#Hard disk map full#

There are two types of DMA modes: Single-Word DMA and Multi-Word DMA. The IDE interface running in PIO mode has a data transfer rate ranging from 3.3MB/s (PIO mode 0) to 16.6MB/s (PIO mode 4).

The biggest drawback of PIO mode is that it consumes a lot of CPU resources. There are three transmission modes for IDE: PIO (Programmed I/O), DMA (Driect Memory Access), and Ultra DMA (UDMA). With the time passes, more types of hard disk interfaces are developed, such as ATA, Ultra ATA, DMA, Ultra DMA and other interfaces are all IDE hard disk interfaces. This type of interface has been eliminated with the development of technology. IDE represents a type of hard disk interfaces, but in actual applications, people are also used to call it the first IDE-type hard disk ATA-1. Many hard disks used to have IDE interfaces, but now almost all hard disk interfaces are standard with SATA. This approach reduces the number and length of cables for the hard disk interface, enhances the reliability of data transmission, and makes hard disk manufacturing easier.

#Hard disk map full#

The full name of IDE is ' Integrated Drive Electronics', and its original meaning refers to the hard disk drive that integrates the 'hard disk controller' and the 'disk body'. Ⅱ What is IDE? 2.1 Integrated Drive Electronics Definition Under the broad categories of IDE and SCSI, there has a variety of specific interface types that can be divided according to different technical specification and transmission speed. It has fast transmission speed and strong reliability.

Most notebook computers and desktop computers use it, and solid state hard drives also use it. While Fibre Channel is only used in high-end servers and is expensive. SCSI is mainly used in the server market. And some of it are used in website servers. IDE is mostly used in household products. 2.1 Integrated Drive Electronics Definitionįrom an overall point of view, hard disk interfaces are divided into five types: parallel ATA (PATA, also called IDE or EIDE), SATA, SCSI, Fibre Channel, and SAS.