The primary difference between microSD and microSDHC cards is that microSD cards are limited to a storage size of two gigabytes, while microSDHC cards may have a storage capacity of up to 32 gigabytes. The added HC in microSDHC stands for high capacity. Older devices containing a microSD port, however, are not always compatible with microSDHC technology.Know More
MicroSD cards are miniature, about the size of a fingernail, digital storage devices. They are a type of flash memory and contain no moving parts, making them very durable if cared for properly. MicroSD and MicroSDHC cards are most commonly used in mobile electronics, such as cell phones and tablets.
The SD in microSD and microSDHC stands for secure digital, which indicates the type of technology used in these cards. Secure digital standards were developed by the SD association in an attempt to establish reliable, efficient and standardized flash memory technology. Hundreds of technology companies around the world have adopted SD standards for their products.
In addition to microSD, secure digital cards come in standard and mini formats. Standard-size SD cards are commonly used in cameras, and miniSD cards were developed for mobile phones but have largely been replaced by microSD cards. In 2009, Secure Digital introduced standards for microSDXC cards, which stands for extended capacity. These cards can store up to two terabytes of data.Learn more in Digital Storage
The primary difference between MasterCard and Visa credit cards for consumers is the number of places that accept each card. Other differences between the two credit card companies become important for individuals and businesses as their unique circumstances, including creditworthiness, come into play.Full Answer >
Flash memory cards consist of large numbers of individual cells, each of which contains a set of transistors. Under normal circumstances, current flows between the transistors and into a drain. When a charge is applied to one of the transistors, the current flow gets blocked. The amount of current passing through the cell effectively flips it from a one to zero, allowing for the storage of binary data.Full Answer >
SD memory cards work by recording data onto a solid-state chip inside the card using flash memory. The flash memory records information when electrical charges change in its circuits. A similar process erases portions of the memory for rewriting.Full Answer >
IDE is a standard mode of communication between a hard drive and a SATA-enabled motherboard, whereas AHCI is a newer, faster and more customizable mode of communication between hard drives and motherboards. When compatibility is not an issue, AHCI is the better of the two options because it gives better read and write times and more extensive design support than the older IDE does.Full Answer >