Some information about computers from the early '50s is still classified — http://www.governmentattic.org/4docs/NSAgenSpecComputers_1986.pdf http://www.governme

Some information about computers from the early '50s is still classified — http://www.governmentattic.org/4docs/NSAgenSpecComputers_1986.pdf http://www.governmentattic.org/4docs/NSAgenSpecComputers_198... . That plus http://www.governmentattic.org/3docs/NSA-HGPEDC_1964.pdf http://www.governmentattic.org/3docs/NSA-HGPEDC_1964.pdf are interesting reads for anyone interested in the early development of computing.