How To Select A USB Flash Drive.

USB flash drives are short name for flash memory data storage devices which is connected through a USB - universal serial bus - interface of a PC or Laptop, where you can store any kind of files. This was introduced to the market in the year 2000.

Flash drives take a big role in the PC or Laptop repair operation. This helps to transfer recovery and anti virus software to virus infected PC or Laptop, and if necessary some data from the computer can be archived. For repairing, a write protected device is better as it will not get infected.

Also Live USB can be used to boot computers as bootable Live CD.

They are available in 128Mb to 64Gb in size. The most popular one is 128Mb as the capacity goes high, the price too go high. If the product is damaged it is gone. So it is better to buy a new one with low capacity and low price, if you are not dealing with big files.

USB Flash Drive is very popular with PC users and it is better than Floppy disk and CD's when comparing it's size, weight, quick to access, capacity and the appearance. This USB comes with a cap and made of thin metal or plastic cover where inside have a printed circuit board.

These flash drives have USB 2.0 connectivity. This don't need power supply for the operation. Once connected to the PC or Laptop via USB host controller built into the computer, or into a USB hub, it will take the power from that connection. When the device is not connected to the PC or the laptop it will stay ideal, once connected it will emit light through the LED when reading or writing datas. If you are going to buy big capacity ones, you may need to supply power to it.

There are some FD's coming with write protection switch to protect data files from accidental deleting.

FD's have limited (number of times) writing and erasing operations before it fails. And can be infected with virus and then send it to other computers when connected with out the knowledge of the operator. To prevent this use good Anti virus programs.