model named HEC-2M, manufactured by British Tabulating Machine Company (BTM). As per the agreement with BTM, ISI had to take care of the installation work and maintenance of it, before it became operational in 1956. Though this HEC-2M machine and the URAL-1 machine, which was bought in 1959 from Russia, were operational until 1963, ISI began development of the first second-generation digital computer of India in collaboration with Jadavpur University (JU). This joint collaboration led by the head of the Computing Machines and Electronics Laboratory at ISI, Samarendra Kumar Mitra, produced the transistor-driven machine ISIJU-1, which became operational in 1964. The first annual convention of the Computer Society of India (CSI) was hosted by ISI in 1965. The Computer and Communication Sciences division of ISI produced many eminent scientists such as Samarendra Kumar Mitra (its original founder), Dwijesh Dutta Majumdar, Sankar Kumar Pal, Bidyut Baran Chaudhuri, Nikhil R. Pal, Bhabani P. Sinha, Bhargab B. Bhattacharya, Malay K. Kundu, Sushmita Mitra, Bhabatosh Chanda, C. A. Murthy, Sanghamitra Bandyopadhyay and many. ISI is regarded as one of the top most centres for research in computer science in India. The Knowledge-based Computer Systems project (KBCS), funded jointly by Department of Electronics and Information Technology (DoE), Government of India and UNDP since 1986, has a nodal centre at ISI Kolkata. This unit is responsible for research in the area of image processing, pattern recognition, computer vision and artificial intelligence. Social sciences R. L. Brahmachari, known for his work in many fields like agricultural sciences, zoology, botany, biometrics, did much of his work at ISI. The institute has done some pioneering work and research in anthropology and palaeontology. A trove of dinosaur fossils was discovered by a team led by ISI researchers in the early 1960s. The scattered fossils were recovered and the partial skeleton was reconstructed at ISI's Baranagar campus. It turned out to be a unique species and was named the Barapasaurus tagorei (Dinosauria: Sauropoda), after Rabindranath Tagore and was mounted in the Geology Museum at the Kolkata Campus of the institute. The Linguistic Research Unit (LRU) of ISI was involved in the study of speech pathology. Đorđe Kostić of this laboratory was a distinguished scientist. He invented a unique hearing aid, called SAFA (Selective Auditory Frequency Amplifier) that simulates frequency-range according to the need of the particular hearing impaired person. Alumni Many students and research scholars of ISI pursued a career in