Because only 4% of people use OSX, so no one bothers to attack it. Even less people use Linux, and it is super secure.
A Linux system generally gets the least viruses
Yes, of course U can use WIndows and Linux on a same PC. For that u need to install boot loader which ask u for Operating System choice Option. Most of the time boot loader automatically gets installed when u install Linux on a windows machine. I have personal experience of running these two OS's simulteniously bye Happy computing
This is often highly debated by IT experts. In terms of licensing only, Linux is much less expensive than Windows: Linux is free of cost as the GPL is a license applied to distribution only. Where it gets fuzzy is in Total Cost of Ownership (TCO), some argue Linux is more "expensive" because of training and hardware support, though others argue that for normal users who need to use a few applications those TCO factors are not relevant. In my opinion Windows is much more expensive.
It is widely believed that the reason Windows is so prone to viruses is due to its popularity on the desktop, as Windows powers approximately 87% of the world's desktop computers. While this is true, there is actually much more to it than that, and it really has to do with the basic architecture of the operating system itself. Windows, as well as DOS before it, was designed to be a single-user operating system. This means that the operating system is designed to let the user have free reign over the entire system. However, the system has no way to tell who's doing what on the system, and no means of enforcing who can do what. As such, virus-laden code can all too easily sneak in via the Internet without your knowledge or permission. Some versions of Windows, such as Windows NT, 2000, XP Professional, Server 2003, Server 2008, and Vista, have multiple user logins. However, Microsoft chose to preserve compatibility with programs designed for other versions of Windows, such as Windows 95, 98, or XP Home Edition, because those programs were used to having the whole computer all to themselves. As such, they had to do some fancy hacks to pull all that off, and in the process, they still left even Server 2003 and Server 2008 full of holes for hackers to exploit. Apple's Mac OSX and Linux do not suffer from this problem. This is because they are designed from the ground up with security in mind, whereas Microsoft Windows was created for convenience with security being little more than an afterthought. Mac OSX and Linux both use a filesystem that has a strictly-enforced set of permissions that are attached to every file and folder in the system, and they spell out specifically who is allowed to do what with each file or folder. In Windows, for a virus to infect your system, it first has to install itself onto your system. As previously stated, it's very common for viruses to do this without your knowledge or permission. But with Mac OSX or Linux, you have to have administrative privileges in order to install or uninstall a program. On Mac OSX or some Linux distributions, such as Ubuntu, all you do to install or uninstall a program is enter your password when prompted to do so before you will be allowed to proceed (quite a few other Linux distributions have you enter a root password instead, requiring you to remember two passwords, one for yourself, and the other for the all-powerful root account). If, in the case of Mac OSX or Ubuntu, you don't have administrative privileges, or in the case of other distros, you don't know the root password, you simply can't do it. And that's a good deal of why Mac OSX and Linux are way more secure than Windows -- because viruses simply don't have the authorization to do install themselves behind your back with Mac OSX or Linux.
exit.
Almost definitely yes. It will run faster than with Windows Vista. If you run Windows 7 on a machine with a dual- or quadcore 64bit processor, Windows 7 will outperform XP too. XP and most other older operating systems does not utilise multi core processors. I will even pitch it against Linux KDE4 (which might start a big war), but since Linux is highly customizable a direct comparison will be a streched out debate.
The organs of the immune system fight viruses and bacteria.
Different operating systems have differing features, though they all have the primary function of controlling the software and programs running on a computer or other device. Popular features include: A start menu or application menu (Windows, Linux) Multiple desktop workspaces (Linux, Mac OS X) Taskbar (Windows, Linux) or dock (Mac OS X, also Linux) to track favorite program shortcuts and active applications A desktop environment. Linux has GNOME or KDE (and a few others), Mac has Aqua, and Windows Vista has Aero. Desktop acceleration (Mac OS X, Linux using Compiz or similar, and Windows Vista Premium, Business, or Ultimate)
cells are not made with viruses unless the virus gets into the cell itself. The viruses get into the cell and the virus will spread killing off whatever it can ;)
In my experience the two operating systems are about the same. They are just as fast, do the same thing, and are both easy to use. The only difference is that Apple is more expensive, but gets a few less viruses. And windows is cheaper, but has more programs that are more compatible with it.
You click the write button. Now this gets to the tricky bit. If your on windows it'll say Desktop background, if your on Linux it'll depend, some will say preferences some will say change desktop background.
... it starts up. Well, to get a little technical about it, the BIOS of the computer checks all the hardware (mounting and error checking) and gets everything ready, then boots the operating system (Windows/Linux/Mac).