What is a common characteristic of Synchronous Dynamic RAM (SDRAM) used in laptops?

Synchronous Dynamic RAM (SDRAM) indeed stores each data bit as an electrical charge, which is a fundamental characteristic shared with other types of Dynamic RAM (DRAM). In SDRAM, data is stored in capacitors, where each bit of information is represented by charge levels—either charged (representing a '1') or uncharged (representing a '0'). This method allows SDRAM to hold data in a way that can be quickly accessed and refreshed, which is essential for maintaining data integrity while the system is in operation.

Being synchronous means that SDRAM is synchronized with the system's bus speed, allowing for higher performance and faster data transfer rates compared to older types of DRAM that were not synchronized. The electrical charge storage aspect is critical in defining how SDRAM functions and underpins its design and performance metrics commonly used in modern laptops.