  This paper is a tribute to the genius of the legendary Indian mathematician
Srinivasa Ramanujan (22 December 1887 - 26 April 1920) in the centenary year of
his death. The life story of Ramanujan is so well known that it needs no
elaboration not even a summarisation. In his short life period he made
substantial contributions to mathematical analysis, number theory, infinite
series, and continued fractions, including solutions to mathematical problems
then considered unsolvable. Ramanujan independently compiled nearly 3,900
results in the form of identities and equations. Many were completely novel;
his original and highly unconventional results, such as the Ramanujan prime,
the Ramanujan theta function, partition formulae and mock theta functions, have
opened entire new areas of work and inspired a vast amount of further research.
Nearly all his claims have now been proven correct.
  The focus of the paper is the increasing influence of the ideas propounded by
Ramanujan in the development of computing technology. We shall discuss the
application of certain infinite series discovered by Ramanujan in computing the
value of the mathematical constant $\pi$. We shall also consider certain
special graphs known as Ramanujan graphs and the reason for designating them as
such. We shall examine how certain researchers are attempting to create an
abstract machine which they call Ramanujan machine which is thought of as
simulating the hypothesised thought process of Ramnujan. We shall also have a
brief look at the applications of Ramanujan's discoveries in signal processing.
