S.M.A.R.T. stands for Self-Monitoring Analysis and Reporting Technology. S.M.A.R.T. technology was developed by a number of major hard disk drive manufacturers to increase the reliability of hard drives. It is a technology that enables the PC to predict the future failure of hard disk drives. S.M.A.R.T. technology has become an industry standard for hard drive manufacturers.
SMART
SCSI
Yes, SMART is a diagnostic and preventive program that is activated through the BIOS.
The first hard drives were only a couple of megabytes, while modern hard drives are 3TB and beyond. As technology progresses, hard drives will likely continue to increase in capacity. Therefore, not all hard drives are 2.5GB in size.
EIDE
Enhanced Integrated Drive Electronics (EIDE)
Random Array of Inexpensive Drives R A I D
Magnetic Platter based Hard disk drives are widely used but Solid State Drives using Flash Memories providing less seek time - Low Latency are recent advances in Hard disk Technology.
Smart
ATA-3 introduced S.M.A.R.T.
S.M.A.R.T. stands for Self-Monitoring, Analysis, and Reporting Technology. It is a monitoring system built into hard drives to detect failures and hard drive health. The practical use of S.M.A.R.T. is to predict possible hard drive failure before it happens. This allows the user to save data off the hard drive before it completely fails.
Solid State Drives are currently replacing hard drives in most desktop and laptop computers, and have already replaced them completely in tablets, smartphones, and portable media players. Solid state drives use much of the same technology found in USB flash drives and SD cards.