substances. This "phase contrast" signal gives much clearer and detailed results.

They also abandoned using any corrective lenses, firing the X-ray pulse through a pinhole and then collecting the diffracted rays after they pass through the sample.

They then used a powerful computer programme to rebuild a 3D image of the object scanned by rewinding the passage of the X-rays.

"It's like reconstructing a broken cup by playing the movie backwards and by doing that you bring all the X-rays into the sample to see how they've reacted," says Professor Henry Chapman of the University if Hamburg, who reviewed the study.

The sample is scanned with an X-ray beam and a 3D image is constructed by computer

The prototype was tested at the Swiss Light Source synchrotron near Zurich, using a mouse femur fragment narrower than a human hair.

The images obtained show detail down to the cavities in which osteocytes or bone cells reside, and the interconnective channels which are only some 100 nanometers in diameter.

A nanometre is a billionth of a metre.

Pierre Thibault of the Technical University of Munich, who is a member of the research team, says the likely applications are in medical research.

"Our method doesn't scale easily to hospitals and I'm not sure that's what we're aiming at anyway.

"It would be more for pre-clinical studies that are looking for instance at the onset of osteoporosis at the nano scale to see what happens at the scale of the bone cells. That's something we're going to look at in the next few months."

He says there could also be applications in engineering.

"You can look at alloys, how at this scale two different metals combine together because you have such a good sensitivity to different densities you can differentiate the two metals that are in the alloy, or maybe look at fractures inside the materials and see at this scale what's happening."

Drugs 'could target asthma genes'

A large international study has revealed several genetic variants which are linked to people with asthma.

In all, more than 500,000 tests were performed on the genes of 10,000 children and adults with the condition, and 16,000 non-asthmatics.

The Imperial College-led research, published in the New England Journal of Medicine, could point to new targets for drugs.

Experts said gene testing could not predict who would get the condition.

One in seven children in the UK suffers from asthma, which causes the airways to become irritated and narrow, making it harder for them to breathe.

The reasons why people develop the disease are not yet fully clear, although scientists suspect a roughly equal mixture of genetic susceptibility and environmental factors.

The latest genetic variants discovered by the international research appeared in more than a third of children with asthma.

However, the gene with the strongest impact on children did not affect people who developed asthma in adulthood, suggesting that the two versions of asthma may differ biologically.

Some of the genes identified are involved in the body's system for telling the immune system about damage to the lining of the airways, while others appear to control how quickly the airways heal.

Professor William Cookson, from Imperial College London, who co-ordinated the research, said: "Asthma is a complex disease in which many different parts of the immune system can become activated.

"Our study now highlights targets for effective asthma therapies and suggests that therapies against these targets will be of use to large numbers of asthmatics in the population."

However, parents have been warned that although genes make a contribution to asthma development, there is no way to use a genetic test to predict the condition.

Leanne Metcalf, from Asthma UK, said: "This unique study helps us to understand in much more detail how the genetic side of things works.

"Importantly, it has also shown that genetic testing does not help to predict who is susceptible to developing asthma, meaning that early diagnosis and intervention, and effective treatment for everyone who is affected by asthma, are even more vital.

"However the most exciting part is that these results will now help to ensure that scientists are able to focus their research on the most influential targets for asthma, with the important long-term aim of preventing a condition which is responsible for the deaths of three people every day."

Gates stays top of US rich list with $54bn fortune

Microsoft co-founder Bill Gates has been named as the wealthiest person in the US for the 17th year in a row.

Forbes magazine put his fortune at $54bn (£34.5bn), with investment guru Warren Buffet second with $45bn.

Software tycoon Larry Ellison was in third place, while Wal-Mart heir Christy Walton was fourth on Forbes' list of the 400 richest Americans.

It took a net worth of at least $1bn to earn a spot in the rankings - up from $950m in 2009.

The collective net worth of the 400 billionaires rose by 8% from 2009, totalling $1.37 trillion - approximately the same as the GDP of Spain or Canada.

Social network trend

Those gaining wealth in the list included Facebook co-founder Mark Zuckerberg, whose wealth grew by 245% to $6.4bn, the report said, putting him at 35 in the list.

His fellow co-founder Dustin Moskovitz is the youngest to make the top 400. The 26-year-old is eight days younger than Mr Zuckerberg and one of 16 new entrants to the list, which also includes another Facebook figure, Eduardo Saverin.

Another gainer was Manchester United owner Malcolm Glazer and family, while among those losing ground were the family behind confectionery giant Mars.

And there were 34 dropping off the list, including real estate mogul Tamir Sapir.

The 18 people returning to the list after a period of absence included Sidney Kimmel, at number 365, who made his fortune in the clothes business before producing films including The Kite Runner.

The report also found that among the 400 members of the list, 231 had donated to the Democratic Party between 2006 and 2010 - giving a total of $6.2bn. This compared with the 247 people who donated $7.3bn between them to the Republican Party.

