Since I can't see the picture of the bike I'm assuming it's a Bianchi Giro and not a Gios. Can I also assume that the frame is made of Easton Ultralite aluminum with Shimano 105? Or is an older 80's era that had a Columbus SL or SLX steel frame with Campy Victory or Triumph (I can't remember which) or if SLX it should have either the first generation of Campy C Record or Campy Athena components? I think there was a cheaper version of the same model too that had just standard Columbus steel frame (which was just renamed 4130 steel) and lower end Campy Nuovo Alloro? stuff that didn't operate all that well, but the frame was nice riding as was most 4130 frames; obviously this lower price model wouldn't be as collectible but the others would be accept for the aluminum one which isn't worth much used.
If the bike is a Gios again the vintage steel bikes and even the modern interpretation of the steel bike are fantastic bikes, but the Gios aluminum one not so much. But I won't go into a long detail of those because I think it's the Bianchi you have since the Gios are more difficult to find.
So if you can give us more of a detailed description like if it's a Bianchi or a Gios, what brand and model name appears on all the components, and what does the frame sticker say about the frame construction along with any letters, all of that would be a major help.