▁Internet ▁service ▁to ▁its ▁members , ▁as ▁well ▁as ▁free ▁technical ▁assistance ▁with ▁computer ▁problems . ▁ ▁For ▁many ▁dec ades ▁a ▁big ▁exhibition ▁called ▁the ▁" H CC ▁d agen " ▁( H CC ▁Days ) ▁was ▁held ▁in ▁J aar be urs ▁in ▁U tre cht ▁with ▁thousands ▁of ▁at ten de es . ▁A ▁tradition ▁started ▁in ▁ 1 9 7 7 , ▁for ▁showing ▁off ▁the ▁member ' s ▁activities ▁and ▁giving ▁commercial ▁parties ▁an ▁opportunity ▁to ▁demonstrate ▁new ▁products ▁and ▁sell ▁equipment ▁and ▁software . ▁It ▁was ▁interrupted ▁in ▁ 2 0 1 0 ▁because ▁the ▁commercial ▁parties ▁lost ▁interest ▁as ▁internet ▁was ▁becoming ▁their ▁main ▁sales ▁platform . ▁In ▁ 2 0 1 1 ▁H CC ▁organ ised ▁a ▁similar ▁event ▁on ▁a ▁much ▁smaller ▁scale ▁than ▁before , ▁H CC ! dig ital . ▁ ▁See ▁also ▁Micro comput er ▁Club ▁Nederland ▁ ▁References ▁ ▁Category : Comput er ▁clubs ▁in ▁the ▁Netherlands <0x0A> </s> ▁The ▁Aur ora ▁Golden ey e ▁is ▁a ▁reconna issance ▁U AV ▁under ▁development ▁in ▁the ▁United ▁States ▁during ▁the ▁first ▁de cade ▁of ▁the ▁ 2 1 st ▁century . ▁It ▁is ▁a ▁du cted ▁fan ▁design ▁in ▁roughly ▁the ▁same ▁class ▁as ▁the ▁S ikor sky ▁Cy pher ▁II . ▁This ▁U AV ▁was ▁built ▁under ▁a ▁D AR PA ▁contract ▁and ▁is ▁apparently ▁focused ▁on ▁cover t ▁or ▁special ▁forces ▁operations . ▁ ▁The ▁Golden ey e ▁is ▁a ▁" tail - s itter " ▁or ▁" p