TEN RICHEST AMERICANS
Rank	Name	Wealth	Source	Change from 2009
1	Bill Gates	$54bn	Microsoft	+ $4bn
2	Warren Buffett	$45bn	Berkshire Hathaway	+ $5bn
3	Lawrence Ellison	$27bn	Oracle	No change
4	Christy Walton & family	$24bn	Wal-Mart	+$2.5bn
5	Charles Koch	$21.5bn	Manufacturing	+$5.5bn
6	David Koch	$21.5bn	Manufacturing	+$5.5bn
7	Jim C Walton	$20.1bn	Wal-Mart	+ $500m
8	Alice Walton	$20bn	Wal-Mart	+ $700m
9	S Robson Walton	$19.7bn	Wal-Mart	+ $700m
10	Michael Bloomberg	$18bn	Bloomberg	+ $500m

OpEn SoUrCe :: A Tech. Update.

Open source refers to a program or software in which the source code (the form of the program when a programmer writes a program in a particular programming language) is available to the general public for use and/or modification from its original design free of charge.

Open source code is typically created as a collaborative effort in which programmers improve upon the code and share the changes within the community. 

The Open Source Initiative (OSI):

Open Source is a certification standard issued by the Open Source Initiative (OSI) that indicates that the source code of a computer program is made available free of charge to the general public. OSI dictates that in order to be considered "OSI Certified" a product must meet the following criteria:

• The author or holder of the license of the source code cannot collect royalties on the distribution of the program.
• The distributed program must make the source code accessible to the user.
• The author must allow modifications and derivations of the work under the program's original name.
• No person, group or field of endeavor can be denied access to the program.
• The rights attached to the program must not depend on the program's being part of a particular software distribution.
• The licensed software cannot place restrictions on other software that is distributed with it.  

  Open source software is normally distributed with the source code under an open source license. The Open Source Initiative sets the following distribution terms that open-source software must comply with::

The Open Source Definition, as provided by the Open Source Initiative is as follows:

Introduction
Open source doesn't just mean access to the source code. The distribution terms of open-source software must comply with the following criteria:

1. Free RedistributionThe license shall not restrict any party from selling or giving away the software as a component of an aggregate software distribution containing programs from several different sources. The license shall not require a royalty or other fee for such sale.

2. Source Code
The program must include source code, and must allow distribution in source code as well as compiled form. Where some form of a product is not distributed with source code, there must be a well-publicized means of obtaining the source code for no more than a reasonable reproduction cost preferably, downloading via the Internet without charge. The source code must be the preferred form in which a programmer would modify the program. Deliberately obfuscated source code is not allowed. Intermediate forms such as the output of a preprocessor or translator are not allowed.

3. Derived Works The license must allow modifications and derived works, and must allow them to be distributed under the same terms as the license of the original software.

4. Integrity of The Author's Source CodeThe license may restrict source-code from being distributed in modified form only if the license allows the distribution of "patch files" with the source code for the purpose of modifying the program at build time. The license must explicitly permit distribution of software built from modified source code. The license may require derived works to carry a different name or version number from the original software.

5. No Discrimination Against Persons or GroupsThe license must not discriminate against any person or group of persons.

6. No Discrimination Against Fields of EndeavorThe license must not restrict anyone from making use of the program in a specific field of endeavor. For example, it may not restrict the program from being used in a business, or from being used for genetic research.

7. Distribution of License
The rights attached to the program must apply to all to whom the program is redistributed without the need for execution of an additional license by those parties.

8. License Must Not Be Specific to a Product
The rights attached to the program must not depend on the program's being part of a particular software distribution. If the program is extracted from that distribution and used or distributed within the terms of the program's license, all parties to whom the program is redistributed should have the same rights as those that are granted in conjunction with the original software distribution.

9. License Must Not Restrict Other SoftwareThe license must not place restrictions on other software that is distributed along with the licensed software. For example, the license must not insist that all other programs distributed on the same medium must be open-source software.

10. License Must Be Technology-NeutralNo provision of the license may be predicated on any individual technology or style of interface. 

Free Software Licensing:

All open source software is not distributed under the same licensing agreement. Some may use a free software license, a copyleft, or GPL compatible. The GNU GPL license is a free software license and a copyleft license, while a "GNU Lesser General Public License" is a free software license, but not a strong copyleft license. There are many different types of licenses for free software . some GNU GPL compatible, some not.

The Open Source Initiative approves open source licenses after they have successfully gone through the approval process and comply with the Open Source Definition (above). There is currently well over fifty licenses that have been approved by the OSI.

