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Red Hat Linux is an open source and a monolithic operating system. The red hat linux is introduced by red hat enterprise. The basic purpose of publishing the red hat is to make it available commercially and their basic aim is to the mainframes.
HISTORY OF RED HAT LINUX:
Red hat linux 1.0 was released in the year of 1994. It was the first linux to use the RPM package manager. The term RPM refers to two things
Software Package file format
Software packaged in this format
This package manager was the starting point for the many distributions of the linux operating systems.
Red hat was discontinued in the year 2003. Red hat 9.0 was the final release. Still today many updates are available of the red hat which are being published by the Fedora project.
FEATURES OF RED HAT LINUX OPERATING SYSTEM:
It is a multitasking and multi programming distribution. A user can process a number of tasks at a time.
It is multiplatform that it runs on many computer architecture not just INTEL.
It has memory protection so there is no leak of memory and the whole memory may not be used by just a single process.
Special file system called UMSDOS which allows it to be installed on DOS file system.
It has a special feature of dynamically shared library and also static library.
UTF-8 was enabled for the red hat 8.0 for the character encoding scheme. it had a little effect on the people speaking English but it caused internationalism as it supported more than one language platform.
It introduced a graphical installer called the ANACONDA. It has been written on Python and C. It provides both the GUI mode and console mode so it can be installed on a wide range of systems.
TCP/IP networking. Network client server.
Red hat 7.0 was prepared for the Kernal 2.4.
It has a CDROM file system and is capable of reading all kinds of CDâ€™s.
Version 9.0 supported the Native POSIX thread Library. it is a system application that enables the linux kernel to run those programs that are written in Native POSIX thread Library.
Virtual memory of red hat supports the concept of paging that it distributes the processes into segments, it does not swaps the whole processes.
It also posses firewall capabilities.
Macintosh file system is available on separate module.
It has unified pool memory and disk cache for user programs and that every user is equal share of memory.
The main feature of red hat that is that it is suitable for all kinds of users but basically it is used more by the persons who have their interest in the field of the open source programming.
Many experts have compared Red Hat Linux with other Linux operating system but every user has its own perception. This was the base of the linux operating system so no dought this must be considered as one of the best linux operating system on the basis of distribution of memory and user space and its availability and easiness to the user side.
SOLARIS OPERATING SYSTEM
Solaris is unix based operating system and was introduced by the sun Microsystems. It is also a open source system. It supports the servers and workstations of the sun Microsystems. It is supported on all the vendors. It is not consigned to single platform.
VERSIONS OF SOLARIS OPERATING SYSTEM
There are a number of features of solaris operating system
Solaris one which was based sun os 4 release for marketing purposes.
Solaris two to support SMP which was first to support multithreading.
After this there was a change in solaris series and direct solaris seven was launched it made huge impact on the market.
Solaris 10 is the latest version of this operating system and supports many new applications of sun Microsystems.
HISTORY OF SOLARIS OPERATING SYSTEM:
The first solaris operating system was published by the sun Microsystems in September 1991. The latest version of the solaris operating system is solaris 10 which has a number features and it has made user interface much easier and all kinds of users can use this type of operating system. The sunos 5.10 is the core of solaris 10 and has some new capabilities.
FEATURES OF SOLARIS OPERATING SYSTEM:
Many number of architectures supports this product of sun Microsystems.
Open source, multi tasking, multi processing.
It has low cost by combining many applications on a single platform.
Real time debugging
Certified multi level security
Solaris 10 requirements are
Minimum of 256 memory
Minimum disk space of 12GB
Maximum processors 64 bit
Minimum processor 32 bit
It can hold the maximum memory of 1 TB.
It has pooled storage that every user will get a specified storage place not less or not more than that.
It has logical domains.
It has ZFS file system.
It supports a number of products of sun microsytem like the predictive self healing solaris trusted extensions and many more.
In short solaris 10 is really good and awesome product of sun Microsystems and it has lead the company to many achievements and it really encourages a tough market for other members of publishing this kind of product.
MICROSOFT WINDOWS 7
Microsoft windows 7 is the latest release version of Microsoft and it has made a great impact on the market after the failure of windows vista. It is really easy to use and many of the people are shifting onto this product of Microsoft. Many seminars are being conducted by the Microsoft and many students are being invited to attend these seminars. Through these seminars many of the people are learning the real power of the microsft windows 7.
