kovalevyä

Kovalevyä is the Finnish word for hard disk drive. A hard disk drive, often abbreviated as HDD, is a non-volatile storage device that stores digital data using magnetic storage. It consists of one or more rigid rapidly rotating platters coated with magnetic material. Data is read and written by magnetic heads that move over the platters.

Hard disk drives are a fundamental component in most computers, serving as the primary storage for the operating system, applications, and user files. They offer high storage capacities at a relatively low cost compared to other storage technologies like solid-state drives (SSDs). However, HDDs are mechanical devices, making them susceptible to physical shock and generally slower in data access and transfer speeds than SSDs.

The development of the hard disk drive began in the 1950s, with IBM releasing the first commercial HDD, the RAMAC 305, in 1956. Early HDDs were massive and had very limited storage capacity by today's standards. Over the decades, significant advancements have been made in terms of capacity, size, speed, and reliability.

Despite the rise of solid-state drives, hard disk drives remain a popular choice for bulk storage solutions due to their cost-effectiveness and large capacities. They are commonly used in desktop computers, servers, and external storage devices where large amounts of data need to be stored affordably.