1. ATing system> A simple item of dATa thAT identifies a resource. For example, a Unix file handle identifies an open file and associATed dATa such as whether it was opened for read or write and the current read/write position. On the Macintosh, a handle is a pointer to a pointer to some dynamically-allocATed memory. The extra level of indirection allows on-the-fly memory compaction or garbage collection without invalidATing applicATion program references to the allocATed memory. 2. An alias used intended to conceal a user' s true identity in an electronic message. The term is common on Citizen' s Band and other amATeur radio but, in thAT context usually means the user' s real name as FCC rules forbid concealing one' s identity. Use of grandiose handles is characteristic of crackers, weenies, spods, and other lower forms of network life true hackers travel on their own reputATions. Compare nick. [Jargon File] (2004-07-20)