REQUIREMENTS OF WINDOWS 7
1 gigahertz and minimum 32 bit processor
Minimum of 1GB of RAM.
Minimum of 16GB of hard disk.
Direct X 9 graphics.
HISTORY OF MICROSOFT WINDOWS
In 1983 microsoft a GUI interface for its own use. After this it has released many versions of Microsoft and is useful a great deal.MS-Dos was the first of the operating system of Microsoft and after this many of the operating systems have been released which are very much useful for the daily life users who use operating systems for entertainment and many other stuffs.
VERSIONS OF MICROSOFT WINDOWS
Windows NT family
FEATURES OF MICROSOFT WINDOWS 7
Like all other operating this operating system is also multi programming and multi tasking and multi processing and supports many platforms.
It has many hidden themes which are to be explored by the user.
It is widely used operating system today many people are shifting to this type of operating system.
It has Kernel improvements
It has new booting services.
It has new gadgets. Gadgets were first introduced in windows vista which are present in the sidebar.exe. windows 7 also consists of the same features but they are advanced in the matters of graphics and presentations.
Quick launch offer has been replaced with pinning applications.
It has clear type text tuner.
For developers windows 7 supports new type of API and has made easy development easy for the new people.
It consists of new libraries, which includes of virtual folders.
Search box in the explorer and the address bar can be resized.
New features included in the start up menu.
Jump list option has been included by which person can keep its mouse on an item can browse many things.
Windows 7 is the latest of the products of the Microsoft and it consists of some really new features which has made this product one of the best products of Microsoft. It has made the life of the user really easy.
WINDOWS MOBILE EDITION
Windows mobile edition is a compact mobile edition developed especially for the smart phone users it has many features. It is based on windows CE and developed using Microsoft windows API. It is somehow related to the desktop versions of windows. This was basically built for business man who can operate their emails from anywhere.
HISTORY OF WINDOWS MOBILE
Windows mobile started from 2000 when pocket pc was launched it gave new life to the users of the mobile. Many people shifted from their ordinary phone to the pocket pc. This is how windows mobile got really hit and forced a number of professionals to get to know the usage of this kind of technology.
VERSIONS OF WINDOWS MOBILE EDITION
Pocket pc 2000
Pocket pc 2002
Windows mobile 2003
Windows mobile 2003 SE
Windows mobile 5
Windows mobile 6
Windows mobile 6.1
Windows mobile 6.5
FUTURE VERSIONS OF WINDOWS MOBILE EDITION
Windows mobile 6.5.1
Windows mobile 6.5.3
Windows mobile 6.6
Windows mobile 7
FEATURES OF WINDOWS MOBILE EDITION
Today screen shows date, owner information, pop up emails and many other features.
It consists of the option of windows browsing.
The latest version of windows mobile consists of Microsoft my phone by which a person can sync its phone to the data web and get its information back from the source.
It has social networking applications by which a user can use facebook and many other types of these applications.
Updated lock screen
It consists of designer themes through which user can make its own style of backgrounds.
It consists of many software games through which the user of the windows based mobile can be entertained.
It consists of windows media player in which many kinds of videos can be played.
Msn Widgets provide the information to the stock and weathers.
It consists of really nice kinds of applications like Microsoft office has been included in the future version of windows mobile edition.
Windows mobile brought a influence in the world and many people are enjoying the usability of this kind of operating system and it has made the life of the real professionals really easy and a person can get to his work within seconds without having to worry about any thing.
MAC OS OPERATING SYSTEM
Mac os is a trade mark name which is established by apple. This was established for their macintosh systems in order to promote them and make them available for everybody to use their machines and make a trademark that this operating system can only be used on their machine and no one else can use this operating system except for the apple users.
HISTORY OF MAC OS
In 1983 the first mac os was established from where it all started. It was brand new idea which helped in the world in GUI mode.
VERSIONS OF THE MAC OS
Mac os server 1.0 x
Mac os 10.0
Mac os 10.1
Mac os 10.2
Mac os 10.3
Mac os 10.4
Mac os 10.5
Mac os 10.6(latest)
FEATURES OF MAC OS OPERATING SYSTEM
mac os has an additional graphical interface known as AQUA.
It also a multiprocessing and multitasking operating system and useful in number of cases.
It also has remote desktop connection which is really useful for all kinds of users.
It consists of different kinds of widgets.
It is only supportable only on one kind architecture of apple.
It has the capability of virtual desktop.
One of the finest and greatest products of apple and one can really enjoy it.