(Image credit: Toshiba) In a world of rapidly developing artificial intelligence, the supply of computer hardware can barely meet demand, and at this point, long-term supply agreements (LTAs) become compulsory. When it comes to storage — both hard disk drives and solid-state drives — LTAs now span from three to five years, depending on the device. While some may argue that now all the supply will get to large customers, such agreements with guaranteed offtake may actually be good for consumers. Up to five year LTAs "The duration of this agreement varies, with the longest contract extending to five years," said Luis Visoso, chief financial officer of SanDisk, in an earnings call with analysts and investors. "In aggregate, volume commitments increased during the life of the contracts with quarterly commitments and a combination of fixed and variable pricing.…