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http://www.nlm.nih.gov/LECTURES.dir/internet_course.dir/address_scheme.html (Einblicke ins Internet, 10/1995)

Host Addresses

Actual address is "Dotted Quad" example: wp.psi.com ==> 192.33.2.21
nslookup (UNIX) to get dotted quad from name

Hierarchical Network Addressing & Top-Level Domains

Internet's hierarchical domain naming scheme (diagram, 8-bit black and white, GIF87 format, 477 pixels high, 451 pixels wide, 7726 bytes)

R. P. C. Rodgers, Lister Hill Center, NLM (May 1994)