BBISE Intermediate (HSSC) Computer Science (Class XI): syllabus, papers and marking

A 90-mark paper: 80 theory marks (17 MCQs, 13 three-mark and four six-mark questions) plus 10 practical-based marks.

BBISE HSSC-I model papers, published 11 October 2026 · Annual and Second Annual series · grades A++ to U (IBCC scale)

BBISE Inter Computer Science: where the marks go

BBISE’s HSSC-I Computer Science model paper (October 2026) is 80 theory marks plus a 10-mark practical-based assessment, 90 in all: 17 MCQs, any 13 of the short questions at 3 marks (39), and four six-mark questions, each with two alternatives of which one is answered (24), in a 3-hour paper.

The model questions cover data representation, choosing a chart, and why a Python function helps when a program repeats the same calculation. Marks go on exact definitions and correct code.

How we mark a real script

Paper structure and what we mark

PaperTimeMarksWeightQuestions
Class XI · Section 1 — Multiple Choice (Class XI)3 h (whole paper)1718.9%17 MCQs, 1 mark each: write the question number and the correct option on the answer script
Class XI · Section 2 — Short Answers (Class XI)—3943.3%Any 13 questions, 3 marks each
Class XI · Section 3 — Detailed Answers (Class XI)—2426.7%Four questions of 6 marks, each with two alternatives (answer one)
Class XI · Section 4 — Practical Based Assessment (Class XI)—1011.1%Any 2 of 3 PBA questions, 2 × 4 marks, plus 2 marks (8 + 2)

Syllabus outline

  1. Topics tested in the October 2026 model paper (the board has not posted a unit list):
  2. Data and units of storage
  3. Programming concepts and variables in Python
  4. Functions
  5. Charts and data presentation

How each paper is marked here

Where BBISE Inter Computer Science candidates lose marks

  1. Number-system conversions left half done — Binary, octal and hexadecimal conversions are marked on the working column; stopping at the remainders without reading them in order loses the answer.
  2. Truth table or logic diagram with one row wrong — A single wrong row or an unlabelled gate costs the whole question’s accuracy mark.
  3. Code that is correct in idea but not in syntax — Missing semicolons, wrong operators or an unclosed block in a program or HTML question are credited only partially.
  4. Definitions with no example — Short questions on networks, systems and software expect a definition and one concrete example.

Sample papers, mark schemes and marked reports for BBISE Inter Computer Science

See a real handwritten script marked by eight examiners at admitportfolio.com/examiners.

Questions teachers ask

Why is there only Class XI?
BBISE’s October 2026 model papers are published for HSSC-I (Class XI) only; a Class XII layout has not been verified.
What is the 8 + 2 practical mark?
Section 4 is a practical-based assessment: two of three questions (8 marks) plus 2 marks, so the paper is 90 marks with 80 theory.
Is this official BBISE marking?
No. Balochistan Board of Intermediate and Secondary Education, Quetta marks the real exam. This is examiner-style marking of mocks and homework for BBISE Inter Computer Science. Only you see the marking, and you decide what reaches the student.
Do you reproduce past-paper questions?
No. Every Class XI paper here is original and written to the bbise hssc-i model papers, published 11 october 2026, in the same structure as the real papers shown above.
Which papers are marked?
None yet are marked question by question; Class XI · Section 1 are scored instantly. Practical exams sat at the centre are not marked here.
How is the next paper chosen?
From the marks a student lost: the concepts behind them are ranked by marks dropped, and the new paper weights those topics. It is the same syllabus and structure, with new questions.
When are the exams?
Annual and Second Annual series. Grades A++ to U (IBCC scale).

Other BBISE Intermediate (HSSC) courses

Start marking Computer Science scripts · See a real marked script