#Atapi ihas120 6 ata password
Included in the ATA-3 revision was the very handy SMART (Self-Monitoring and Analysis Tool) tool, the onboard circuitry monitored the drives behaviour and was capable of alerting the BIOS and OS when a drive failure was probable.ĪTA-3 was the first ATA revision to include password security.ĪTAPI (Advanced Technology Attachment Packet Interface)ĪTAPI was developed for the purpose of connecting other storage devices such as CD-ROM drives and tape drives to the ATA interface.Īlthough ATAPI uses the same cabling as normal ATA hard drives, the data is sent in packets (hence the name), these packets are created and organised by what is known as an ATAPI driver, they are then transferred using standard PIO or DMA transfer modes.ĪTA-ATAPI-4 (AT Attachment interface with Packet Interface Extension)
The main advantage that ATA-2 brought with it was the introduction of LBA (Logical Block Addressing) addressing, this was a major improvement to the CHS addressing system used in ATA-1, the LBA system gave unique identifiers to blocks of data on the drive, each identifier is 28 bits long, which gives up to 137GB of possible storage.ĭata Transfer Rates: 11.1MBps and 16.7MBps. The ATA-1 standard (referred to as simply ATA) was the original ATA interface used in the old IBM AT computers, ATA-1 allowed for 2 hard drives to be connected in the (now familiar) Master and Slave configuration, it also specified DMA and PIO support.ĪTA-1 used what is known as CHS (Cylinder, Head, Sector) addressing, whereby a block of data would be identified by its cylinder, head and sector parameters, at the time, this (along with some BIOS issues) limited the size of the hard drives to 528MB.ĭMA (single word) modes 0, 1 & 2 - DMA (multiword) mode 0.ĭata Transfer Rates: 3.3MBps and 8.3MBps. ATA-1 (standard withdrawn in August 1999)
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