"The History of Computing in the History of Technology," Annals of the History of Computing: 10(1988), 113-125. • html • pdf
"Issues in the History of Computing" in Thomas J. Bergin and Rick G. Gibson (eds.), History of Programming Languages II (NY: ACM Press, 1996), 772-781.
"What Makes History?" ibid., pp. 831-832. • html • pdf