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BARK



 
 
BARK (Binär Aritmetisk Relä-Kalkylator, Swedish for "Binary Arithmetic Relay Calculator") was an early electromechanical computer
Electromechanics

In engineering, electromechanics combines the sciences of electromagnetism of electrical engineering and mechanical engineering. Mechanical engineering in this context refers to the larger discipline which includes chemical engineering, physics, and othe related disciplines....
. BARK was built using standard phone relays, implementing a 32-bit
32-bit

The range of integer values that can be stored in 32 bits is 0 through 4,294,967,295 or -2,147,483,648 through 2,147,483,647 using two's complement encoding....
 binary machine and could perform addition in 150 ms and multiplication in 250 ms. It had a memory with 50 registers and 100 constants. It was later expanded to double the memory. Howard Aiken
Howard Aiken

Howard Hathaway Aiken was a pioneer in computing, being the primary engineer behind IBM's Harvard Mark I computer....
 stated in reference to BARK "This is the first computer I have seen outside Harvard that actually works."

BARK was developed by Matematikmaskinnämnden a few years before BESK
BESK

BESK was Sweden's first electronic computer, using vacuum tubes instead of relays. It was developed by Matematikmaskinn?mnden and during a short time it was the fastest computer in the world....
.






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BARK (Binär Aritmetisk Relä-Kalkylator, Swedish for "Binary Arithmetic Relay Calculator") was an early electromechanical computer
Electromechanics

In engineering, electromechanics combines the sciences of electromagnetism of electrical engineering and mechanical engineering. Mechanical engineering in this context refers to the larger discipline which includes chemical engineering, physics, and othe related disciplines....
. BARK was built using standard phone relays, implementing a 32-bit
32-bit

The range of integer values that can be stored in 32 bits is 0 through 4,294,967,295 or -2,147,483,648 through 2,147,483,647 using two's complement encoding....
 binary machine and could perform addition in 150 ms and multiplication in 250 ms. It had a memory with 50 registers and 100 constants. It was later expanded to double the memory. Howard Aiken
Howard Aiken

Howard Hathaway Aiken was a pioneer in computing, being the primary engineer behind IBM's Harvard Mark I computer....
 stated in reference to BARK "This is the first computer I have seen outside Harvard that actually works."

BARK was developed by Matematikmaskinnämnden a few years before BESK
BESK

BESK was Sweden's first electronic computer, using vacuum tubes instead of relays. It was developed by Matematikmaskinn?mnden and during a short time it was the fastest computer in the world....
. The machine was built with 8000 standard phone relays, 80 km of cable and with 175,000 soldering points. It was completed in February 1950 at a cost of 400.000 Swedish kronor
Swedish krona

The krona has been the currency of Sweden since 1873. It is locally abbreviated kr. The plural form is kronor and one krona is subdivided into 100 ?re ....
, became operational on April 28, and was taken offline on September 22 1954. The engineers on the team led by Conny Palm
Conny Palm

Conrad "Conny" Palm was a Swedish mathematician, known for several contributions to teletraffic engineering and queueing theory.Palm entered Kungliga Tekniska Hogskolan, being awarded his M.Sc....
 were Harry Freese, Gösta Neovius, Olle Karlqvist, Carl-Erik Fröberg, G. Kellberg, Björn Lind
Björn Lind

Bj?rn Lind is a Sweden Cross-country skiing who has competed since 2000. He won gold medals in both the Individual and Team sprint events at the 2006 Winter Olympics in Turin....
, Arne Lindberger, P. Petersson and M. Wallmark.

External links

  • , memorial site of one of the engineers behind BARK and BESK