Dell Inspiron 1521 Owner's Manual - Page 199
CD-RW drive, clock speed, Consumer IR, Control Panel, controller, CRIMM, cursor, DDR SDRAM, device
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CD-RW drive - A drive that can read CDs and write to CD-RW (rewritable CDs) and CD-R (recordable CDs) discs. You can write to CD-RW discs multiple times, but you can write to CD-R discs only once. CD-RW/DVD drive - A drive, sometimes referred to as a combo drive, that can read CDs and DVDs and write to CD-RW (rewritable CDs) and CD-R (recordable CDs) discs. You can write to CD-RW discs multiple times, but you can write to CD-R discs only once. clock speed - The speed, given in MHz, that indicates how fast computer components that are connected to the system bus operate. CMOS - A type of electronic circuit. Computers use a small amount of batterypowered CMOS memory to hold date, time, and system setup options. COA - Certificate of Authenticity - The Windows alpha-numeric code located on a sticker on your computer. Also referred to as the Product Key or Product ID. Consumer IR - A port on the front of the computer that allows certain software applications to be controlled by the Dell Travel Remote in some systems. In other systems, this port allows you to transfer data between the computer and infraredcompatible devices without using a cable connection. Control Panel - A Windows utility that allows you to modify operating system and hardware settings, such as display settings. controller - A chip that controls the transfer of data between the processor and memory or between the processor and devices. CRIMM - continuity rambus in-line memory module - A special module that has no memory chips and is used to fill unused RIMM slots. cursor - The marker on a display or screen that shows where the next keyboard, touch pad, or mouse action will occur. It often is a blinking solid line, an underline character, or a small arrow. D DDR SDRAM - double-data-rate SDRAM - A type of SDRAM that doubles the data burst cycle, improving system performance. DDR2 SDRAM - double-data-rate 2 SDRAM - A type of DDR SDRAM that uses a 4-bit prefetch and other architectural changes to boost memory speed to over 400 MHz. device - Hardware such as a disk drive, printer, or keyboard that is installed in or connected to your computer. device driver - See driver. Glossary 199