Dell Optiplex-620 User Guide - Page 50

ScanDisk - A Microsoft utility that checks files, folders, and the hard disk's surface for errors. ScanDisk often runs when you restart the computer after it has stopped responding. SDRAM - synchronous dynamic random-access memory - A type of DRAM that is synchronized with the optimal clock speed of the processor. serial connector - An I/O port often used to connect devices such as a handheld digital device or digital camera to your computer. Service Tag - A bar code label on your computer that identifies your computer when you access Dell Support at support.dell.com or when you call Dell for customer service or technical support. setup program - A program that is used to install and configure hardware and software. The setup.exe or install.exe program comes with most Windows software packages. Setup program differs from system setup. shortcut - An icon that provides quick access to frequently used programs, files, folders, and drives. When you place a shortcut on your Windows desktop and double-click the icon, you can open its corresponding folder or file without having to find it first. Shortcut icons do not change the location of files. If you delete a shortcut, the original file is not affected. Also, you can rename a shortcut icon. shutdown - The process of closing windows and exiting programs, exiting the operating system, and turning off your computer. You can lose data if you turn off your computer before completing a shutdown. smart card - A card that is embedded with a processor and a memory chip. Smart cards can be used to authenticate a user on computers equipped for smart cards. software - Anything that can be stored electronically, such as computer files or programs. S/PDIF - Sony/Philips Digital Interface - An audio transfer file format that allows the transfer of audio from one file to another without converting it to and from an analog format, which could degrade the quality of the file. standby mode - A power management mode that shuts down all unnecessary computer operations to save energy. surge protectors - Prevent voltage spikes, such as those that may occur during an electrical storm, from entering the computer through the electrical outlet. Surge protectors do not protect against lightning strikes or against brownouts, which occur when the voltage drops more than 20 percent below the normal AC-line voltage level. Network connections cannot be protected by surge protectors. Always disconnect the network cable from the network connector during electrical storms. SVGA - super-video graphics array - A video standard for video cards and controllers. Typical SVGA resolutions are 800 x 600 and 1024 x 768. The number of colors and resolution that a program displays depends on the capabilities of the monitor, the video controller and its drivers, and the amount of video memory installed in the computer. S-video TV-out - A connector used to attach a TV or digital audio device to the computer. SXGA - super-extended graphics array - A video standard for video cards and controllers that supports resolutions up to 1280 x 1024. SXGA+ - super-extended graphics array plus - A video standard for video cards and controllers that supports resolutions up to 1400 x 1050. system board - The main circuit board in your computer. Also known as the motherboard. system setup - A utility that serves as an interface between the computer hardware and the operating system. System setup allows you to configure userselectable options in the BIOS, such as date and time or system password. Unless you understand what effect the settings have on the computer, do not change the settings for this program.