Every planet in the solar system has its own rotation time. Earthâs solar day and sidereal day are nearly the same, but some other planets are very different. Mercuryâs sidereal day is equivalent to 59 days, but its solar day is 176 days!
Pen Drive also referred as USB flash drive is a portable device which allows user to transfer data (text, images, videos etc) to and from computer quickly. Users can easily read and write the data on the Pen Drive by plugging it into the USB port on the computer.
Pen drive is another name used to describe a certain type of universal serial bus (USB) flash drive. Pen drives are NAND-type flash memory cards that can be plugged into a computer's USB port. The term Pen refers to its size. This type of flash drive is so small that it can fit into the palm of your hand or hang on a lanyard.