CHSE Odisha Elective Computer Science study guide
CHSE Odisha Elective Computer Science · Work through your exam, one topic at a time.
CHSE Odisha's +2 Computer Science (Elective) is a higher secondary subject examined by the Council of Higher Secondary Education, Odisha, at the end of the second year. Candidates typically take it with Physics, Chemistry and Mathematics in the Science stream, and the grade feeds into the +2 certificate used for university admission and state-level recruitment and entrance processes. The CHSE Odisha Elective Computer Science study guide has 8 sections and about 2,285 words.
01Computer Fundamentals and System Organisation
This domain tests whether you can describe a computer as a set of functional units and explain how data and instructions move between them: the block diagram, CPU internals, memory hierarchy, buses and I/O devices. A computer has five functional units: input, memory, arithmetic logic unit (ALU), control unit (CU) and output.
301 words, about 2 min02Number Systems
This domain tests conversion between binary, octal, decimal and hexadecimal, binary arithmetic, and signed-number representation with 1's and 2's complement. Decimal to binary: repeated division by 2, reading remainders upward.
300 words, about 2 min03Boolean Algebra and Logic Gates
This domain tests the algebra of 0 and 1, truth tables, gate behaviour, canonical forms and simplification by identities and Karnaugh maps. A + 0 = A, A · 1 = A, A + 1 = 1, A · 0 = 0 A + A = A, A · A = A, A + A' = 1, A · A' = 0 Absorption: A + AB = A, A(A + B) = A De Morgan: (A + B)' = A' · B' and (A · B)' = A' + B' NAND and NOR are universal gates: either one alone can build AND, OR and NOT.
338 words, about 2 min04Programming in C
The largest practical domain: program structure, data types and operators, control structures, functions, arrays, strings, pointers, structures and file handling. Execution starts at main() .
264 words, about 1 min05Data Structures
This domain tests how data is stored and what each operation costs: stacks, queues, linked lists, searching and sorting. push and pop at the top; overflow when full, underflow when empty.
295 words, about 1 min06Database Management Systems and SQL
This domain tests the relational model, keys, normalization, and writing and reading SQL statements. A super key uniquely identifies a tuple; a candidate key is a minimal super key; the primary key is the chosen candidate key and cannot be NULL.
270 words, about 1 min07Computer Networks and the Internet
This domain tests topologies, the OSI and TCP/IP models, transmission media, addressing and common protocols. OSI has seven layers: Physical, Data Link, Network, Transport, Session, Presentation, Application.
247 words, about 1 min08Web Technology and Multimedia (HTML and Web Page Design)
This domain tests HTML document structure, common tags and attributes, tables, forms, links, and the basic properties of multimedia formats. <html wraps <head (metadata, <title ) and <body (visible content).
270 words, about 1 min