# Computer Science — NCERT Class 12 — CBSE (NCERT textbooks) — Shishya school context > Subject page: https://shishya.in/schooling/cbse/class-12/computer-science · class: https://shishya.in/schooling/cbse/class-12 (context: https://shishya.in/schooling/cbse/class-12/context.md) · data as of 2026-09-27 (IST). Free to cite; link back to the subject page. > Honesty: Shishya never reproduces, summarises or translates textbook text — read a chapter at its official link. Practice questions are Shishya's own, written by AI and answer-checked before they are shown; they are not NCERT exercises, not board questions and not previous-year questions. A chapter marked "not ready yet" has no Shishya notes or practice, and its Shishya page is not linked here. > Children: Class 1-7 school pages have no chat tutor, offer no sign-in and ask no child to create an account. On Class 8-12 pages a student may sign in to practise a chapter with Shishya's own answer-checked questions and to ask the AI tutor about it — for students 13 and above, with a one-time self-declared age band, and the tutor says it is an AI. The 5-question practice on every chapter page needs no account, and no result is saved to any account or profile from it: Shishya records only an anonymous usage event (which chapter was practised and the score), the same cookie-based analytics every page view sends. A signed-in student's own practice set is saved to that account. ## Computer Science - Book: Computer Science — https://ncert.nic.in/textbook.php?lecs1=0-13 - Chapters (13; 0 with Shishya notes, 0 with answer-checked practice of 5+ questions): - Chapter 1 — Exception Handling in Python — Shishya notes and practice not ready yet · official PDF: https://ncert.nic.in/textbook/pdf/lecs101.pdf - Chapter 2 — File Handling in Python — Shishya notes and practice not ready yet · official PDF: https://ncert.nic.in/textbook/pdf/lecs102.pdf - Chapter 3 — Stack — Shishya notes and practice not ready yet · official PDF: https://ncert.nic.in/textbook/pdf/lecs103.pdf - Chapter 4 — Queue — Shishya notes and practice not ready yet · official PDF: https://ncert.nic.in/textbook/pdf/lecs104.pdf - Chapter 5 — Sorting — Shishya notes and practice not ready yet · official PDF: https://ncert.nic.in/textbook/pdf/lecs105.pdf - Chapter 6 — Searching — Shishya notes and practice not ready yet · official PDF: https://ncert.nic.in/textbook/pdf/lecs106.pdf - Chapter 7 — Understanding Data — Shishya notes and practice not ready yet · official PDF: https://ncert.nic.in/textbook/pdf/lecs107.pdf - Chapter 8 — Database Concepts — Shishya notes and practice not ready yet · official PDF: https://ncert.nic.in/textbook/pdf/lecs108.pdf - Chapter 9 — Structured Query Language (SQL) — Shishya notes and practice not ready yet · official PDF: https://ncert.nic.in/textbook/pdf/lecs109.pdf - Chapter 10 — Computer Networks — Shishya notes and practice not ready yet · official PDF: https://ncert.nic.in/textbook/pdf/lecs110.pdf - Chapter 11 — Data Communication — Shishya notes and practice not ready yet · official PDF: https://ncert.nic.in/textbook/pdf/lecs111.pdf - Chapter 12 — Security Aspects — Shishya notes and practice not ready yet · official PDF: https://ncert.nic.in/textbook/pdf/lecs112.pdf - Chapter 13 — Project Based Learning — Shishya notes and practice not ready yet · official PDF: https://ncert.nic.in/textbook/pdf/lecs113.pdf - No Shishya notes or practice on this subject yet. ## Other subjects in this class - Mathematics: https://shishya.in/schooling/cbse/class-12/mathematics - Physics: https://shishya.in/schooling/cbse/class-12/physics - Accountancy: https://shishya.in/schooling/cbse/class-12/accountancy - Sanskrit: https://shishya.in/schooling/cbse/class-12/sanskrit - Hindi: https://shishya.in/schooling/cbse/class-12/hindi - English: https://shishya.in/schooling/cbse/class-12/english - Biology: https://shishya.in/schooling/cbse/class-12/biology - History: https://shishya.in/schooling/cbse/class-12/history - Geography: https://shishya.in/schooling/cbse/class-12/geography - Psychology: https://shishya.in/schooling/cbse/class-12/psychology - Sociology: https://shishya.in/schooling/cbse/class-12/sociology - Chemistry: https://shishya.in/schooling/cbse/class-12/chemistry - Political Science: https://shishya.in/schooling/cbse/class-12/political-science - Economics: https://shishya.in/schooling/cbse/class-12/economics - Business Studies: https://shishya.in/schooling/cbse/class-12/business-studies - Home Science: https://shishya.in/schooling/cbse/class-12/home-science - Urdu: https://shishya.in/schooling/cbse/class-12/urdu - Creative Writing & Translation: https://shishya.in/schooling/cbse/class-12/creative-writing-and-translation - Fine Art: https://shishya.in/schooling/cbse/class-12/fine-art - Informatics Practices: https://shishya.in/schooling/cbse/class-12/informatics-practices - Biotechnology: https://shishya.in/schooling/cbse/class-12/biotechnology - Sangeet: https://shishya.in/schooling/cbse/class-12/sangeet