Prompt
Generate a realistic image of a middle-aged American man with a gentle smile, wearing a suit and standing in front of a computer or a networking equipment, with a subtle background that hints at a 1970s or 1980s computer lab or office, representing David Walden, a renowned American computer scientist and engineer who made significant contributions to ARPANET and the Interface Message Processor, with a nod to his affiliation with Bolt Beranek and Newman and his education at the Massachusetts Institute of Technology.