JPL Jet Propulsion Laboratory Pasadena CA Calif California FORTRAN PASCAL MACRO ADA BASIC BLISS C access address ast backup batch bit block blocks buffer bug byte call calls character cluster code command commands computer computers computes control copy cpu create data dcl dec decnet default define device directory disk disks driver edt exit field file files format function host image information input ip jnet job key library line link local log logical loop mailbox main mem mode network node page pages parameter parse patch phone pid printer priority problem problems procedure process processes program programs prompt record remote request return rms rno routine routines run running screen software source spawn status string subprocess subroutine sun support symbol sys system systems table tape tcp terminal tpu type ultrix university unix unsigned user username users uses utility vax virtual vms vmsmail