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.
Categorizing Storage Devices â¢ Storage devices hold data, even when the computer is turned off. â¢ The physical material that actually holds data is called a storage medium. The surface of a floppy disk is a storage medium. â¢ The hardware that writes data to or reads data from a storage medium is called a storage device. A floppy disk drive is a storage device. â¢ The two primary storage technologies are magnetic and optical.