For example, the GNU General Public License (GPL) is one license that accompanies some open source software that details how the software and its accompany source code can be freely copied, distributed and modified. The most widespread use of GPL is in reference to the GNU GPL, which is commonly abbreviated simply as GPL when it is understood that the term refers to the GNU GPL. One of the basic tenets of the GPL is that anyone who acquires the material must make it available to anyone else under the same licensing agreement. The GPL does not cover activities other than the copying, distributing and modifying of the source code. 

Other open source licenses include the following:

Academic Free License 3.0 (AFL 3.0)
Affero GNU Public License
Adaptive Public License
Apache Software License
Apache License, 2.0
Apple Public Source License
Artistic license
Artistic license 2.0
Attribution Assurance Licenses
New and Simplified BSD licenses
Boost Software License (BSL1.0)
Computer Associates Trusted Open Source License 1.1
Common Development and Distribution License
Common Public Attribution License 1.0 (CPAL)
Common Public License 1.0
CUA Office Public License Version 1.0
EU DataGrid Software License
Eclipse Public License
Educational Community License, Version 2.0
Eiffel Forum License
Eiffel Forum License V2.0
Entessa Public License
Fair License
Frameworx License
GNU General Public License (GPL)
GNU General Public License version 3.0 (GPLv3)
GNU Library or "Lesser" General Public License (LGPL)
GNU Library or "Lesser" General Public License version 3.0 (LGPLv3)
Historical Permission Notice and Disclaimer
IBM Public License
Intel Open Source License
ISC License
Jabber Open Source License
Lucent Public License (Plan9)
Lucent Public License Version 1.02
Microsoft Public License (Ms-PL) Microsoft Reciprocal License (Ms-RL)
MIT license
MITRE Collaborative Virtual Workspace License (CVW License)
Motosoto License
Mozilla Public License 1.0 (MPL)
Mozilla Public License 1.1 (MPL)
Multics License
NASA Open Source Agreement 1.3
NTP License
Naumen Public License
Nethack General Public License
Nokia Open Source License
Non-Profit Open Software License 3.0 (Non-Profit OSL 3.0)
OCLC Research Public License 2.0
Open Group Test Suite License
Open Software License 3.0 (OSL 3.0)
PHP License
Python license (CNRI Python License)
Python Software Foundation License
Qt Public License (QPL)
RealNetworks Public Source License V1.0
Reciprocal Public License
Reciprocal Public License 1.5 (RPL1.5)
Ricoh Source Code Public License
Simple Public License 2.0
Sleepycat License
Sun Industry Standards Source License (SISSL)
Sun Public License
Sybase Open Watcom Public License 1.0
University of Illinois/NCSA Open Source License
Vovida Software License v. 1.0
W3C License
wxWindows Library License
X.Net License
Zope Public License
zlib/libpng license 

Some Successful Open Source Projects:

 

Sendmail
Sendmail is an open source mail transfer agent (MTA) used for routing and delivery e-mail. The original version of Sendmail was written by Eric Allman in the early 1980s. It is estimated that Sendmail is installed on 60 to 80 percent of the Internet's mail-server computers.

Apache Web server
Often referred to as simply Apache, a public-domain open source Web server developed by a loosely knit group of programmers. The first version of Apache, based on the NCSA httpd Web server, was developed in 1995. Core development of the Apache Web server is performed by a group of about 20 volunteer programmers, called the Apache Group. However, because the source code is freely available, anyone can adapt the server for specific needs, and there is a large public library of Apache add-ons.

Linux
(Pronounced lee-nucks or lih-nucks). A freely distributable open source operating system that runs on a number of hardware platforms. The Linux kernel was developed mainly by Linus Torvalds. Because it's free, and because it runs on many platforms, including PCs and Macintoshes, Linux has become an extremely popular alternative to proprietary operating systems.


GNOME
Acronym for GNU Network Object Model Environment. (Pronounced guh-nome) GNOME is part of the GNU project and part of the free software, or open source, movement. GNOME is a Windows-like desktop system that works on UNIX and UNIX-like systems and is not dependent on any one window manager. The current version runs on Linux, FreeBSD, IRIX and Solaris. The main objective of GNOME is to provide a user-friendly suite of applications and an easy-to-use desktop.

Different Types of Computer Operating System(s)

Operating system ABCs:

An operating system, or OS, is a software program that enables the computer hardware to communicate and operate with the computer software. Without a computer operating system, a computer would be useless.

Operating system types:

As computers have progressed and developed so have the types of operating systems. Below is a basic list of the different types of operating systems and a few examples of operating systems that fall into each of the categories. Many computer operating systems will fall into more than one of the below categories.



