These models will feature just a single spindle, the hard disk drive, as consensus is that consumers have little need for discs these days due to the increased use of Internet-based streaming video and audio services.
Apple took the initiative to adopt single-spindle design for its 15-inch third-generation MacBok Pro launched in 2012. Then, other notebook vendors followed suit by launching some 15- and above single-spindle notebook models, but single-spindle design did not become popular because consumers of 15-inch Windows notebooks were accustomed to using optical discs, the sources indicated.Compared with dual-spindle models, the single-spindle laptops are about 3mm thinner.