Alan Freedman -- The Computer Language Company - Computer Desktop Encyclopedia
Computer Desktop Encyclopedia
Longest-Running Tech Reference on the Planet

A CDE Definition

You'll love The Computer Desktop Encyclopedia (CDE) for Tech Term of the Day (TTOD)

LOOK UP ANOTHER TERM


IDE host adapter

An earlier expansion card that plugged into a PC and contained the connection for up to four IDE hard disks. It generally also provided controllers for two floppy disks, two serial, one parallel and one game port. All these circuits were later built into the motherboard. See IDE.



IDE

(1) (Integrated Development Environment) A set of programming tools for writing applications (source code editor, compiler, debugger, etc.), all activated from a common user interface and menus. IDEs are standard procedure for program development. See Eclipse, compiler and debugger.

(2) (Integrated Drive Electronics/Intelligent Drive Electronics) A hardware interface for hard drives and CD/DVD drives. Introduced in 1986 with 20 megabytes of storage, IDE became the standard, with storage growing to hundreds of gigabytes. Officially an Advanced Technology Attachment (ATA) device (evolving from the AT bus), IDE's primary contribution was building the controller into the drive itself, requiring only a simple circuit on the motherboard. The ATA Packet Interface is the version for optical and removable drives (see ATAPI). Also known as "Parallel ATA" (PATA), IDE/PATA was superseded by Serial ATA (see SATA).

Master and Slave
Two IDE drives share one cable and are configured as master and slave. Out of the box, drives are set to master, and switching jumper pins makes them slaves.

Myriad Names Over the Years
The following mean the same thing: IDE, ATA, IDE/ATA, EIDE, EIDE/ATA, Fast/ATA and PATA. Using a 100 MB/sec example, drives went by "ATA-100," "Ultra ATA-100," "DMA-100" or "Ultra DMA-100." For detailed specifications, see PATA/SATA specifications. See Cable Select, SMART HDD, hard disk interfaces and SATA.




PATA Vs. SATA Cables
IDE/PATA cables took up a lot of room inside the case and impeded air flow. Motherboards had 40-pin sockets for optical drives and 80 pins for hard drives.






Fault Tolerant IDE
In the late 1990s, Arco was first to provide RAID 1 (mirroring) with "inexpensive" IDE drives rather than SCSI. This drive bay card plugged into the motherboard, and cables went to two drives (see RAID). (Image courtesy of Arco Computer Products, Inc., www.arcoide.com)






Personal Use Only

Before/After Your Search Term
BeforeAfter
IDaaSIDE interface
iDABIDE/PATA
IDAPIIDE RAID
IDBIDEA
IDCidempotency
IDDidempotent
IDEiDEN
IDE/ATAidenpotent
IDE controlleridentification
IDE fileidentifier

Terms By Topic
Click any of the following categories for a list of fundamental terms.
Computer Words You Gotta KnowSystem design
Job categoriesUnix/Linux
Interesting stuffPersonal computers
InternetIndustrial Automation/Process Control
Communications & networkingAssociations/Standards organizations
HistoryDesktop publishing
Audio/VideoGraphics
MainframesSecurity
ProgrammingHealthcare IT
System design