Frequently Asked Questions About USB Flash Drives

- Mar 28, 2017 -

  1. what is usb flash drive

A USB flash drive, also variously known as a USB drive, USB stick, thumb drive, pen drive, jump drive, flash-drive or USB memory,  is a data storage device that includes flash memory with an integrated USB interface. USB flash drives are typically removable and rewritable, and physically much smaller than an optical disc. Most weigh less than 30 grams (1.1 oz). Since first appearing on the market in late 2000, as with virtually all computer memory devices, storage capacities have risen while prices have dropped. As of March 2016, flash drives with anywhere from 8 to 256 GB are frequently sold, and less frequently 512 GB and 1 TB units.Storage capacities as large as 2 TB are planned, with steady improvements in size and price per capacity expected. Some allow up to 100,000 write/erase cycles, depending on the exact type of memory chip used, and have a 10-year shelf storage time.

2.What Do People Use USB Flash Drives For?

Because of their extreme portability (most weigh in at an ounce or less), the most common purpose for USB flash drives is transferring files between computers at different locations. As their storage capacity has increased, they have also become more and more useful for backing up important files from your PC’s hard drive and storing them in a secure location.

3.What Does “Mbps” Mean, and Why Is It Important?

Mbps stands for “Megabits per second,” and simply means the speed at which your files will be transferred from your PC to a device—in this case, a USB flash drive. The speed can range from 30 or 50 Mbps to many hundreds. Generally, the larger your USB flash drive’s capacity, the quicker it will be able to transfer your files. This is because larger files need to be transferred faster.

The statistic itself is not particularly important. Most flash drives will have similar speeds for their capacity, and none of them will be so noticeably slow that you need to avoid it.

4.How Can USB Flash Drives Be So Small?

USB flash drives use solid state flash technology, which stores data without using moving parts, as most physically larger internal PC hard drives do.




Previous:Basic knowledge about mobile power Next:USB transmission mode