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百度 同济大学交通运输学院教授陈小鸿则认为，分时租赁发展一定要考虑城市交通服务体系的总体性，即要把分时租赁放在汽车电动化、智慧化的大框架下，甚至在智慧城市的大框架下考虑未来的发展趋势和前景，以此来研讨政策的引导和制定。

Intelligent Peripheral Interface (IPI) was a server-centric storage interface used in the 1980s and early 1990s with an ISO-9318 standard. designed for mainframe computers from IBM, Control Data Corporation, and Unisys. It replaced Storage Module Device (SMD) as the hard disk drive interface for very large hard disks.

The idea behind IPI is that the disk drives themselves are as simple as possible, containing only the lowest level control circuitry, while the IPI interface card encapsulates most of the disk control complexity. The IPI interface card, as a central point of control, is thus theoretically able to best coordinate accesses to the connected disks, as it "knows" more about the states of the connected disks than would, say, a SCSI interface.

IPI supports cable lengths up to 125 metres (410 ft). An IPI-2 bus can provide a data transfer rate in the vicinity of 6 MB/s.

In practice, the theoretical advantages of IPI over SCSI were often not realized, as they only materialized when several disks were connected to the interface, which could then easily become a bandwidth bottleneck.

IPI systems were often shipped by Sun Microsystems on original sun4 architecture servers, but the above limitation and reliability problems made them unpopular with customers, and the technology basically disappeared by the second half of the 1990s.

See also

• Enhanced Small Disk Interface (ESDI)
• SCSI