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We have successfully developed low loss thin films of high temperature superconductors (HTSC) on MgO as well as LaAIO3 substrates. This effort aims at the development of application oriented innovations, such as HTSC based passive microwave devices. As an initial attempt in developing microwave devices, we have designed, fabricated and tested HTSC microstrip resonators at X-band using YBCO thin films on LaAIO3 substrates. The film was grown using Pulsed Laser Ablation Technique. These resonators were tested and found to have quality factors up to 4500 in microstrip configuration and upto 10,000 in inverted microstrip configuration. These test results are presented in this paper. Superconducting Microwave Filters with high Q and very small size have been designed in various microstripline configurations. Design analysis and sensitivity analysis are carried out and simulated results are presented. The design is on LaAIO3 substrate of size 11 mm x 6mm x 0.5 mm, for C-band, five section filter. The hairpin co...

In the first part of this paper discussion centres on definition of computer networks, resource sharing possibilities and problem areas, network alternatives etc to give a general picture of computer networks, their capabilities and limitations etc.In the second part, relevance of introducing computer networks in India, need for taking up review of application areas for optimization of resources, present and likely computer networking demand alongwith available options and designed approach for growth of computer networks are discussed. Efforts are mainly directed to invite audience suggestion towards evolving an approach which could lead to optimum resource utilization as well as promote appropriate application of this exciting technology of seventies in India.