This H. S. C class ICT app is according to the Bangladeshi XI-XII class syllabus. All six chapters of syllabus discussed here easily. Student of 2017 and 2018 even 2019 will be benefited from this app. This app is about the. 1. duction of ICT. 2. Communication Systems. 3. Number System. 4. Digital Device. 5. Program Design. 6. C-Programming. 7. Data Base Management System.