Ten years ago today, Apple announced the original iPod, an early step in the computer maker’s evolution into a consumer electronics giant. Designed solely to store and play music, the first iPod was distinguished by its unusually small size for a then-considerable 5 Gigabytes of storage space, enough to hold roughly 1,000 songs. With a clear and white plastic face and a mirror-polished stainless steel back, the iPod used a physically moving…