WEBVTT

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Flash memory cards like flash drives, flash memory cards or memory cards as they are fondly referred

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to.

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Also use Nand flash memory, which, as we previously learned, is a non-volatile solid state memory.

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Unlike USB flash drives, however, these cards do not come with a USB interface and must be used with

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either an adapter or memory card reader.

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Over the years and decades, we've had several formats of memory cards graced our desktops, laptops,

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mobiles and other devices, including cameras, MP3 players and even toys.

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Although I'll only cover some of the more popular cards used today, it is important that you are at

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least familiar with memory cards and are also able to identify them.

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The flash memory card types we will look at are as follows.

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Memory Stick Pro Duo Mspd Proprietary Card developed by Sony.

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Secure Digital.

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SD Secure Digital High Capacity Sdhc two.

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232 GB capacity.

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Many Sdhc Microsdhc Secure digital extended capacity Sdhc 32GB two TB capacity.

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Compact flash cf Multimediacard.

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Emmc.

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Xd-picture XD.

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Smartmedia.

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Some of the aforementioned card types.

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I've opted to show three from my collection in the following photo.

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The card to the left is a Sony memory Stick pro duo.

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The card in the middle is an SD card that has a sliding lock to the side used to prevent data from being

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overwritten.

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And the card to the right is the more common card of today, the micro SD.

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I'd like to do a brief comparison of these three cards developed at least a decade apart.

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The older Du card is larger with a capacity of two gigabytes, although not seen on the SD card.

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Its capacity is four gigabytes and the smallest and newest car to the right.

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Micro SD actually has a whopping 64GB of storage capacity.

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Have a look at the following photo to see a close up of the micro SD card.

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It shows the capacity of 64GB and also the class of the micro SD card class, 1060 four gigabytes of

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data on something as small as a fingernail.

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Still, micro SD cards are being developed with even larger capacities of 128GB and even 256GB.

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The various classes of micro SD cards identify their reads, slash write speeds and suggested uses.

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I do suggest getting a class ten C ten micro SD card.

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If purchasing one as the C ten is much faster than the other classes two, four and six and supports

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constant HD and even 4K video recording.

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Classes two, four, six and ten support speeds of up to two MEPs, four MEPs, six MEPs and ten MEPs

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respectively, and are known as SD Speed Class.

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Class one and Class three are known as the HS speed class and support speeds of up to ten MEPs and 30

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maps respectively.

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The newer video speed class, which is recommended for HD video in 4K and 8-K, supports much faster

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speeds.

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The v ten v 30 v 60 and v 90 cards support speeds of up to ten minutes, 30 maps, 60 Mbps and 90 MEPs

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respectively.

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As mentioned earlier, flash memory cards require card readers which connect to laptops, desktops and

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other media players using USB ports.

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The following photo shows one of my many card readers which supports compact flash memory Stick, pro

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duo, Secure Digital and even the Smartmedia cards.

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I'd suggest getting yourself a few USB card readers that support the various card types to easily access

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cards, whether for ordinary use or data recovery.

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As most newer laptops, desktops and devices may only support SD card slots and USB interfaces here.
