Who invented first computer and whats that name?

*** Introduction to the Mark 1

The Small-Scale Experimental Machine, known as SSEM, or the "Baby", was designed and built at the University of Manchester, and made its first successful run of a program on June 21st 1948. It was the first machine that had all the components now classically regarded as characteristic of the basic computer. Most importantly it was the first computer that could store not only data but any (short!) user program in electronic memory and process it at electronic speed. (Also, the electronic memory was a true Random Access Memory (RAM), in contrast with the other computers being proposed which were based on a much less flexible storage mechanism).

Although the components of the Baby were small and simple, it so clearly demonstrated the potential of the Stored-Program Electronic Computer that it was immediately decided to design and build a more powerful and useable machine, the Manchester Mark 1. Also by October 1948 the Government had requested Ferranti Ltd. to build a commercial machine to this new design.

The Manchester Mark 1 not only expanded the size and power of the basic Baby components but added some important innovations, in particular a magnetic drum for auxiliary storage, the original ancestor of the disc.

tommy flowers in 1943 it was called colossus