WORLD'S SMALLEST ELECTRIC BRAIN How an Electric Brain Works. Radio - Electronics Volume XXII Numbers 1 - 12 & Volume XXIII Number 1; October, 1950 to October, 1951. Complete in Thirteen Issues.

Berkeley, Edmund C. and Robert A. Jensen

Editorial: Radcraft Publications 1950, 1951, Philadelphia, 1950
Revista / Publicación Condición: Good Encuadernación de tapa blanda
Librería: The Avocado Pit (Staunton, VA, Estados Unidos de America)

Honoris Librarius
Miembro desde 1996

Cantidad disponible: 1

Comprar usado
Precio: EUR 293,87 Convertir moneda
Gastos de envío: EUR 4,08 A Estados Unidos de America Destinos, gastos y plazos de envío
Añadir al carrito


All thirteen issues have spine and edgewear with folds and/or creasing to the covers with soiling. Pages may have edge tears. Issue No. 5 has a masking taped spine as well as scattered writing in red pencil. Issues 7 & 8 have quite a bit of wear to the covers. ; 4to 11" - 13" tall; On the cover of this issue of RADIO-ELECTRONICS is a picture of the smallest existing, complete electric brain. This midget electric brain is named Simon, in honor of Simple Simon of Mother Goose fame. He can be called electric or mechanical for he uses relays; but not electronic, for he does not use a single electron tube. Nevertheless he illustrates in solid hardware the principles of all the giant artificial brains, electronic, electric, or mechanical. He is perhaps the only electric brain small enough to be understood completely by one man. Simon is about 24 inches long, 15 inches wide, and 6 inches high. He weighs (not counting his power supply) about 39 pounds. He runs on 24 volts D. C. , drawing at most about 5 amperes. And in number mentality, Simon at present compares with a child of two years, for he knows only four numbers, 0, 1, 2, and 3. Simon is slow. He performs each operation in about 2/3 second-unlike the electronic brain finished in 1949 called Binac, which adds at the rate of 3,500 additions per second. And yet Simon is a true mechanical brain, for he has the two essential properties that define a mechanical brain: he can transfer information automatically from any one of his 16 registers to any other, and he can perform endlessly long sequences of reasoning operations. Extra postage required for priority and international shipping. N° de ref. de la librería 55369

Hacer una pregunta a la librería

Detalles bibliográficos


Editorial: Radcraft Publications 1950, 1951, Philadelphia

Año de publicación: 1950

Encuadernación: Magazine

Condición del libro:Good

Descripción de la librería

Open shop selling general used and rare books. Also the home of BookTrakker software for booksellers. Walker-Kaye Corporation DBA The Avocado Pit. Bookshop location: 2621 W Beverley St, Staunton, VA 24401-2907, United States. Email: Phone: 540 886-0651. Contact: Andrew Gutterman.

Ver la página web de la librería

Condiciones de venta:

All orders must be prepaid, including libraries. All orders must be confirmed within 48 hours, or book will be relisted. We accept Visa & Mastercard, Amex, Discover Card, Paypal, checks and money orders. 10 day hold. All books returnable for any reason. Returns must be made within 10 days of receipt. Please email to confirm availability of books. All books subject to prior sale. All funds MUST be in U.S. currency.

Condiciones de envío:

Orders usually ship within 2 business days. Shipping costs are based on books weighing 2.2 LB, or 1 KG. If your book order is heavy or oversized, we may contact you to let you know extra shipping is required. We may also reduce shipping if the book is very light.

Todos los libros de esta librería

Métodos de pago
aceptados por la librería

Visa Mastercard American Express Carte Bleue

Cheque Giro Postal Dinero en Efectivo PayPal