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Classroom presentation of the first part of chapter 5: System Software - Operating system. This bundle includes a PPT(with classroom activities) + a homework worksheet . Please remember to leave a review.

Cambridge A Level Computer Science,covering syllabus section 5.1 Operating System. Learning Objectives: • User-system interface. • Program-hardware interface. • Resource Management. > Process management. > Memory management. > Device management. > File management. > Security management. Please remember to leave a review.

Cambridge A Level - Computer Science. Chapter 3 - 3.1.1 - Overview, Primary storage and embedded systems. (Suitable for IGCSE) Candidates should be able to: •Show understanding of the need for input, output, primary memory and secondary memory (including removable) storage. •Explain the differences between Random Access Memory (RAM) and Read Only Memory (ROM). •Including their use in a range of devices and systems and the reasons for using one instead of the other depending on the device and it

Worksheet to accompany the Lesson for Chaper 5.1 - Operating Systems (Key management tasks). Answer key included.

Cambridge A Level Chapter 1 - Data Rrepresentation. Candidates should be able to: Show understanding of binary magnitudes and the difference between binary prefixes and decimal prefixes. Understand the difference between and use: •kibi and kilo •mebi and mega •gibi and giga •tebi and tera Show understanding of the basis of different number systems. •Use the binary, denary, hexadecimal number bases and Binary Coded Decimal (BCD) •One’s and two’s complement representation for binary numbers. Perf