Computer Memory Card – How Good Are They?
Computer Cards Computer cards typically include a battery to provide power to retain information in memory and for operations, such as input and output functions. Such computer cards may provide memory expansion for data storage. Memory cards generally consume only minimal amounts of current. Therefore, the battery used by memory cards may last several years. But during periods of time when a computer card is detached from a host computer, the computer card continues to draw current, if only for memory support, therefor draining the battery. When the computer card is hooked to a host computer, the computer can recognize the low voltage as an indication of low battery. In some cases a message may be displayed by the computer alerting you of a low battery. However, most computer cards are unable to independently alert a user of a low battery condition. Because the computer cards are small insize, the battery is usually very small, resulting in limited battery capacity, Because they are s
