The term 'box office' originated in Elizabethan era, when affluent people would sit in private 'boxes' to watch theater. Tickets for boxes were sold at an 'office', called box office. In contemporary times, 'box office collection' means earnings generated by ticket sales after a film's release.
Answer: Higher resolutions mean that there are more pixels per inch (PPI), resulting in more pixel information and creating a high-quality, crisp image.
