Yes, Mac OS X 10.5 Leopard ships with Java support.
Snow Leopard is an upgrade to Leopard and so you will need Leopard installed on your Mac before installing Snow Leopard. For Mac computers with an Intel processor running Tiger you will need to purchase the box set that includes iLife 09 and iWork. (See links below)
You can run Tiger, Leopard, and Snow Leopard. You cannot run Lion.
You can indeed run Java on Mac OS. Java is not dependant on the single computer architecture but depends on the JVM (Java Virtual Machine). One of the most powerful features in Java is that it promises WORA (Write Once, Run Anywhere(eg. Mac, Windows, Unix).If you can't run java on your Mac do one of the following:- Go to Apples website -> Support -> Search for "Java for Mac"- Use the Software Update feature (available on the Apple menu) to check that you have the most up-to-date version of Java for your Mac.**From Oracles website (Java developer)
You can use the Leopard install disc as often as you need on a single Mac. If you want to install leopard on several Macs you need to purchase a Family Pack version of Leopard.
You can. LimeWire is written in Java. You can run it on any operating system with a Java virtual machine, regardless of processor. LimeWire has a download for Mac OS X on their website.
You can use Microsoft Excel on any Windows operating system. You can also use it on a MAC using Mac OS X Snow Leopard.
Snow Leopard and Windows 7 are two completely different types of operating system. You cannot use software written for Mac OS X (Snow Leopard) on a computer using Windows 7 (or vice versa). On a Mac you can run both operating systems so you can run Windows 7 instead of Mac OS X or in a separate window on top of Mac OS X (Snow Leopard) using Parallels or Fusion (See links below).
For a 7th grader, the best Mac OS would have to be 10.4 Tiger. It's simple, easy to use, and has fewer problems than its successors, 10.5 Leopard and 10.6 Snow Leopard.
Leopard, 10.5 is the last OS you can use on a Power PC machine. 10.6, Snow Leopard is Intel only.
No. Java (a programming language), is not a prerequisite for learning how to use any mainstream operating system (such as Windows, Mac OS, or Linux).
Apple iMacs use regular Java the same as everybody else. Mac OS X 10.5 (Leopard) comes with J2SE 5.0 preinstalled. This can be updated to Java SE 6 (version 1.6.0_07,) and J2SE 5.0 to version 1.5.0_16. Only Macs with Intel processors can support the latest 64 Bit Java updates. Software update (found in the Apple menu top left corner) will inform you of all available updates.
The most popular operating systems that can be uses on a MacBook include: Mac OS X 10.4 (Tiger), Mac OS X 10.5 (Leopard), Mac OS X 10.6 (Snow Leopard - due soon), Windows XP, Windows Vista, Windows 7, and several varieties of Linux.