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All kinds of important files are stored on our computer such as personal photographs, music files, word documents, spreadsheets and PDF’s. Sometimes, it is necessary for these files to NOT be stored directly on the hard drive of your computers. At times it is a good idea to make backup copies of information on your computer for the purposes of security. If your computer isn’t kept in a secure location or if you’re worried about theft, it is necessary to have a way to save files that you can keep separate from the computer. Sometimes you would like to share files easily with another computer in a different location. Sometimes email can’t handle the size of the files with ease. These scenarios are where flash computer memory comes in.

Computer memory has developed and changed tremendously since the computer was invented. It has changed based on our needs and as new devices are available. The industry of computer memory and peripherals continues to grow at an alarming rate. Of these developments, flash memory is probably the most useful progress.

A doctor working at Toshiba invented flash memory around 1980. It was first commercially available by Intel in 1988. It is a non-volatile form of computer storage that can be electrically erased and reprogrammed. Flash memory is a type of EEPROM, which stands for Electronically Erasable Programmable Read Only Memory. Flash memory is primarily used in memory cards and USB flash drives. It is used for general storage or for transfer of data between computers and other digital devices. Examples of flash memory are found in PDA’s, laptop computers, digital audio players such as an iPod, digital cameras and mobile phones.

Flash memory is extremely durable when packaged in a memory card – like those used in digital cameras. These cards can even be read after they’ve been physically damaged or immersed in water. No power is needed to maintain the information stored on the chip. This type of memory can be read from devices other than the ones they are intended for. This makes it possible for pictures to be taken on your camera and then added to your computer files via a memory card with no cord needed. There are a few reasons to use flash memory instead of a hard disk. Flash memory has no moving parts so it is completely quiet. It also allows faster access and is smaller in size and lighter.

There are two common types of removable flash memory media – SmartMedia (Toshiba) and CompactFlash (Sandisk). SmartMedia is a solid-state floppy-disk card. The capacities on these cards range from 2MB to 128MB. The card has a notched corner tells the user of the power requirements for the card. With the electrode facing up, if the notch is on the right it needs 3.3 volts. If it’s on the left it needs 5 volts. These cards are less durable and should be handled with more care than others. CompactFlash cards are thicker and use a controller chip. These cards will operate at dual voltages and have greater storage capability than SmartMedia. These sizes range from 8MB to 100GB!

With a basic understanding of flash memory any user can safely transport and protect the files from their computer and any other device.