Unconventional Computing

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Invention Journal of Research Technology in Engineering & Management (IJRTEM) ISSN: 2455-3689 www.ijrtem.com Volume 3 Issue 3 ǁ March –April 2019 ǁ PP 18-20

Unconventional Computing M. N. O. Sadiku1, Sheikh R. Reza2, S.M. Musa3 College of Engineering Prairie View A&M University Prairie View, TX 77446

ABSTRACT : Unconventional computing is computing using unusual methods or unusual devices. It generates novel concepts and implementations of computing devices based on non-silicon information processing in physical, chemical, and living systems. It is a relatively new field which covers a wide range of applications. It seeks to develop new algorithmic paradigms and physical computing substrates. This paper provides a brief introduction to unconventional computing.

KEYWORDS: alternative computing, unconventional computing I. INTRODUCTION No invention has evolved faster and has greater influence on our lives than the computer. The computer is capable of making calculations according to some predetermined algorithm. Von Neumann architecture is the main main baseline for modern computer. Unconventional computing is an interdisciplinary disclipine which aims to perform better than tha Von Neumann computer architecture and Turing machine. Also these are considered as the baseline models which have prevailed in computing since the 1940s [1]. A number of unconventional computational problems are described in which massive parallelism plays a fundamental role. These computations can be carried successfully in parallel, but not sequentially. Computaional models are based on neuon, evolution, cell, immune systems which represents the natural systems.

II. CONCEPT OF UNCONVENTIONAL COMPUTING Unconventional computing, also known as alternative computing, does its computation using unusual methods or unusual devices. It deals with computing implemented in physical, chemical, and biological systems. Unconventional computing methods include quantum computing, wetware computing, DNA computing, molecular computing, membrane computing, cellular computing, nano computing, neuromorphic computing, ternary computing, amorphous computing, reversible computing, chaos computing, and stochastic computing [2]. Such computing schemes are ―unconventional‖ in that they are not based on Turing machine or on the electronic computer model which has become known as the Von Neuman architecture. This implies, for example, that unconventional computing is a way of solving problems with quantum computers or DNA computing. classical Turing machines are inadequate for neural computation.

Figure 1 The classical computing [3]. The term of "unconventional computation" was coined by Cristian S. Calude and John Casti in 1998 at a conference in New Zealand. Unconventional computing takes computation into the real world, and harnessing the immense parallelism of physical systems.

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