History of computer part-6 - Ts Read

Friday, 2 June 2017

History of computer part-6

During The War 

During the Second World War, people built the first truly electronic computers known today as FIRST GENERATION COMPUTERS. Many of them had unusual names.

Konrad Zuse, THE GERMAN, designed the 21, 22, ZB and Z4 machines. These. unfortunately, were destroyed during the Allied bombing of Germany and, so, very little is known about them. However, these might be regarded as the FIRST DIGITAL CONIPUTERS USING BINARY ARITHMETIC AND PROGRAM CONTROL.
These machines were entirely mechanical used a keyboard for inputting, flashing lights for outputting and binary operations for processing. But none of them had the ability to do conditional branching. The Z4 could store 64 numbers and might be regarded as the first working computer in the world. Zuse himself set up a computer company after the War.

In 1969, Siemens bought the company.


The BRITISH, between 1943 and 1945, built the colossus. This computer, sometimes regarded as the FIRST ELECTRONIC COMPUTER, was designed to code-break ENIGMA. ENIGMA was a German Code Generator, captured by the Polish  Secret Service. The COLOSSUS had 2000 electronic valves, it could read 5000 characters per second and used a photoelectric reader to scan the rows to detect the absence or presence of holes. It was a computer meant solely for one purpose, i.e., for code-breaking alone. Subsequently, a computer used for just one purpose came to be called a DEDICATED COMPUTER.

The AMERICANS built their computers mainly to calculate firing tables for new weapons being sent to soldiers on the battle front, In 1944, the AUTOMATIC SEQUENCE CONTROLLED CALCULATOR (ASCC), also called the Mark 1, was built. "

This is regarded as the first ELECTRO -MECHANICAL computer. This was followed by the ABC and later, in 1946, by the ENIAC.