That is not to say that North Korean officials are not aware of the Internet.

As far back as 2000, at the conclusion of a visit to Pyongyang, Madeleine K. Albright, then secretary of state, bid Mr. Kim to “pick up the telephone any time,” to which the North Korean leader replied, “Please give me your e-mail address.” That signaled to everyone that at least he, if not the average North Korean, was cybersavvy. (It is unclear if Ms. Albright obliged.)

Image A Department of Defense satellite image of the Korean Peninsula showing wide illuminated areas in South Korea and the relative darkness of the North. Credit... Jason Reed/Reuters

These days, the designated North Korean domain suffix, “.kp” remains dormant, but several “official” North Korean sites can be found delivering sweet nothings about the country and its leader to the global conversation (an example: www.kcckp.net/en/) — although these are typically hosted on servers in China or Japan.

Mr. Kim, embracing the concept of “distance learning,” has established the Kim Il-sung Open University Web site, www.ournation-school.com — aimed at educating the world on North Korea’s philosophy of “juche” or self-reliance. And the official North Korean news agency, at www.kcna.co.jp, provides tea leaves that are required reading for anyone following the great Quixote in the current nuclear crisis.

But to the extent that students and researchers at universities and a few other lucky souls have access to computers, these are linked only to each other — that is, to a nationwide, closely-monitored Intranet — according to the OpenNet Initiative, a human rights project linking researchers from the University of Toronto, Harvard Law School and Cambridge and Oxford Universities in Britain.

A handful of elites have access to the wider Web — via a pipeline through China — but this is almost certainly filtered, monitored and logged.

Some small “information technology stores” — crude cybercafes — have also cropped up. But these, too, connect only to the country’s closed network. According to The Daily NK, a pro-democracy news site based in South Korea, computer classes at one such store cost more than six months wages for the average North Korean (snipurl.com/DailyNK). The store, located in Chungjin, North Korea, has its own generator to keep the computers running if the power is cut, The Daily NK site said.

“It’s one thing for authoritarian regimes like China to try to blend the economic catalyst of access to the Internet with controls designed to sand off the rough edges, forcing citizens to make a little extra effort to see or create sensitive content,” said Jonathan Zittrain, a professor of Internet governance and regulation at Oxford.