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OPERATING SYSTEMS
OVERVIEW
IntroductionIntroduction
An interface between users and hardware - an environment"architecture
Allows convenient usage; hides the tedious stuff
Allows efficient usage; parallel activity, avoids wasted cycles
Provides information protection
Gives each user a slice of the resources
Acts as a control program.
WHAT IS AN OPERATING SYSTEM?
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About Mac OS X Snow Leopard
Mac S X Snow Leopard (version 10.6) is the seventh and current majorrelease of Mac S X, pple's desktop and server operatingsystem forMacintosh computers.
Snow Leopard was publicly unveiled on June 8, 2009 at the ppleorldwide Developers Conference.
n ovember 10, 2010, it was released as 10.6.5 model worldwide, andwas made available for purchase from pple's website and its retailstores at the price of US$29 for a single-user license.
The goals with Snow Leopard were improved performance, greaterefficiency and to take advantage of modernMacintosh hardware.
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1. efined, not reinvented.
2. ew look, new features .
3. Quicker Time Machine backup
± Time Capsule
Tools for backup data with its
Wireless technology.
± TimeMachine
utomatic backup for ourMac
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Features of Time Machine
1. Set it, then forget it
Connect the drive and assign it to Time Machine and enjoying peace
of mind time machine will automatically do his job of backup data.
But what makes Time Machine different from other backup
applications is that remembers how your system worked on a given
day.
2. Go back in time
Say we accidentally deleted a file we meant to save on that
condition the feature of Mac will provide us the security to go backin time and save the file.
3. Migration with style
Style can be changed according to the time set the time machine
for the great appreance of the operating system.
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4. Faster to wake up and shut down.
5. Faster, more reliable installation.
6. Smaller footprint: Snow Leopard takes all
about 7 B of Hardisk for installation purpose.
7. More reliable, higher
resolution on iChat: Having
a video chat using iChat is
more reliable and more
accessible than ever in Snow Leopard.
8. Automatic time zone setup: If we are traveling around the world, the last thing we
want to worry about is whether our computer is set to the correct time zone. Using
the Core Location technology, it locates knownWi-Fi hotspots to set the time zone
automatically, so youll always know the right time no matter where we are.
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9. Easy PDF text selection.
10. Faster, more powerful Safari.
11. More reliable disk eject:
Snow Leopard improves the reliability of ejecting discs and external drives.Sometimes when an application or process is using the files on a drive,
Mac S X prevents you from ejecting it thus protecting the system from
various accidental crashes.
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Advance Technology 01 .
TheMac Snow Leopard is purely 64 bit perating System.
The entire computing industry is moving from 32-bit to 64-bit
technology, and its easy to see why. TodaysMac computers can
hold up to 32 B of physical memory, but the 32-bit applications
that run on them can address only 4 B of M at a time, but 64-bit computing
shatters that by enabling applications to address a 16 billion gigabytes of
memory.
02. Built-in applications are now 64-bit:
The mac Snow leopard S has all system applications including the Finder,
Mail, Safari, iCal, and iChat are now built with 64-bit code.
03. Ready for the future.
The 64-bit support in Snow Leopard makesMac S X completely ready for
whatever computing enhancements might arrive in the future. For example,
Snow Leopard is ready to support up to 16 terabytes of M about 500
times more than todaysMac os.
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04. More secure than ever : Another benefit of the 64-bit applications in Snow
Leopard is that theyre even more secure from hackers and malware than the
32-bit versions.
05. 32-bit compatible.
To ensure simplicity and flexibility, Mac S X still comes in one version that runs
both 64-bit and 32-bit applications. But the developer of Mac S has stated
theirMac S as ure 64-bit perating System.
06. Familiar, C-based language with industry support.
With penCL stands for pen Computing Language. TheMac S
has a full support for the programming based Languages like C based language.
07. Power of UNIX. Simplicity of the Mac.
The power of U IX S can be seen inside theMac
S in the case of working of security but in
appreance it has the functionality of Mac.
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Windows on a Mac
1. Office on your Mac
VariousMicrsoft application can be run on a pc with havingMac S
installed on that.
2. Microsoft Exchange Server support
A native version of Microsoft ffice is available forMac S X, and itfeatures aMac-friendly interface that lets you create documents withWord, presentations with ower oint, and spreadsheets with Excel justlike on aWindows C.
