Goel, Anita creator text Noida Pearson India Education Services Pvt Ltd. 2012, 2018 2019 monographic xx, 500 p. : ill., Col., ; 23 cm. Includes appendices and index Computer Science Computer fundamentals Electronic data processing Electronic digital computer Computer practical Computer system Basic of computer User interface Operating systems FC 004 GOE 9788131733097 (pbk)