Components of USBs (Universal Serial Bus)
Internal components of a typical USB memory
1 USB connector
2 Control Device USB Mass Storage
3 Points Test
4 Flash Memory Circuit
5 Crystal Oscillator
7 Power scriptures safety
8 Space available for a second flash memory chip
The typical parts of a USB memory are:
A male USB connector type A (1): Provides the physical interface with the computer.
USB mass storage controller (2): Implements the USB controller and provides linear homogeneous interface for USB serial block-oriented, while hiding the complexity of orientation blocks, removing blocks and balance of wear.
A typical device may also include:
Jumpers and Test Points (3): Used in testing during manufacture of the unit or for loading code into the processor.
LEDs (6): Indicates data transfer between the device and the computer.
Write protect switch (7): Used to protect data write or erase operations.
Clearance (8): There is a space to include a second memory circuit. This allows manufacturers to use the same board for devices of different sizes and cater to market needs.
USB connector cover: Reduces the risk of injury and improves the appearance of the device. Some units do not have a cover but feature a retractable USB connection. Other devices have a rotating cover that never separates from the device and avoids the risk of losing it.
Aid for transmission: In many cases, the cap contains a suitable opening for a chain or necklace, however this design increases the risk of losing the device.
For this reason many others have said opening in the body of the device and not at the top, the disadvantage of this design is that the chain or necklace is attached to the device while connected. Many designs bring the opening in both places.