A+ Certification : 4.0 Understanding Operating System (Essentials)

All deleted files are placed in the Recycle Bin. Deleted files are held there until the Recycle Bin is emptied. Users can easily recover accidentally deleted files from the Recycle Bin.

The screensaver can be changed system. To access the Display Properties dialog box, you can either right-click anywhere on the Desktop and choose Properties from the menu that appears or go to the Control Panel and open the Display applet.

To turn off a Windows 2000 machine, select Start -> Shut Down, choose Shut Down, and turn off the computer.

By default, the Desktop contains the Start menu, the Taskbar, and a number of icons. Because it is the base on which everything else sits, how the Desktop is configured can have a major effect on how the GUI looks and how convenient it is for users.

Device Manager is used in Windows to configure all hardware resources that Windows knows about.

Linux is an open-source operating system. Neither the Mac OS nor any of the Windows operating system are open source.

Keep in mind that in Windows XP, you have to unlock the Taskbar first by right-clicking on it and deselecting Lock The Taskbar.

To run any program, slect Start -> Run and type the name of the program on the Open field. If you don't know the exact name of the program, you can find the file by clicking Browse button. Once you have typed in the executable name, click OK to run the program.

The Backup utility is provided with all versions of Windows, but it has different levels of functionality in the different versions.

FAT32 does not have as many options as NTFS, such as Encryption and Compression. These attributes are available only on NTFS partitions.

The first 32-bit preemptive multitasking system was Windows 95. Windows 95 can emulate and support cooperative multitasking for programs that require it. It also supports both 32-bit and 16-bit drivers as well as DOS drivers, although the 32-bit drivers are strongly recommended over the DOS ones because they are far more stable and are faster.

There are five basic hives in the Windows Registry, and they are HKEY_CLASSES_ROOT, HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE, HKEY_USERS, and HKEY_CURRENT_CONFIG. HKEY_LOCAL_MACHINE stores information about the computer's hardware. HKEY_CURRENT_MACHINE, HKEY_MACHINE, and HKEY_RESOURCES do not exist.

In Windows 2000 (and XP for that matter), filenames can be no longer than 255 characters. Under DOS, files were limited by the 8.3 standard of 8 characters plus a 3-character file extension.

Virtual memory settings are accessed through the Performance tab or area of the System control panel.

The OS boots from the active partitions. Active partitions must be primary partitions, but a primary partition does not have to be active (as there can be up to four primary partitions per hard drive)

The NTLDR file bootstraps the system (is the initial file that starts the operating system) and in turns load the BOOT.INI. There is no file called BOOTSTRAP.EXE, and NTBOOTDD.SYS is called only if you're using a SCSI boot device.

The Windows Explorer program can be used to copy and move files and to change file attributes.

If an application is locked up, you can use Ctrl+Alt+Del to reboot. You can also use Task Manger to deal with applications that have stopped responding.

Standard permissions, unlike special permissions, have been grouped together to make it easier for administrators to assign permissions.