Notations for complexity

(A) Asymptotic Notations (n→∞): Asymptotic notations are used to express the running time of an algorithm in terms of function, whose domain is the set of natural numbers N={1,2,3,…..}. Such notations are convenient for describing the worst case running time function T(n). Asymptotic notation gives the rate of growth, i.e. Read more…

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Token Bus/IEEE 802.4

Introduction Token bus was standardized by IEEE standard 802.4. Definition Token bus is a LAN network protocol that implemens a Token Ring protocol over a virtual ring on a coaxial cable(ethernet). Features The token bus is a distributed processing system.  Here, each node must know the address of its neighbour in Read more…

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Reference Books & Websites

slno Name of Books Authors Publications 1. Unix Shell Programming Yashwant Kanitkar BPB 2. Linux Networking and Security Nicholas Wells Vikas Publishing, New Delhi 3. Unix – Concepts & Applications Sumitabha Das Tata Mcgraw Hill Publications 4. Unix for Programmers and Users Graham Glass & King Ables Pearson Education, India Read more…

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Http/Https

Introduction of HTTP/HTTPS HTTP/HTTPS is the client-server network protocol that has been in use by the World Wide Web since 1990. HTTPS stands for Hypertext Transfer Protocol Secure. HTTPS is a crucial component of modern web security, ensuring that data transmitted between clients and servers is encrypted and secure. Implementing Read more…

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E-mail

Click this link for details of E-mail Protocols History Before 1990, it was mostly used in academia. During the 1990s, it became known to the public at large and grew exponentially to the point where the number of e-mails sent per day is vastly more than the number of snail Read more…

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World Wide Web/WWW/W3/Web

History of WWW The Web/WWW began in 1989 at CERN(The European Organization for Nuclear Research; the largest particle physics laboratory in the world; The name CERN is derived from the acronym for the French “Conseil European pour la Recherche Nucléaire”; located in Geneva, Switzerland; Established on 29 September 1954, 23 Read more…

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Scheduling Algorithms & its Type

Introduction Scheduling/Process/CPU Scheduling is a fundamental function of an operating system. Strictly, all computer resources are scheduled before use/processing properly. Since CPU is one of the primary/superior computer resources, therefore its scheduling is must and central.  CPU scheduling is the basis of operating system which supports multiprogramming concepts. Definition In Read more…

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