Other Digital Machines — Finished or Under Development
The Aiken Mark II Relay Calculator
The Computation Laboratory of Harvard University finished during 1947 a second large relay calculator, called the Aiken Mark II Relay Calculator. This machine is alluded to briefly at the end of Chapter 10 and is described more fully in the following:
Campbell, Robert V. D., Mark II Calculator, Proceedings of a Symposium on Large-Scale Digital Calculating Machinery, Cambridge, Mass.: Harvard University Press, 1948, pp. 69-79.
Freeland, Stephen L., Inside the Biggest Man-Made Brain, Popular Science, May 1947, pp. 95-100.
Miller, Frederick G., Application of Printing Telegraph Equipment to Large-Scale Calculating Machinery, Proceedings of a Symposium on Large-Scale Digital Calculating Machinery, Cambridge, Mass.: Harvard University Press, 1948, pp. 213-222.
The Edsac
The Edsac is a machine under construction in England.
Wilkes, M. V., The Design of a Practical High-Speed Computing Machine: the EDSAC, Proceedings of the Royal Society, series A, vol. 195, 1948, pp. 274-279.
Wilkes, M. V., and W. Renwick, An Ultrasonic Memory Unit for the EDSAC, Electronic Engineering, vol. 20, no. 245, July 1948, pp. 208-213.
The Edvac
The Edvac is a machine under construction at the Moore School of Electrical Engineering, Philadelphia.
Koons, Florence, and Samuel Lubkin, Conversion of Numbers from Decimal to Binary Form in the EDVAC, Mathematical Tables and Other Aids to Computation, vol. 3, no. 26, Apr. 1949, pp. 427-431.
Anonymous, EDVAC Replaces ENIAC, The Pennsylvania Gazette, Philadelphia: University of Pennsylvania, vol. 45, no. 8, Apr. 1947, pp. 9-10.
The IBM Selective-Sequence Electronic Calculator
The IBM Selective-Sequence Electronic Calculator was finished and announced in January 1948, and is alluded to briefly at the end of Chapter 10. More information about this machine is in the following references:
Eckert, W. J., Electrons and Computation, The Scientific Monthly, vol. 67, no. 5, Nov. 1948, pp. 315-323.
International Business Machines Corporation, IBM Selective-Sequence Electronic Calculator, New York: International Business Machines Corporation (form no. 52-3927-0), 1948, 16 pp.
The Raytheon Computer
The Raytheon Computer is a machine under construction at the Raytheon Manufacturing Co., Waltham, Mass.
Bloch, R. M., R. V. D. Campbell, and M. Ellis, The Logical Design of the Raytheon Computer, Mathematical Tables and Other Aids to Computation, vol. 3, no. 24, Oct. 1948, pp. 286-295.
Bloch, R. M., R. V. D. Campbell, and M. Ellis, General Design Considerations for the Raytheon Computer, Mathematical Tables and Other Aids to Computation, vol. 3, no. 24, Oct. 1948, pp. 317-323.
A “System of Electric Remote-Control Accounting”
During the 1930’s a system using connected punch-card machinery was experimented with in a department store in Pittsburgh. The purpose of the system was automatic accounting and analysis of sales. This system is described in:
Woodruff, L. F., A System of Electric Remote-Control Accounting, Transactions of the American Institute of Electrical Engineers, vol. 57, Feb. 1938, pp. 78-87.
The Univac
The Univac is a machine under construction at the Eckert-Mauchly Computer Corporation, Philadelphia. A similar but smaller digital computer called the Binac is also being developed.
Eckert-Mauchly Computer Corporation, The Univac System, Philadelphia: Eckert-Mauchly Computer Corp., 1948, 8 pp.
Electronic Control Co. (now Eckert-Mauchly Computer Corp.), A Tentative Instruction Code for a Statistical Edvac, Philadelphia: Electronic Control Co. (now Eckert-Mauchly Computer Corp.), May 7, 1947, 19 pp.
Snyder, Frances E., and Hubert M. Livingston, Coding of a Laplace Boundary Value Problem for the UNIVAC, Mathematical Tables and Other Aids to Computation, vol. 3, no. 25, Jan. 1949, pp. 341-350.
The Zuse Computer
The Zuse Computer is a small digital computer constructed in Germany.
Lyndon, Roger C., The Zuse Computer, Mathematical Tables and Other Aids to Computation, vol. 2, no. 20, Oct. 1947, pp. 355-359.