
Solar energy is and from the that is harnessed using a range of technologies such as to generate , (including ), and . It is an essential source of , and its technologies are broadly characterized as either or active solar depending on how they capture and distribute sola.

Solar power, also known as solar electricity, is the conversion of energy from into , either directly using (PV) or indirectly using . use the to convert light into an . Concentrated solar power systems use or mirrors and systems to focus a large area of sunlight to a hot spot, often.

Energy storage is the capture of produced at one time for use at a later time to reduce imbalances between energy demand and energy production. A device that stores energy is generally called an or . Energy comes in multiple forms including radiation, , , , electricity, elevated temperature, and . En.

IBM i (the i standing for integrated) is an developed by for . It was originally released in 1988 as OS/400, as the sole operating system of the line of systems. It was renamed to i5/OS in 2004, before being renamed a second time to IBM i in 2008. It is an evolution of the operating system, with compatibility layers for . IBM had two distinct POWER- and PowerPC-based hardware lines since the early 1990s: • Servers running processors based on the architecture in the family (later known as iSeries, then System i) running OS/400 (later known as i5/OS, and now )