Installing Operating System (OS) needs registration to function fully. Maybe, you install unregistered OS that's why it comply the needs of CD. I suggest you reformat it. Buy the retail OS (if can't afford crack your OS out) so it won't ask you again about the OS error.
No it is a Windows PC. Apple computer run the OSx operating system which is currently called Snow Leopard.
insert tables, scripts, adn graphics in web pages
An Operating system is a software that controls the computer's hardware and softwares. In Windows, there are many operating systems, such as: -Windows 10 -Windows 8.1/8 -Windows 7 - (Continues to older versions) -Vista/Xp/Home Basic/Xp Professional/2003 etc.
Windows XP Professional is an operating system.
Professional
...with Windows XP Professional already installed on your computer. Windows Vista cannot be installed without Windows XP Professional installed first on your computer, it's the same with Windows 7; Windows' latest operating system (OS).
Windows laptop computer refers to the operating system in the computer. This operating system is where your virtual memory, task, and files are stored.
Two prominent applications that come bundled with Windows Operating Systems are Microsoft Word and Microsoft Excel, both part of the Microsoft Office suite. Microsoft Word: Microsoft Word is a word processing application that allows users to create, edit, and format text-based documents. It provides a wide range of features including spell check, grammar check, formatting options like font styles, sizes, and colors, as well as tools for inserting images, tables, and graphs. With its intuitive interface and extensive functionality, Microsoft Word has become the standard for word processing in both personal and professional settings. Whether you're drafting a simple letter or crafting a complex report, Microsoft Word provides the tools necessary to create polished and professional-looking documents. Microsoft Excel: Microsoft Excel is a spreadsheet application that enables users to organize, analyze, and manipulate data. It features a grid of cells arranged in rows and columns, where users can input numerical data, perform calculations, and create visual representations of their data using charts and graphs. Excel offers a wide range of functions and formulas to perform complex calculations, along with features like conditional formatting and pivot tables for advanced data analysis. From simple budgeting and expense tracking to complex financial modeling and data analysis, Microsoft Excel is an indispensable tool for businesses, academics, and individuals alike. These applications, along with others like PowerPoint, Outlook, and OneNote, are part of the Microsoft Office suite, which is often included with Windows Operating Systems or available for purchase separately. Additionally, for those looking to upgrade their Microsoft product keys, platforms like Softwarekey4u .com offer affordable and user-friendly options to seamlessly upgrade your software licenses. With services like this, users can easily access the latest features and enhancements of Microsoft products without any hassle, ensuring they stay productive and up-to-date with their software needs.
windows xp home edition windows 98 windows NT 4.0 workstation windows 2000 professional
The operating system
To install more than one operating system on a computer, it is best to start with the oldest first. For example, if you are installing Windows 98 and Windows XP on a computer, install the Windows 98 first. Put the installations on separate partitions. This will prevent conflicts between the two. Once you have installed the second operating system you will find that each time you start your computer, you are given the option of which operating system to invoke. Remember that if you have a Windows XP partition with files that you want to access from the Windows 98 (or Linux) installation, choose the FAT32 file system when installing XP. Windows 98 and some versions of Linux cannot access files on an NTFS partition.
Installing any pirated software leaves you at risk of prosecution and the seizure of your computers (depending on your location). Installing any version of Windows (legitimate or otherwise) on a Mac means that it is liable to be infected with the thousands of viruses that exploit the Windows operating system. A pirated version of Windows may well include code that will be exploiting and compromising your computer.