artridge) A magnetic tape technology introduced in the early 1980s that was used for backup. It was the only popular magnetic tape format for personal computers. The "quarter inch" name came from the original tape width; however, subsequent Travan drives used wider .315" tape.
Travan and SLR
Personal computer magnetic tape backup has long been superseded by flash drives and the Internet. However, the two QIC formats that survived the longest were 3.5" Travan minicartridges and the 5.25" SLR data cartridges. Most drives supported cartridges one generation back. See Travan
and magnetic tape
3.5" MINICARTRIDGES (Native Capacity)
DC-2000 Wide Travan QIC-EX
Format .25" .315" .315" .25-.315"
QIC-80 125MB 200MB 400MB 500MB
QIC-3010 340MB 420MB 800MB 1.1GB
QIC-3020 680MB 850MB 1.6GB 2.2GB
QIC-3040 840MB 1GB 2.5GB
QIC-3050 1GB 1.3GB 3.1GB
QIC-3080 1.6GB 2GB 5GB
QIC-3095 2GB 4GB 5GB
QIC-3210 2.3GB 5.1GB
QIC-3230 8GB 10GB 20GB
5.25" DATA CARTRIDGES (Native Capacities)
Scalable Linear Recording (SLR)
The supply and takeup hubs were moved by a belt (red) pressed against the tape. When the cartridge was inserted, the capstan was rotated by the drive motor.