It became a national holiday in 1948, but it has been a day of celebration in Japan since ancient times. The fifth day of the fifth month was traditionally called Tango no Sekku and was a festival for boys. Girls have their own festival, called Hina Matsuri (Doll Festival), held on the third day of the third month.
Expressions full disk encryption (FDE) or whole disk encryption signify that everything on disk is encrypted, but the master boot record (MBR), or similar area of a bootable disk, with code that starts the operating system loading sequence, is not encrypted.
Definition - What does Full-Disk Encryption (FDE) mean? Full-disk encryption (FDE) is the encryption of all data on a disk drive, including the program that encrypts the bootable OS partition. It is performed by disk encryption software or hardware that is installed on the drive during manufacturing or via an additional software driver.