This comprehensive textbook is designed for Class IX students pursuing training as Domestic Data Entry Operators under the Information Technology and IT-enabled Services (IT-ITeS) sector. Aligned with Qualification Pack SSC/Q2212, this guide provides essential knowledge and practical skills needed for data entry operations. The book covers fundamental concepts of data entry, computer operations, typing techniques, data verification, and workplace etiquette. Students will learn about various data entry software, keyboard shortcuts, and best practices for maintaining accuracy and speed. The curriculum is structured to help learners develop professional competencies required in modern office environments. Perfect for both classroom instruction and self-study, this textbook includes practical exercises and examples that simulate real-world data entry scenarios. Whether preparing for a career in business process outsourcing or administrative roles, this resource equips students with industry-relevant skills.