Apple Tape Backup 40SC
Encyclopedia
The Apple Tape Backup 40SC was an external, SCSI
-interfaced, 1/4 in QIC, mini-cartridge tape drive
. It was first introduced by Apple, Inc. in 1987 and discontinued in 1994. The drive came bundled with backup software
.
SCSI
Small Computer System Interface is a set of standards for physically connecting and transferring data between computers and peripheral devices. The SCSI standards define commands, protocols, and electrical and optical interfaces. SCSI is most commonly used for hard disks and tape drives, but it...
-interfaced, 1/4 in QIC, mini-cartridge tape drive
Tape drive
A tape drive is a data storage device that reads and performs digital recording, writes data on a magnetic tape. Magnetic tape data storage is typically used for offline, archival data storage. Tape media generally has a favorable unit cost and long archival stability.A tape drive provides...
. It was first introduced by Apple, Inc. in 1987 and discontinued in 1994. The drive came bundled with backup software
Backup software
Backup software are computer programs used to perform backup; they create supplementary exact copies of files, databases or entire computers. These programs may later use the supplementary copies to restore the original contents in the event of data loss....
.
Technical Specifications
- Recording media: Industry-standard, DC 2000 1/4 in QIC mini-cartridge.
- Formatted capacity: 38.5 megabytes.
- Block sizeBlock (data storage)In computing , a block is a sequence of bytes or bits, having a nominal length . Data thus structured are said to be blocked. The process of putting data into blocks is called blocking. Blocking is used to facilitate the handling of the data-stream by the computer program receiving the data...
: 8,192 bytes. - Transfer rate: 1.25 megabytes per second.
- Interface: SCSI. Connected directly to Macintosh PlusMacintosh PlusThe Macintosh Plus computer was the third model in the Macintosh line, introduced on January 16, 1986, two years after the original Macintosh and a little more than a year after the Macintosh 512K, with a price tag of US$2599...
, Macintosh SEMacintosh SEThe Macintosh SE was a personal computer manufactured by Apple between March 1987 and October 1990. This computer marked a significant improvement on the Macintosh Plus design and was introduced by Apple at the same time as the Macintosh II....
or Macintosh IIMacintosh IIThe Apple Macintosh II was the first personal computer model of the Macintosh II series in the Apple Macintosh line and the first Macintosh to support a color display.- History :...
via a 50-pin SCSI port or to a compatible hard disk drive. - Volume backup time: Approximately 17–18 minutes per 20 megabytes.