This website deals with SATA (Serial AT Attachment): what it is; where it came from and how it got its name; what it’s used for; how it has developed over the years since it began establishing itself; the present state of affairs; where it may go in the future; and what may replace it.

Subjects dealt with include:

  • Early mainframe computing
  • Development of parallel and serial interfaces
  • How “microcomputers” came to be called “PCs”
  • How the IBM AT set the standard for computing for many years
  • The role of Microsoft in forcing uniformity and compatibility on microcomputer manufacturers and software writers
  • Why SCSI did not replace SATA
  • SATA-IO as a governing body
  • Formal and informal plugfests as tests of interoperability
  • SATA revisions as data transmission speeds increased
  • The introduction of Native Command Queuing
  • The move from sequential access memory to random access memory and the reduction in size of storage devices from 1950s disk packs to today’s solid state drives
  • SATA and its competitors in the race to be the standard SSD interface
  • Latency: what it is, what causes it and why it, and not transmission speed, may be the defining factor in making SATA give way to something else

So the future is uncertain – but what can be said without question is that SATA has been the workhorse of data transmission for two decades and has made possible the evolution of computer systems to the point they have reached currently. What comes next is anyone’s guess – analysts’ forecasts are wrong more often than they are right and, while surprising developments are certainly in store, the reason they’ll be surprising is that no-one can say what they will be!