Java servlets and CGI
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This document provides an introduction and comparison of Java servlets and CGI (Common Gateway Interface) for creating dynamic web applications. Servlets use Java to build applications that reside on the web server and can generate dynamic web pages. CGI allows using programs on the server to process data and generate dynamic content, but programs must be written in a native language like C++. Servlets offer advantages like portability, ability to share data between requests, and better performance due to using threads instead of processes to handle requests.
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Data structure - traveling sales person and mesh algorithmlavanya marichamy This document discusses the traveling salesperson problem and mesh algorithms. It introduces:
1) A dynamic programming algorithm for solving the traveling salesperson problem that uses a state space tree representation. The algorithm finds the optimal tour by exploring the tree.
2) How to represent the traveling salesperson problem on a mesh-connected computer, with processors arranged in a square grid. Basic operations on the mesh take unit time.
3) The mesh algorithm works by having each processor row or column perform local computations analogous to exploring the state space tree in a linear array fashion.
Fundamentals and image compression models
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Software requirements specification
Software requirements specificationlavanya marichamy This document outlines the typical sections and contents of a software requirements specification (SRS). It discusses 12 common sections of an SRS, including an overview, development environments, external interfaces, functional requirements, performance requirements, exception handling, implementation priorities, foreseeable changes, acceptance criteria, design guidance, a cross-reference index, and a glossary. Key sections describe functional requirements using relational or state-oriented notation, performance characteristics like response times, and exception handling categories. The SRS should have properties like being correct, complete, consistent, unambiguous, functional, and verifiable.
Data mining primitives
Data mining primitiveslavanya marichamy Data mining primitives include task-relevant data, the kind of knowledge to be mined, background knowledge such as concept hierarchies, interestingness measures, and methods for presenting discovered patterns. A data mining query specifies these primitives to guide the knowledge discovery process. Background knowledge like concept hierarchies allow mining patterns at different levels of abstraction. Interestingness measures estimate pattern simplicity, certainty, utility, and novelty to filter uninteresting results. Discovered patterns can be presented through various visualizations including rules, tables, charts, and decision trees.
Memory Management
Memory Managementlavanya marichamy This document discusses memory management techniques used in computer systems. It covers five key requirements of memory management: relocation, protection, sharing, logical organization, and physical organization. It then describes approaches to memory management like fixed partitioning, placement algorithms, relocation, virtual memory, paging, and the use of page tables to translate virtual addresses to physical addresses. The goal is to efficiently manage the limited main memory and allow multiple processes to efficiently share memory.
Query evaluation and optimization
Query evaluation and optimizationlavanya marichamy The document discusses query processing and optimization. It describes several key activities in query processing including translating queries to a format executable by the database, applying optimization techniques, and evaluating the queries. It then provides details on three specific operations: selection using linear searches and indices, sorting, and join operations. It explains different algorithms for implementing each operation and factors to consider when choosing algorithms such as indexing and data sizes.
Basic Computer Organisation And Design
Basic Computer Organisation And Designlavanya marichamy This document provides an overview of basic computer organization and design. It discusses memory reference instructions, input/output and interrupts, and the design of a basic computer. The computer consists of a memory unit, nine registers, flags, decoders, buses, and control logic. It describes the control functions for memory reading and writing, register selection, flag manipulation, and arithmetic operations using an adder and logic circuit. The document aims to provide a complete description of the basic components and design of a computer system.
Register Transfer Language,Bus and Memory Transfer
Register Transfer Language,Bus and Memory Transferlavanya marichamy This document discusses register transfer language (RTL) which provides a concise way to describe operations between registers in a computer using symbolic notation. It defines common registers like the memory address register (MAR) and program counter (PC). Information can be transferred between registers using arrows. Basic symbols are used to denote registers and parts of registers. Transfers can happen over a shared bus connecting all registers. Memory is represented as a device that is accessed using a memory address register to specify the location. RTL provides an organized way to describe the internal operations of a computer concisely and precisely.
Arithmetic micro operations
Arithmetic micro operationslavanya marichamy This document discusses various types of micro operations that can be performed at the digital component level in digital systems. It describes arithmetic micro operations like addition, subtraction, increment, decrement, and shift. It provides examples of how these operations are represented and implemented using registers and binary adders or subtractors. It also discusses logic micro operations and shift micro operations, providing examples of each type.
Recovery with concurrent transaction
Recovery with concurrent transactionlavanya marichamy This document discusses recovery with concurrent transactions. It describes how to modify the log-based recovery scheme to support multiple concurrent transactions using a single disk buffer and log. During recovery, transactions in the undo list must be rolled back before transactions in the redo list are re-executed to restore consistency. Checkpoints record the active transactions to minimize log scanning during recovery.
Pointer in c
Pointer in clavanya marichamy Pointer is a variable that stores the address of another variable. Pointers in C are used to allocate memory dynamically at runtime and can point to data of any type such as int, float, char, etc. Pointers are declared with a * before the variable name and are initialized using the address operator &. Pointers can be used to pass arguments to functions by reference and can also point to elements within structures.
Dynamic memory allocation in c
Dynamic memory allocation in clavanya marichamy This document discusses dynamic memory allocation in C. It explains that dynamic allocation allows memory to be allocated at runtime, unlike static allocation which requires defining memory sizes at compile time. The key functions covered are malloc() for allocating memory blocks, calloc() for arrays and structures, realloc() for resizing allocated blocks, and free() for releasing used memory to avoid memory leaks. Examples are provided to demonstrate how each function is used.
microcomputer architecture-Instruction formats
microcomputer architecture-Instruction formatslavanya marichamy The document summarizes the instruction formats used by the 8086 microprocessor. It discusses the different parts of an instruction, including the opcode, addressing mode byte, registers, and displacement fields. It explains that instructions can be 1 to 7 bytes long depending on the addressing mode. Several examples of ADD instructions are provided to illustrate how the different fields specify the operands and destination.
IEEE STANDARED 802.5 LAN
IEEE STANDARED 802.5 LANlavanya marichamy The document discusses IEEE 802.5, which defines token ring local area networks (LANs). It introduces IEEE, the standards body, and notes that IEEE 802.5 specifies token passing ring access and physical layer standards for LANs. It describes how token ring networks operate, with a token being passed around a ring of stations, allowing each to transmit information. Finally, it contrasts Ethernet and Wi-Fi LAN technologies and their widespread use in business and home networks.
Broadband isdn and atm
Broadband isdn and atmlavanya marichamy Broadband ISDN (B-ISDN) is an extension of ISDN that provides both narrowband and broadband capabilities over digital networks. It supports interactive and distributive services using Asynchronous Transfer Mode (ATM), which transmits data in small, fixed-size cells. ATM provides either permanent or switched virtual connections and uses small, constant cell sizes to transmit video, audio, and computer data over the same network.
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- 2. INTRODUCTION TO SERVLETS • Servlet Technology is used to create web applications. • Servlet technology uses Java language to create web applications. • Web applications are helper applications that resides at web server and build dynamic web pages. • A dynamic page could be anything like a page that randomly chooses picture to display or even a page that displays the current time.
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