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SD Memory: They are a leading data storage media for its size and its compatibility with many devices

They weigh two grams. They measure a few inches high and just two wide. As for thickness, no more than three millimeters. But in an SD memory can record the complete discography of the Beatles. Its small size, its ability to store several gigabytes and compatibility with many portable devices, they have become little more than a coin in general use for transferring data from one device to another. It is not unusual to use the same memory card into the mobile phone's camera or camcorder, and laptop. This maintains the flow of data around the user's technology ecosystem. Since its birth, ten years ago, new models have been marketed specialized capabilities have increased and price has become popular.

SD memory cards (Secure Digital) storage media are widely used in portable technology devices such as cameras, mobile phones, MP3 players, camcorders and game consoles. They are the big winners of the great tide of flash memory cards small size that became popular in the late nineties. Derived from a previous model known as MMC, sponsored by Siemens and Sandisk. Your standards are governed by the Secure Digital Card Association.

Physical Characteristics

Although there are commercially available in two variants with a smaller size as MiniSD and MicroSD cards, the latter used in mobile phones with multimedia capabilities, standard dimensions are: 32 mm high, 24 mm wide and 2 1 millimeter thick. The variants can also be used in standard SD readers via an adapter, sold along with the memory card, MiniSD or MicroSD. However, the original reports (factory) of 3G mobile phones do not include the adapter, so you have to buy it later. Appeared in 1999 and, initially, they thought of them as a system to protect copyright of intellectual works

Appeared in 1999 and, initially, they thought of them as a system to protect the copyrights of intellectual work, as they have a sophisticated method of encryption. The first were used by Kodak, Casio, Hewlett Packard, Nikon, Minolta, Panasonic and Toshiba, but now they accept almost all devices except the Sony brand, which have their own "Memory Stick".

It is rare to accept them, however, the desktop computers. For its use is recommended to buy an external drive with USB connectivity, for a price below 20 euros. However, many devices incorporate SD card readers, from laptops to multi-function printers and multimedia devices. This will facilitate the processing of data in different devices, since it can directly access the card without an intermediate device or external reader. The capacity of these memory cards has grown exponentially in recent years. While in 2005 a typical SD card had a capacity of between 128 megabytes and 512 megabytes, some cards now reach 64 gigabytes of capacity, ie, 65,536 megabytes.

You can get a picture and immediately remove the card from the camera to introduce it into the reader slot of the laptop. You may obtain a digital photograph and immediately, removing the card from the camera to introduce it into the reader slot of the laptop and move the image to digital editing software or hard drive. Then it can save the edited version or upload to a web service like Flickr. Another option would be removing the card from the camera and insert it into the slot on the printer, without using the computer.

SDHC, designed for digital imaging

Among the SD cards are differences in transfer speeds. Certain devices such as cameras and camcorders, they need higher-speed cards to record them quickly. The format SDHC (Secure Digital Hight Capacity) is a system developed by Panasonic to work with this range of next-generation multimedia devices and thereby guarantee a transmission rate that does not distract from the main functions. SDHC cards need not be the fastest who are in the market, but it guarantees a minimum transfer rate.

SDHC cards need not be the fastest who are in the market, but it guarantees a minimum transfer rate. SDHC cards are categorized into different classes determined by the speed of data transmission that guarantees minimum. The last of these appeared on the market is in Class 10, which raised the minimum transfer at 10 megabytes per second. By using SDHC cards, it should be noted that only work on devices that support this format (usually indicated by a logo on the casing of the device), but your readers can be used with SD cards. In addition, some products are only compatible with the SDHC format to a storage limit. Therefore acquire a higher capacity card could be useless.

SDXC, the format of the future

Whether the reader is used, another of the limitations of the SDHC format is its storage capacity, set at 32 gigabytes or less. To overcome this limit, Toshiba launched in early 2009 SDXC format, which present themselves as the continuation of SDHC cards.

SDXC be used on cards with storage capacity ranging from 32 gigabytes and 2 Terabytes

In SDXC, the transfer rate for writing (get info) is guaranteed at 35 megabits per second, while the reading speed (pour information) up to 60 megabits per second. This new format will be used on cards with storage capacity ranging from 32 gigabytes and 2 terabytes (1,000 gigabytes), although the flash memory card largest capacity SDXC made to date is 64 gigabytes and will be available in the market from November .

However, these cards are not compatible with any portable device market. Therefore, its success is not assured until the device manufacturers do not throw that read this format. Memory Stick Pro Duo Sony. In the late nineties, Sony released its first report card format storage "Memory Stick" for the Japanese devices such as computers, mobile phones, cameras, camcorders or games consoles such as PSP. Such cards were replaced later by the Memory Stick Pro and then the Memory Stick Pro Duo, a smaller than earlier designs.

Today, the Memory Stick PRO Duo cards have versions of 4 to 32 gigabytes. The latter format is the highest capacity achieved by Sony. It is designed for camcorders that record in high definition. With this card, users can store up to 225 minutes of video in Full HD quality (ie, 1920 pixels x 1080 pixels) or up to 75 hours of MPEG4 video format. The suggested retail price in stores is 155 euros. What is a Memory Card? Memory cards are one option for the storage of various types of electronic data. Sometimes referred ... What is a Memory Card Reader? A memory card reader is a device that can read flash memory cards and transfer their contents to a comp ... What is a SD Memory Card? A Secure Digital (SD) memory card is a portable flash memory chip used in devices like digital cameras, cellular phones ... What Is an SD Card Reader? SD cards are small storage devices that are used to supply or increase the memory capacity of another ... What Are Secure Digital Memory Cards? Secure digital (SD) memory cards are flash memory cards which meet the standards of the Secure Digital Association, a ... What Is an SD Card Adapter? Many portable devices use Secure Digital (SD) cards. These cards are designed to be convenient for storing data and transferring it from one de ... ... tination computer. This allows the use of the card inside a device designed for the different sized memory card. An SD card is a type of flash memory for data storage in digital devices. On 25 Augu ... How Do I Choose Between SD Card Cases? There are many devices that operate with SD cards. If you have one or more of those devices, you may want to start looking at SD card cases. T ... How Do I Choose the Best SD Card Holder? SD cards are used as memory storage devices for cell phones, digital cameras, and personal computers. ... What is a MicroSD Card? ... audio players and recorders. One of the primary formats for these portable memory sources is a microSD card. A microSD card is one of the smallest flash memory cards on the market today. It is manuf ... More and more these days, users of portable electronic devices are storing data on portable memory sources. This is true especially for users of mobile phones, portable global positioning syste ... What are the Different Types of Micro SD Memory Cards? Micro SD memory cards are among the smallest memory cards used by most consumers. They are most prominent i ... What Is an SDHC Card Reader? Secure digital high capacity (SDHC) cards usually are used as additional storage in various electronic devices. They have the abili ... ... in cooperation with Panasonic and the Toshiba Corporation, developed the first secure digital (SD) memory card in August of 1999. Since that time, there have been numerous developments on the original ... How Do I Restore SIM Card Memory? ... be erased of important data, including human error and viruses. The primary way to restore SIM card memory is to purchase or download a SIM card recovery software system. There are many types of progra ... What is a Smart Card? ... s are found in practically every cellular telephone on the market. When a smart card contains only memory elements, it is called a memory card. Memory cards, usually a bit thicker and smaller than th ... A smart card is any card that has an integrated circuit on it. A smart card lacks batteries, as the size of ...