In a few short years since the launch of the first 4Mb flash memory card, the number of flash memory cards available for digital cameras and other devices has exploded with a number of different formats and speeds of memory card. It's no wonder the average person is totally baffled by this plethora of memory cards.
Laptop Battery Not only are there different shapes (the format) and sizes such as Secure Digital (SD) Compact Flash, Memory Stick etc, but also different speed ratings.
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Thinkpad Memory card speed is the card's performance with regard to how quickly data can be transferred to or from it. The card speed is often stated in 'Times' ratings i.e. 12X, 40X etc (just as the speed of recordable CD's and DVD's is measured), and sometimes more specifically in megabytes per second (Mb/s). By today's measure, sub 20X represents a standard speed, 20X to 40X is mid-high speed and over 40X is high speed. The chart below shows the relationship between the two figures.
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A trademark of PCMCIA. related peripheral.
- A PCMCIA (Personal Computer Memory Card International Association) card.
- This term must be clarified as to whether PCMCIA is intended or another type of card for a PC compatible computer, such as ISA, MCA (Micro Channel Architecture) EISA or PCI.
- Any expansion card that might be used in a personal computer. The PC is first IBM Personal Computer sold in August '81. bit PC bus connector slots, ( bit ISA bus slots). bit slot compatible.
Microsoft 8X = 1.2 Mb/sec
12X = 1.8 Mb/sec
20X = 3.0 Mb/sec
25X = 3.8 Mb/sec
30X = 4.5 Mb/sec
40X = 6.0 Mb/sec
60X = 9.0 Mb/sec
66X = 10.0 Mb/sec
80X = 12.0 Mb/sec
90X = 15.0 Mb/sec
133X = 20.0 Mb/sec
The speed with which memory can communicate with your computer Quite simply this is how fast a module of memory can communicate with your computer.
Laptop Computers Why do we need different or higher speeds cards?
This is mainly due to the advancement of our digital devices, especially digital cameras, camcorders and music devices. As manufacturers develop higher and higher spec devices (i.e. higher resolution cameras and more intense multi-media functions), they are creating increasingly larger amounts information to store pictures, movies, music and so on. This in turn takes longer to record onto the memory card. For example if you have ever used a high megapixel camera with a standard speed card you may have noticed the time lag between pressing the shutter button and being able to take the next picture. This lag or delay, in most cases is caused by a slow write speed, similarly copying your photos to your PC could take time too and is caused by a slow read speed.
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Laptop Computer
So who really needs high-speed memory cards?
Professional photographers and enthusiasts using professional grade cameras such as digital SLR's should use high-speed memory cards of at least 40X speed. If you own a camera with a megapixel rate above three million pixels, you will certainly benefit from a card with a higher speed rating. If you're like most of us using a compact camera under 3 million pixels, you'll get great performance from standard cards with 12X or more.
Speed universal memory card reader. Has 5 slots to support all types of memory cards. laptops to cards and between different cards. Convenient built in USB cable. Fully plug & play compatible. USB extension cable included. USB2.0 Hi speed transfer, Secure Digital High Capacity.
Desktop Computer Those using digital camcorders and devices recording MP3 music or video will also benefit from higher speed cards. It used to be the case where very few people would actually benefit from very high-speed cards, typically only professionals who used expensive, specialized products benefited, but it's fast becoming a requirement on many of the latest PDA's, Cameras, phones and other mobile devices to make use of the extra speed made available by high speed cards.
Notebooks People using high speed memory cards with equipment that has been on the market a while may not notice any difference in performance, but this has more to do with the limitations of the device than the flash card itself. This is because not only does your memory card have a maximum speed rating, but your camera or mobile phone will also have its own speed rating. When these products are combined, they'll work at the "slowest common denominator" e.g. if you use a 12X flash card in a camera with a designed for a maximum of 8X speed, you'll be transferring data at the slower 8X speed.
Lenovo You should always check the capacity of your device before splashing out on mega fast cards, but determining the speed compatibility of your device can be tricky. Most manuals just don't tell you what speed of flash card you should use, now that would be far too easy, but they do tell you to buy their brand, which isn't much help! So a general rule of thumb, if your camera is less than three megapixels the speed rating of the flash card doesn't matter much. Most modern cameras have the ability to support far higher speeds than the cards available to purchase today, therefore, if speed is of importance, go for a faster card. Most mobile phones, PDA's and Satellite Navigators are fine with standard speed cards although some newer models will benefit from higher speed cards but not generally over 60X speed.
Hard Drive The internet is a good resource to find out about your device, but in our experience the device retailer and forums are not always the best source of information, you would be better to seek information from the manufacture's website or from dependable review sites.
Travelstar If you are in any doubt about the card you require or even desire, you can always call us at Mouse2house.co.uk on 0845 257 2088 and we will do our best to guide you in the right direction.
Gateway If you are in any doubt about the card you require or even desire, you can always call us at Mouse2house.co.uk on 0845 257 2088 and we will do our best to guide you in the right direction.
Laptop Parts Article by Iggy Quazi director of Ecommerce business Mouse2House based in Essex, England stocking a wide range of digital imaging devices. For more info see http://www.mouse2house.co.uk for the latest digital media products. For Flash Memory Cards visit http://www.mouse2house.co.uk/index.php?CatURN=637
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Hard Drives Iggy Quazi is director of Ecommerce business Mouse2House based in Essex, England stocking a wide range of digital imaging devices.
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