[1] Change Direction Indicator (IBM SNA)

[2] Connected Line Identification (I.251 C/E)

[3] Control Data Institute (->"IEEE Standard Dictionary")

[4] Collector Diffusion Isolation (->"IEEE Standard Dictionary")

[5] Crash Disk Immediate (aus "The REAL Canonical List of Forgotten Assembly Language Commands" :-)

[6] Compact Disc Interactive - vergl. CD-I

[7] College Des Ingenieurs, Paris (France, http://www.cdi.fr/)

[8] Course Deviation Indicator (->"NASA Acronym List").