Final answer:
ARPANET was the network that went online in 1969 and used Honeywell computers at multiple universities. It was the precursor to the modern internet and allowed researchers to communicate with each other.
Step-by-step explanation:
The network that went online in 1969 and used Honeywell computers at multiple universities was ARPANET. ARPANET, which stands for Advanced Research Projects Agency Network, was a network of networks that connected government facilities and research universities. It was the precursor to the modern internet and allowed researchers to communicate with each other.