3. It runs Windows, tooWe can install multiple operating system in a C having Mac S.
such as windows S andMac S
4. Connect to PCs over a network: provide the functionality to connect our
pc over a network pc usingM
ac S.
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Hardware equirement
� Mac computer or an Intel processor with a 64-bit processing.
� equires a 1.6 Hz processor or faster for improved performance.
� 1 B of minimum am memory.
� 10 B of available Hardisk space for installing the full version of Mac S X
Snow Leopard.
� DVD drive for installation.
� Some features require a compatible Internet service provider; fees may
apply.
� Some features require ApplesMobileMe service; fees and terms apply.
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Advantage of MAC OS
A. lug & lay : TheMacintosh computer's true " lug and lay" capabilitiesmake adding hardware cards easy.
B. Adding eripherals : TheMacintosh computer's built-in SCSI port makes it
easy to add peripherals.
C. Easier Installation : TheMac S is easier to install thanWindows.
D. o DLL roblems :Windows "DLL" files cause many problems but in Mac
S there is no such DLL problem occures.
E. Better FolderManagement : TheMacintosh has superior folder
management compared withWindows
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F. Fewer Viruses :Macintosh hosted viruses are much less common than
viruses specific toWindows and D S. The Anti-virus esearch Centre, a
Symantec web site dedicated to tracking existing viruses on both Macintoshcomputers and Cs, shows that there are more than 8,000 C viruses in
existence, with two or three new ones appearing every day. In contrast, there
are currently only 47 known viruses specific to theMac S.
. Faster Performance : It's easier to work with graphics and multimediacontent on the Macintosh.
H. Games Work Better :Macintosh games do not suffer from the driver
problems thatWindows games do. Because so many games on the Windows
platform have unique drivers for running sound cards and other devices, thedriver difficulties encountered by the averageWindows user are well known. v
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Disadvantages of MAC operating system
M
ac S is designed to work on limited computers.
Most often they are designed to run on Apple hardware therefore we can say
thatMac operating system is really compatible but only for Apple computers.
Mac S is really very compatible to Apple Cs and Laptops. Apple Cs andlaptops are on the other hand very expensive.
Mac operating systems are not for everyone they are mostly used by graphic
designers.
To install aMac S it require more of hardrive space, it takes more Hardisk
space for installation and for working purpose.
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Hence trying to install any of the windows applications like Adobehotoshop onMac X would go all in vain.
TheMac S versions need most advance and latest hardware in order to
run.
Mac operating system is considered really secure this I because there are
few number of users till now. If however the number keeps on increasing
day by day then we might face serious security risk even with this
operating systems well.
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What's t he Difference Mac OS and W indows Operating System?
S.no Mac OS Windows
01. Mac first version was released in the year
1980s.
Windows was released in 1985 and
was at least inspired from the earliest
Mac S
02. Mac isdesigned more for graphical and
multimedia functions and tends to run
better thanWindows doing so.
Windows, however, is much better withstatistical applications as well as office
applications. It also seems that Windows
is easier for the user to customize,
Machado explained.
03. Mac S made it easier for developers to
assure compatibly and reliability.
However, it has also limited the size ,
which stood at about 30 million
Microsoft emphasized getting as large a
user base as possible for Windows. ow,
somewhere around 90 percent of
computer users runWindows.
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S.No Mac OS Windows
04. Mac is an operating system
microkernel CarnegieMellon University
developed to support operating systemresearch. The basis of theMac S X is
still the core built by CarnegieMellon.
"Windows was built around
networking. Its foundation is on highly
modifiable DLLs (Dynamic LinkLibraries) to support many applications
and a registry file for multiple
configurations.
05.M
ac S -- easier to use, nicer to lookat, safer (less people looking for holes
in the S).
Windows -- when combined with acomputer purchase, huge user support
network, easy to customize and repair,
support for a gazillion hardware and
software extensions
06. S X is a Unix based operating system
with a UI which is more user friendly
thanWindows for many users.
Windows is prevalent in business
environments, and has differing
architectures based upon which flavor
is installed (there are vast differences
between 3.11, 95, 2000, X , Vista, and
7)
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