Magnetic Drum Data Processing System Machine 650

• Paese
• USA (Stati Uniti d'America)

• Produttore / Marca
• IBM; Armonk, N.Y.

• Anno
• 1954–1962

• Categoria
• Elaborazione di segnali e strumenti di calcolo (Computer e moduli SP)

• Radiomuseum.org ID
• 297336

• Immagini
• Schemi

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• Numero di tubi
• 2000

• Valvole
• 5696 6463

• Numero di transistor

• Semiconduttori
• OA86C

• Principio generale
• Ricevitori speciali

• Gamme d'onda
• - senza

• Tensioni di funzionamento
• Fornita mediante altra unità o unità principale.

• Altoparlante
• - - Nessuna uscita audio.

• Materiali
• Mobile di metallo

• Radiomuseum.org
• Modello: Magnetic Drum Data Processing System Machine 650 - IBM; Armonk, N.Y.

• Forma
• Boatanchor (pesante apparecchio militare o commerciale, > 20 kg)

• Dimensioni (LxAxP)
• 62.125 x 30.25 x 50.75 inch / 1578 x 768 x 1289 mm

• Annotazioni

• The IBM 650 Magnetic Drum Data-Processing Machine is one of IBM's early computers, and the world’s first mass-produced computer. Almost 2,000 systems were produced, the last in 1962

  The IBM 650 needs a IBM 655 Power Unit. It houses 650 power supply, translating circuitry

  Some 650 milestones - variants:
  July 14, 1953:  IBM 650 Magnetic Drum Data Processing System Machine is announced.
  December 8, 1954: The first 650 delivered to a customer.
  1955: Magnetic tape input-output and the IBM 407 accounting machine are announced as additional equipment for the 650 system.
  September 14, 1956: 650 RAMAC (which combines the IBM 650 Magnetic Drum Data Processing Machine and a series of IBM 355 disk memory units) and the 305 RAMAC are announced.
  March 30, 1959: IBM 355 Model 2 Disk Storage Unit with double capacity disk storage files for the IBM 650 is announced.
  June 12, 1959: IBM 650 Model 4 console unit is introduced.
  June 18, 1959: Double capacity magnetic drum storage for the 650 Data Processing System is announced.
  1962: The final IBM 650 is manufactured.
  August 18, 1969: The IBM 650 and its components are withdrawn from marketing (support end!).

  General information
  about 2000 tubes and 5000 Germanium diodes
  clock frequency: 125 kHz
  Storage capacity of magnetic drum:
  10,000 or 20,000 digits (1,000 or 2,000 words)
  Input units:
  IBM 533 Read-Punch Unit
  IBM 407 Accounting Machine
  IBM 727 Magnetic Tape Unit
  Output units
  IBM 533 Read-Punch Unit
  IBM 407 Accounting Machine (with Summary Punch)
  IBM 727 Magnetic Tape Unit
  Input-Output storage areas
  Independent storage areas are provided for simultaneous input and output operations.

  Approximate calculating speeds (optimally programmed)
  78,000 additions or subtractions per minute
  5,000 multiplications per minute (multiplier = 5,555,555,555)
  3,700 divisions per minute (divisor = 5,555,555,555)
  138,000 logical decisions per minute

  Floating-Point arithmetic

  Approximate calculating speeds (optimally programmed)
  35,300 floating additions or subtractions per minute (4 shifts)
  6,000 floating multiplications per minute (multiplier = 55,555,555)
  3,800 floating divisions per minute (divisor = 55,555,555)

  When a program error occurred, the computer could automatically jump back in the program and run through the program again, which meant a considerable time saving compared to manual re-entry for checking.

  It also had a magnetic drum memory, hence the official name IBM 650 Magnetic Drum Data Processing Machine.

• Peso netto
• 905 kg / 1993 lb 6.3 oz (1993.392 lb)

• Bibliografia
• IBM History

• Autore
• Modello inviato da Heribert Jung. Utilizzare "Proponi modifica" per inviare ulteriori dati.

• Altri modelli

• In questo link sono elencati 20 modelli, di cui 20 con immagini e 14 con schemi.
  Elenco delle radio e altri apparecchi della IBM; Armonk, N.Y.