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Syllabus and Exam Weightage for Class

Class 12 syllabus of Computer Science is very vast and requires immense hard work to cover all the topics. Extramarks provides best quality learning materials for CBSE syllabus Class 12 Computer Science which is kept at par with the Computer Science syllabus Class 12. The new pattern for CBSE class 12 Computer science is very diverse. Below are some of the topics included in CBSE Class 12 Computer Science syllabus:
Chapter 1 C++ Revision Tour
Chapter 2 Object-Oriented Programming in C++
Chapter 3 Implementation of OOP Concepts in C++
Chapter 4 Constructor and Destructor
Chapter 5 Inheritance
Chapter 6 Data File Handling
Chapter 7 Pointers
Modern computers were designed purely as tools for computation. Simple manual instruments such as the abacus have helped people do calculations since ancient times. Many mechanical machines were designed early in the Industrial Revolution to simplify lengthy, tedious tasks, such as directing patterns for looms. In the early 20th century, more advanced digital computers were doing complex analogue calculations. In the late 1940s, the first semiconductor transistors were followed in the late 1950s by silicon-based MOSFET (MOS transistor) and monolithic integrated circuit (IC) chip technologies, leading to the microprocessor and microcomputer revolution in the 1970s. Since then, machine speed, efficiency, and flexibility have dramatically increased, with MOS transistor counts rising at a rapid pace (as expected by Moore's law), contributing to the Digital Revolution in the late 20th and early 21st centuries.

 The processing system performs arithmetic and logical operations, and in response to stored information a sequencing and control unit may change the order of the operations. Peripheral devices allow the retrieval of information from an external source and enable the saving and retrieval of the result of the operations. The first modern electronic computing machines had been built during World War II. Traditionally, a modern computer consists of at least one processing element, typically a central processing unit (CPU) in the manner of both a Metal-Oxide-Semiconductor (MOS) microprocessor along with some type of computer memory typically MOS semiconductor memory chip. Peripheral devices include input devices (keyboards, mice, joysticks, etc.), output devices (monitor screens, printers, etc.), and input/output devices performing both functions (e.g., a 2000 touchscreen)

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