Keyboard: A keyboard is an input device that allows a user to enter data into a computer. It has a set of keys that correspond to letters, numbers, symbols, and function commands. Standard keyboard: This is the most common type of keyboard found on most desktop computers. It has a set of […]

A computer system is composed of several essential components that work together to process information and perform various tasks. Here are the main components of a computer system with examples: Central Processing Unit (CPU): The CPU is the “brain” of the computer that performs most of the processing tasks. It interprets and executes instructions and […]

Generations of Computers First Generation (1940-1956): The first generation of computers used vacuum tubes for electronic components and magnetic drums for data storage. These computers were massive and expensive, and were primarily used for scientific calculations and military applications. Some examples of first-generation computers include the ENIAC and UNIVAC. Second Generation (1956-1963): The second generation […]

The development of computers can be traced back to the early 1800s with the invention of the first mechanical calculator, the Difference Engine, by Charles Babbage. The Difference Engine was designed to perform mathematical calculations using punched cards, but it was never completed due to funding issues. Computers have gone through four main generations since […]

A computer is an electronic device that can perform various tasks based on instructions given to it. It can process, store, retrieve, and communicate data and information. Computers have become an essential tool for individuals and organizations to accomplish a wide range of tasks. Computers consist of hardware and software components. The hardware components include […]

Information technology (IT) refers to the use of computers, software, and telecommunications equipment to process, store, retrieve, and transmit data and information. IT has revolutionized the way businesses, governments, and individuals operate by enabling faster, more accurate and efficient processing of information. In today’s world, it has become an essential component of many aspects of […]

Anglo-American Cataloguing Rules (AACR1): AACR1 was first published in 1967 and provides guidelines for cataloguing all types of library materials. It is widely used in North America and many other countries around the world. Resource Description and Access (RDA): RDA is a newer cataloguing code that was developed to replace AACR2. It was first published […]

Catalogue Purpose: The purpose of a library catalogue is to provide a comprehensive and organized list of all the resources available in a library. It serves as an index to the library’s holdings and helps users locate and access the resources they need. The main objective of a library catalogue is to provide a means […]

Normative principles of cataloging refer to a set of rules and standards that guide the creation of bibliographic records to ensure consistency, accuracy, and clarity in library catalogs. Some of the key normative principles of cataloging include: Standardization: Cataloging rules and standards should be consistent and widely accepted to facilitate resource sharing and interoperability among […]

  The modes of formation of subjects that have been recognised are. 1. Lamination According. to Ranganathan “when the basic layer is a basic subject and the other layers are isolate ideas, a compound subject is formed”.  Example Kind 1: Anatomy of the human body. Kind 2: Ayurvedic system of medicine, 2. Loose Assemblage Loose […]