Software

Software are computer instructions or data. Anything that can be stored electronically is software.
 * What is Software?**

System software** - The operating system(OS) and the other utilities that makes a computer to function
 * Software is often divided into two categories.
 * Application software** - Specific programs made for the user. For example, Word processors, spreadsheets and database.

One big part of Software is the Operating System The operating system controls how all software applications, gamese or other progarms work on the computer, Here are some examples, Operating systems are usually regularly updated to fix problems(bugs) and to add more features. This is done rather than making new ROM chips. It is cheaper for the company and also allows the user to choose between different OSs when they start the computer.
 * File management** - Saving, copying, renaming and deleting files
 * Multitasking** - Allowing more than one program to run at the same time. For example, using a Word processor and a desktop publishing program running
 * Multi-user** - Allowing more than one network user to access the same file at the same time.
 * Security** - Setting passwords on the computer to block unwanted users, also deciding the privillages of people.
 * Input** - Inputting data such as from the keyboard and movements of the mouse
 * Output** - To the screen/printer
 * Prioritisation** - Deciding the the order of system requests

Popular Operating System are, Windows XP (Windows 7 has came out, however at the moment the rate of XP is higher), Windows Vista, Linux, Unix, Mac OS X snow leopard, Windows 7 You can get more specific ranking details at: [] Also there are operating systems designed to run on mobile devices such as smart phones and palmtops/PDAs -Palm OS, Symbian OS and Microsoft Windows Mobile.

User interface is how you interact with a computer and use it. Interfaces should consider the following two factors when designed. The screen design and color must be visually pleasing. Also, it has to work exactly in the same way each time they are used, included where all the menus are placed.
 * User** **Interface**

Command-line interface: Don't have any menus nor icons. It is suitable for experts, than casual computer users because you need to know the text commands to operate the computer.

Menu-driven interface: uses menus.

Graphical User interface (GUI): Uses windows, icons, menus and pointers (WIMP). It the most popular being user friendly, easy to use with icons representing an object.

Booting up - The process of starting a computer Bugs - Problems, error, flaws, failures, mistakes in the system
 * Vocabulary**