Weight tends to be difficult to compare because people state it differently. Here's
mine, from my last tour (46 days NJ to Newfoundland) in different forms:
Base Gear: 34 lbs. (gear excluding the clothes I wear & supplies)
ALL Gear: 39 lbs. (base weight & clothes I wear including helmet, no supplies)
Supplies: 8 lbs (1.5 days food & fuel, 2 liters of water)
Total Weight: 80 lbs. (all gear, supplies, & bicycle)
I don't carry a notebook computer, but do carry an iPhone 4 and external Li battery. The iPhone, battery, charging cables are about one pound.
BTW: I do consider the iPhone a real computer.