San Francisco (sans-serif typeface) and iOS 10 is a new variant named "SF Compact Rounded". It is used in the new contact placeholder icons introduced in the OSes. The "SF Serif" variant was showcased during the keynote at WWDC 2018 on June 4, 2018 when the all-new Apple Books app was introduced. This variant is exclusive to Apple Books in iOS 12 and macOS Mojave, is not mentioned in Apple's Typography design guidelines, and is not publicly downloadable like other variants of the San Francisco typeface. Since its introduction, San Francisco has gradually replaced most of Apple's other typefaces on their software and hardware
Storage Technology Corporation Storage Technology Corporation Storage Technology Corporation (StorageTek or STK; a.k.a. STC until about 1983), is a data storage technology company headquartered in Redwood Shores, San Francisco Bay Area, California. Now owned by Oracle Corporation, it has been renamed Oracle StorageTek with a focus on tape backup equipment and software to manage storage systems. New products include data retention systems, which they call information lifecycle management, or ILM. In 1969 four former IBM engineers: Jesse Aweida, Juan Rodriguez, Thomas S. Kavanagh, and Zoltan Herger, founded the Storage Technology Corporation. The headquarters was in Louisville, Boulder County, Colorado. In the 1970s, StorageTek