In a computer with an eide adapter, where should you connect an ATA CD-ROM drive? A. on the floppy bus B. on the primary IDE C. on the secondary IDE D. on the SCSI bus E. All of the above

The correct answer is: B. on the primary IDE.

An ATA CD-ROM drive is a type of optical drive that uses the ATA (AT Attachment) interface to connect to a computer. The ATA interface is a standard interface for connecting storage devices to computers, and it is used by many different types of storage devices, including hard drives, floppy drives, and CD-ROM drives.

The primary IDE bus is the first IDE bus on a computer. It is typically used to connect the primary hard drive, but it can also be used to connect other storage devices, such as a CD-ROM drive.

The secondary IDE bus is the second IDE bus on a computer. It is typically used to connect the secondary hard drive, but it can also be used to connect other storage devices, such as a CD-ROM drive.

The SCSI bus is a different type of bus that is used to connect storage devices to computers. SCSI is a more advanced bus than ATA, and it supports faster data transfer rates. However, SCSI is also more expensive than ATA.

Therefore, the correct answer is: B. on the primary IDE.