Abstract: An online concierge system generates order batches for pickers and offers those order batches. The online concierge system generates a set of candidate order batches, which are subsets of a received set of orders. The online concierge system generates a set of order batch scores for each of a set of candidate pickers, and offers the candidate order batches to the candidate pickers for the candidate pickers to service based on the set of order batch scores. If a candidate picker accepts the offered order batch, the online concierge system identifies candidate order batches with overlapping orders with the order batch accepted by the candidate picker, and rescinds the offer for each of the candidate pickers to service the order batches.

Abstract: A single Ethernet network adapter having both 10 Mbps and 100 Mbps networking connections for dual network protocol modes is disclosed in one embodiment. The network adapter converts both 100 Mbps (100BASE-FX) and 10 Mbps (10BASE-FL) network protocols to a single common BASE-TX protocol. The network adapter can receive either of the two network protocol connections over a networking cable and has the ability to operate a printing device from either protocol. The network adapter senses whether 100 or 10 Mbps jacks are connected during operation and dynamically modifies conversion operations based thereon.

Abstract: A device for hanging an object on a wall comprises a vertical guide (22) and a horizontal rail (44) mounted on a body (30) which is adjustable up and down the guide. A further horizontal rail (46) may be slid horizontally along the rail (44). In use the guide (22) is fixed to the wall and the rail (46) is fixed horizontally to the back of a picture of other article to be hung. The position of the article is adjusted by sliding the body (30) in the guide (22) and/or the rail (46) along the rail (44).