GUI -

Short for Graphical User Interface, the GUI was first developed at Xerox PARC by Alan Kay, Douglas Engelbart, and a group of other researchers. A GUI uses windows, icons, and menus to carry out commands such as opening files, deleting files, moving files, etc. and although many GUI Operating Systems are operated by using a mouse, the keyboard can also be used by using keyboard shortcuts or arrow keys.Unlike a command line operating system like Unix or MS-DOS, GUI Operating Systems are much easier for end-users to learn and use because commands do not need to be known or memorized. Because of their ease of use, GUI Operating Systems have become the dominant operating system used by end-users today.A few examples of a GUI Operating Systems:

Microsoft Windows 95
Apple System 7
Apple Mac OS.
 

Multi-user –

A multi-user operating system allows for multiple users to use the same computer at the same time and/or different times

some examples of multi-user operating systems.

Linux
Unix
Windows 2000

 

Multiprocessing - 
 An operating system capable of supporting and utilizing more than one computer processor. Below are some examples of multiprocessing operating systems.

Linux
Unix
Windows 2000

 

Multitasking - 
 An operating system that is capable of allowing multiple software processes to run at the same time. Below are some examples of multitasking operating systems.

Unix
Windows 2000

 

Multithreading -  
Operating systems that allow different parts of a software program to run concurrently. Operating systems that would fall into this category are:

Linux
Unix
Windows 2000

Operating system listing:

Below is a listing of many of the different types of operating systems available today, the dates they were released, the platforms they have been developed for and who developed them.

Operating system	Date first released	Platform	Developer
AIX / AIXL	Unix / Linux.	Various	IBM
AmigaOS	Currently no AmigaOS operating system history.	Amiga	Commodore
BSD	Unix / Linux.	Various	BSD
Caldera Linux	Unix / Linux.	Various	SCO
Corel Linux	Unix / Linux.	Various	Corel
Debian Linux	Unix / Linux.	Various	GNU
DUnix	Unix / Linux.	Various	Digital
DYNIX/ptx	Unix / Linux.	Various	IBM
HP-UX	Unix / Linux.	Various	Hewlett Packard
IRIX	Unix / Linux.	Various	SGI
Kondara Linux	Unix / Linux.	Various	Kondara
Linux	Unix / Linux.	Various	Linus Torvalds
MAC OS 8	Apple operating system.	Apple Macintosh	Apple
MAC OS 9	Apple operating system.	Apple Macintosh	Apple
MAC OS 10	Apple operating system	Apple Macintosh	Apple
MAC OS X	Apple operating system	Apple Macintosh	Apple
Mandrake Linux	Unix / Linux.	Various	Mandrake
MINIX	Unix / Linux.	Various	MINIX
MS-DOS 1.x	MS-DOS.	IBM / PC	Microsoft
MS-DOS 2.x	MS-DOS.	IBM / PC	Microsoft
MS-DOS 3.x	MS-DOS.	IBM / PC	Microsoft
MS-DOS 4.x	MS-DOS.	IBM / PC	Microsoft
MS-DOS 5.x	MS-DOS.	IBM / PC	Microsoft
MS-DOS 6.x	MS-DOS.	IBM / PC	Microsoft
NEXTSTEP	Apple operating system	Various	Apple
OSF/1	Unix / Linux.	Various	OSF
QNX	Unix / Linux.	Various	QNX
Red Hat Linux	Unix / Linux.	Various	Red Hat
SCO	Unix / Linux.	Various	SCO
Slackware Linux	Unix / Linux.	Various	Slackware
Sun Solaris	Unix / Linux.	Various	Sun
SuSE Linux	Unix / Linux.	Various	SuSE
System 1	Apple operating system	Apple Macintosh	Apple
System 2	Apple operating system	Apple Macintosh	Apple
System 3	Apple operating system	Apple Macintosh	Apple
System 4	Apple operating system	Apple Macintosh	Apple
System 6	Apple operating system	Apple Macintosh	Apple
System 7	Apple operating	Apple Macintosh	Apple
System V	Unix / Linux	Various	System V
Tru64 Unix	Unix / Linux	Various	Digital
Turbolinux	Unix / Linux	Various	Turbolinux
Ultrix	Unix / Linux	Various	Ultrix
Unisys	Unix / Linux	Various	Unisys
Unix	Unix / Linux	Various	Bell labs
UnixWare	Unix / Linux	Various	UnixWare
VectorLinux	Unix / Linux	Various	VectorLinux
Windows 2000	Windows.	IBM / PC	Microsoft
Windows 2003	Windows.	IBM / PC	Microsoft
Windows 3.X	Windows.	IBM / PC	Microsoft
Windows 7	Windows.	IBM / PC	Microsoft
Windows 95	Windows.	IBM / PC	Microsoft
Windows 98	Windows.	IBM / PC	Microsoft
Windows CE	Windows.	PDA	Microsoft
Windows ME	Windows.	IBM / PC	Microsoft
Windows NT	Windows.	IBM / PC	Microsoft
Windows Vista	Windows.	IBM / PC	Microsoft
Windows XP	Windows.	IBM / PC	Microsoft
Xenix	Unix / Linux	Various	Microsoft