The basic functioning unit of the kidney is called the nephron. The kidneys together comprise greater than 2 million nephrons, and each is capable of forming urine. The nephrons function is to clean the blood of unwanted substances as it flows past.
disk drive. n. Computers. A hardware device that reads data stored on a disk and writes data onto the disk for storage. disk drive. n. (Computer Science) computing the controller and mechanism for reading and writing data on computer disks. See also disk2.
Making the world better, one answer at a time. A hard disk is a type of hard drive; it is the type of hard drive that involves magnetic platters and spinning parts. There are other types of hard drives, namely Solid State Drives (SSDs). These use flash memory, and, true to their name, have no moving parts. hard disk drive is the motor and controller of the hard disk, which is the set of platters and spindle. Various users will use these terms in different or identical ways. T â¦ echnically the disk is just the aluminium or glass disk that is coated with a magnetic surface.