What is an Operating System?

An operating system, or OS, is software that enables you to operate the computer. It manages the opening of files, the monitor display, printing, access to networks, and so on. The chances are you are using a version of Windows as your operating system, but this is not the only OS available. Others include the various versions of linux (such as Ubuntu) which are generally available for free, and OSX, which is the latest operating system for Apple Macs. The various operating systems will tend to look different from one another, they will store files in different ways, and will also run different programs. So, a program written for Windows will not work on Linux unless it is run through an emulator or another piece of software that acts like a translator, such as WINE.

What on Earth is a GUI?

GUI (pronounced ‘gooey’) stands for Graphical User Interface, and this refers to all the visual elements of an operating system, all the windows, icons, menus, buttons, tick boxes, etc. The user can interact with each of these elements using a mouse or other pointing device, which helped to…

When you are using Windows Explorer - the file management program that opens when you double-click on ‘My Computer’ and the like - you can move to the parent folder by clicking the back-space key.

By ‘parent folder’ I mean the folder that contains the one you are looking at. In the following image we see that the ‘parent folder’ of Adobe is Program Files.

Another way to achieve the same thing is to press the F4 key followed by the up arrow, and then Return.

Note for Vista users: using the Backspace key in Vista mimics the use in web browsers, that is, it takes you to the previous folder you looked at. To go to the parent directory using Vista, hold down Alt and press the Up cursor.

Starting the Task Manager

There are a couple of ways to show the Windows Task Manager: hold down the Ctrl and Alt keys and press the Delete key - Task Manager will then open some versions of Windows, in others you will be presented with a small dialog box that has a button you can click to open the Task Manager; alternatively you can right-click on empty space on the Taskbar and select Task Manager from the menu.

Applications Tab

The first page on the Task Manager lists all the applications that are running on the PC. This mimics the list that you see as buttons on the Taskbar. If you highlight an application in the list and click the ‘End Task’ button that application will then close. This is particularly useful if an application has a status of ‘Not Responding’ when normal attempts to close it will fail.

The ‘New Task’ button works in the same way as the ‘Run’ item in the Start Menu.

Processes Tab…

Once in a while, Windows gets into a terrible state and the Taskbar and its Start menu disappear. This is because the software that manages these, called the Windows Explorer shell, has crashed. To deal with this, without logging off and on the computer, you have to end any existing sessions of Explorer and run a new one.

To end existing Explorer sessions hold down the Ctrl and Alt keys and press the Delete key. On some versions of Windows this will open up the ‘Windows Security’ dialog box, if so then press the ‘Task Manager’ button; on other versions you will be taken straight to the ‘Task Manager’ program.

To stop the Explorer shell, go to the ‘Processes’ page and look for ‘explorer.exe’. You can sort the processes into alphabetical order by clicking on the Image Name heading. If you find an entry for ‘explorer.exe’, highlight it and click the End Process button and click Yes on the warning dialog. If you don’t find an entry for it you can go straight to the next step.

To restart the Explorer shell, click on the ‘File’ menu in Task Manager and select ‘New Task…

Eye strain is a hazard to anyone who uses their computers for any extended period. So anything that eases the pressure on the eyes is a bonus. To this end, Microsoft have developed a tool for making text more legible called ClearType Tuner.

The ClearType Tuner only works on Windows Vista and XP, and is available as a web-based tool here. You will be required to choose which is the clearer text from a variety of options a couple of times, and then - hopefully - text should be clearer on your screen. Windows XP users can also download a Control Panel version from the Microsoft XP Power Toys page.

If you are a Vista user and wish to switch off ClearType check out Diana Huggin’s instructions on the excellent Lockergnome site.

The Windows Taskbar is usually to be found at the bottom of the screen, although it can be moved to any edge. It includes the ‘Start menu’ button, toolbars, a button for each application you are running, icons for other programs that are running, and the time.
I will gloss over the ‘Start menu’ button, because all it does is open the start menu, and move straight on to the toolbars. Most versions of Windows will display the ‘Quick Launch’ toolbar by default. This toolbar will look something like this.
To add a new button to this toolbar for a different application, simply drag and drop the application’s shortcut to the toolbar. You can drag and drop from the Desktop or from the Start Menu. To delete a button, right-click on it and select ‘Delete’.

There are a number of other toolbars available, including one that will offer shortcuts to the ‘Links’ directory in your Internet Explorer favourites. The Windows Media Player taskbar is quite stylish, if you switch it on and minimise Windows Media Player, it will show a toolbar that includes the media player’s controls rather than…