1 Around 10% of men is affected by pearly penile papules.  After masturbation or sexual intercourse hard swelling might appear near the foreskin, in the shaft of the head of the penis. This swelling is called lymphocele, and is caused by temporary blockage of the lymphatic channels at the area described.
A key-value store, or key-value database, is a data storage paradigm designed for storing, retrieving, and managing associative arrays, a data structure more commonly known today as a dictionary or hash. Dictionaries contain a collection of objects, or records, which in turn have many different fields within them, each containing data.
From Wikipedia, the free encyclopedia. Disk storage is a general category of storage mechanisms where data are recorded by various electronic, magnetic, optical, or mechanical changes to a surface layer of one or more rotating disks. A disk drive is a device implementing such a storage mechanism. Notable types are the hard disk drive (HDD) containing a non-removable disk, the floppy disk drive (FDD) and its removable floppy disk, and various optical disc drives and associated optical disc media.