What is difference between ide hard disk and sata hard disk?

Answer 1

DMA:Direct Memory Access. A technique for transferring data from main memory to a device without passing it through the CPU. Computers that have DMA channels can transfer data to and from devices much more quickly than computers without a DMA channel. This is useful for making quick backups and for real-time applications. Some expansion boards, such as CD-ROM cards, are capable of accessing the computer

Answer 2

SATA (serial ATA) refers to the way the computer connects to a disk drive, and does not necessarily correlate to any particular storage technology.

A disk drive is a set of platters that spin at a relatively high speed, allowing information to be magnetically written on the platter surface for later retrieval. A disk drive is an example of "non-volatile" data storage, meaning that when you turn the computer off, the data will still be there next time you turn the computer on.

A solid state drive isn't really a disk, but it emulates a disk by storing information for later retrieval. A solid state drive is also "non-volatile", bu does not use spinning platters. There are several technologies that have been used to create solid state, non-volatile data storage.

Answer 3

There are numerous differences but an IDE or "PATA" hard disk uses a parallel method of transferring information, while a SATA drive uses a serial stream of information.