Apple unveiled long-awaited updates to its laptop computer range on Thursday, aiming to spark consumer interest in a product line often overshadowed by newer gadgets like the iPad and iPhone. The primary innovation is, as widely speculated, a new touch-sensitive panel on the MacBook Pro, Apple’s top-of-the-line laptop. The “Touch Bar” will offer functionality that’s familiar to many iPhone users. It shows word suggestions as you type and lets you scroll through libraries of emojis. When watching movies, the touch bar can offer playback controls. When editing photos, the touch bar changes to offer options to lighten or rotate.