SOLUTION OF INFORMATION TECHNOLOGY AND STRATEGIC MANAGEMENT INFORMATION TECHNOLOGY
Ans-1: (i) SWITCH: It is hardware device used to direct messages across a network. Switches create temporary point links between two nodes on a network and send all data along that link. (ii) MODEM: It stands for Modulator/Demodulator and is an encoding as well as decoding device used in data transmission that converts a digital computer signal into an analog telephone signal(i.e. it modulates the signal) and converts an analog telephone signal into a digital computer signal(i.e. it demodulates the signal) in a data communication system. (iii) HTML: Web Pages are created with the help of HTML (Hyper Text Markup Languages). HTML allows to the creator of web page to specify how the text will be displayed and how this web page would be linked with other web pages. These links are normally known as Hyper Text Link. (iv) Site Blocking: This software help in blocking site that are deemed inappropriate by management. (v) Buffering: Buffering enables the processor to execute another instruction while input or output is taking place rather than being idle while transfer was completed. (vi) Data Transformation:The data transformation layer receives data from the data sources, cleans and standardizes it, and loads it into data repository. (vii) Source Program: A program is entered into the computer system and submitted to the appropriate compiler. This program is called Source Program. (viii) Open Source Software: Open source software is created by generous programmers and released into the public domain for public use. The company or individual that develops the software retains ownership of the program but the software can be used freely. (ix) Mirror Log: A mirror log is an optional file that has a file extension .mlg. It is a copy of a transaction log which provides additional protection against the loss of data in the event of the transaction log becoming unusable. (x) Chat Server: Some organizations choose to run a server that will allow multiple users to have real-time discussions, called chats on the internet. Most chat servers allow the creation of private chat rooms where participants can meet for private discussions. Ans-2: (a) A set of instructions, which is known as program, are combined together to perform specific task is known as software. There are basically three types of software: Systems Software, Applications Software and Generalpurpose Software. (i) Systems software: System software is computer software designed to operate the computer hardware and to provide and maintain a platform for running application software. Therefore system software may be defined as a set of one or more programs designed to control the operation of computer system. It is an essential part of the computer system. It comprises of those programs that control and support the computer system and its data processing applications. It includes the following: • Programming languages • Operating systems • Device Drivers • Utility Programs • Language translators (ii) Application Software: Application software is a subclass of computer software that employs the capabilities of a computer directly to a task that the user wishes to perform. The program usually solves a particular application or problem that is unique to that organization. Examples of such programs are Payroll, General accounting, Sales statistics and Inventory control, etc. (iii) General-purpose software: This software provides the framework for a great number of business, scientific, and personal applications. Spreadsheet, Databases, Computer-Aided Design (CAD) and Word Processing software, etc. fall into this category. Most general-purpose software is sold as a package. The software is accompanied by user-oriented documentation such as reference manuals, keyboards templates, and so on. (b) Component of an Expert System (i) User Interface: User Interface allow a user to provide, design or...
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