数位 is the Taiwan-standard translation of English 'digital':
数位相机 (digital camera),
数位音乐 (digital music),
数位时代 (digital age). Mainland uses
数码 (shùmǎ) or
数字 (shùzì) for the same concept. In both regions
数位 also means 'numeric digit' — a position in a number, e.g. 'a four-digit number'.