The Small Computer System Interface (SCSI, pronounced scuzzy) that every Mac from the Mac Plus on has supported (except for the iMac and the Blue & White Power Mac G3) is a mixed blessing. SCSI is a parallel interface, meaning that bits of data travel alongside each other rather than in tandem like they do […]
Tag Archives: SCSI
Not everyone uses modern Macs. I spent a day with a friend who still runs 1997 and 1999 Macs 20 years on.
SCSI isn’t the black art it sometimes seems to be, but the various terms different people use for the same thing makes it tough to sort out. I hope the following lessens the confusion.
Hard drive capacity is limited not only by how densely bits can be packed on a magnetic platter, but also by the number of sectors and tracks and drive surfaces in the drive itself and the number the computer’s operating system is designed to handle.
1999 – I have a Performa 6400 and am looking to upgrade my hard drive. I do not want to buy an external drive. Should I upgrade the IDE hard drive or add a SCSI drive to the bay above the CD-ROM?
The article on SCSI Component Order generated some excellent feedback and dialogue. The following comments were written by Keith Bumgarner of MacInformed, the author of the original article.
Per a few private requests, I found enough interest to post a thesis for all to see about the SCSI ID 5 issue.
Sometimes getting a SCSI chain working properly seems to be more hit and miss than science. We know the last device should be terminated, that the chain should not exceed a certain length, and that every device must have a unique ID. But even that isn’t enough to consistently build a busy SCSI chain and […]
Apple popularized SCSI (small computer system interface) by making it a standard feature on the third Macintosh, the Mac Plus, which was introduced in January 1986. Although Apple only embraced a subset of the emerging SCSI standard, the new bus allowed chaining up to seven peripherals to the computer. The 8-bit parallel interface was theoretically […]
1997 – Surprising to many, the first Macs didn’t have SCSI. The Apple design team created a compact, closed box with a disk drive, CPU, monitor, 128 KB of RAM, keyboard and mouse ports, a floppy drive port, and two serial ports. The serial ports were the secret – they could support a 230.4 Kbps […]
What was the smallest desktop Mac prior to the Mac mini? Apple’s LC series, which measures just under 3″ tall, although it has as big a footprint as four minis. The Mac LC, introduced in October 1990, was the first of the family.