The Amazing Evolution Of Apple's Mac - Business Insider
The evolution of information technologies in the 90s …
The drive to smaller form factors is made possible by continuing advances in electronics, disk media, read/write heads, and other disk drive technologies - all of which provide the ability to store ever more data on a given disk surface area. Historically, technology advances have resulted in the doubling of areal density - and thus the megabyte capacity of a disk - about every 18 months.
Amazing facts and figures about the evolution of hard disk drives
Microsoft ex-CEO Bill Gates predicted that as PC users evolve into "knowledge navigators," the demand for mass storage speed and capacity will continue to outpace technology developments. Gates speaks with authority as the mastermind behind dozens of PC applications and the leading PC operating environment, Microsoft Windows, all of which require increasing amounts of storage at higher levels of performance. As just one example, a complete installation of Microsoft Word, with its built-in spell checker, thesaurus, and grammar checker, now occupies 24 MB of hard drive space - more than two times the entire hard disk drive capacity of the original IBM PC/XT. Emerging applications such as multimedia, which requires storage of video images, demand even more hard drive capacity and performance. For example, a single frame of video can comprise over 4 MB of data. Given that "true motion" video operates at 30 frames per second, it's not hard to understand how a multimedia application can easily devour a gigabyte of storage. The remainder of this book will familiarize you with mass storage options, and the hard disk drive in particular, one of the most vital components of the modern computer. You will learn about computer systems, disk drives, and other forms of mass storage. Finally, this book looks into the future to highlight new technology developments that promise to keep hard disk drives revolutionizing our lives for years to come.