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Magnetic Drum Data Processing System Machine 650

Magnetic Drum Data Processing System Machine 650; IBM; Armonk, N.Y. (ID = 2208684) Computer & SPmodules
 
Magnetic Drum Data Processing System Machine 650; IBM; Armonk, N.Y. (ID = 2208685) Computer & SPmodules
 
Magnetic Drum Data Processing System Machine 650; IBM; Armonk, N.Y. (ID = 2208686) Computer & SPmodules
 
Magnetic Drum Data Processing System Machine 650; IBM; Armonk, N.Y. (ID = 2208688) Computer & SPmodules
 
Magnetic Drum Data Processing System Machine 650; IBM; Armonk, N.Y. (ID = 2208689) Computer & SPmodules
 
Magnetic Drum Data Processing System Machine 650; IBM; Armonk, N.Y. (ID = 2208690) Computer & SPmodules
 
Magnetic Drum Data Processing System Machine 650; IBM; Armonk, N.Y. (ID = 2208691) Computer & SPmodules
 
Magnetic Drum Data Processing System Machine 650; IBM; Armonk, N.Y. (ID = 2208692) Computer & SPmodules
 
Magnetic Drum Data Processing System Machine 650; IBM; Armonk, N.Y. (ID = 2208694) Computer & SPmodules
 
Magnetic Drum Data Processing System Machine 650; IBM; Armonk, N.Y. (ID = 2208695) Computer & SPmodules
Magnetic Drum Data Processing System Machine 650; IBM; Armonk, N.Y. (ID = 2208016) Computer & SPmodules Magnetic Drum Data Processing System Machine 650; IBM; Armonk, N.Y. (ID = 2208017) Computer & SPmodules
Magnetic Drum Data Processing System Machine 650; IBM; Armonk, N.Y. (ID = 2208632) Computer & SPmodules Magnetic Drum Data Processing System Machine 650; IBM; Armonk, N.Y. (ID = 2208680) Computer & SPmodules
Magnetic Drum Data Processing System Machine 650; IBM; Armonk, N.Y. (ID = 2208627) Computer & SPmodules Magnetic Drum Data Processing System Machine 650; IBM; Armonk, N.Y. (ID = 2208653) Computer & SPmodules
Magnetic Drum Data Processing System Machine 650; IBM; Armonk, N.Y. (ID = 2208618) Computer & SPmodules Magnetic Drum Data Processing System Machine 650; IBM; Armonk, N.Y. (ID = 2208681) Computer & SPmodules
Magnetic Drum Data Processing System Machine 650; IBM; Armonk, N.Y. (ID = 2208682) Computer & SPmodules Magnetic Drum Data Processing System Machine 650; IBM; Armonk, N.Y. (ID = 2208683) Computer & SPmodules
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Magnetic Drum Data Processing System Machine 650; IBM; Armonk, N.Y. (ID = 2208016) Computer & SPmodules
IBM; Armonk, N.Y.: Magnetic Drum Data Processing System Machine 650 [Computer & SPmodules] ID = 2208016 1400x1147
Select picture or schematic to display from thumbnails on the right and click for download.
For model Magnetic Drum Data Processing System Machine 650, IBM; Armonk, N.Y.:
IBM 650 computer at Texas A&M University, College Station, Texas, likely in 1950s. The IBM 533 Card Read Punch unit is on the right.
Wikipedia: Author: Cushing Memorial Library and Archives, Texas A&M
 
Country:  United States of America (USA)
Manufacturer / Brand:  IBM; Armonk, N.Y.
Year: 1954–1962 Category: Signal Processing and Computing
Valves / Tubes 2000: 5696 6463
Semiconductors (the count is only for transistors) OA86C
Main principle Special principle (see notes)
Wave bands - without
Details
Power type and voltage Powered by external power supply or a main unit.
Loudspeaker - - No sound reproduction output.
Power out
from Radiomuseum.org Model: Magnetic Drum Data Processing System Machine 650 - IBM; Armonk, N.Y.
Material Metal case
Shape Boatanchor (heavy military or commercial set >20 kg).
Dimensions (WHD) 62.125 x 30.25 x 50.75 inch / 1578 x 768 x 1289 mm
Notes

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.

Net weight (2.2 lb = 1 kg) 905 kg / 1993 lb 6.3 oz (1993.392 lb)
Mentioned in IBM History

Model page created by Heribert Jung. See "Data change" for further contributors.



All listed radios etc. from IBM; Armonk, N.Y.
Here you find 15 models, 14 with images and 9 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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