IB computer science HL September 7 2016 Lesson Notes

What are we going to learn today? We will take an exam that covers: Outline the architecture of the central processing unit (CPU) and the functions of the arithmetic logic unit (ALU) and the control unit (CU) and the registers within the CPU. Describe primary memory. Explain the use of cache memory. Explain the machine instruction cycle. Identify the need for persistent storage. Describe the main functions of an operating system. Outline the use of a range of application software. Identify common features of applications. Define the terms: bit, byte, binary, denary/decimal, hexadecimal. Outline the way in which data is represented in the computer. Define the Boolean operators: AND, OR, NOT, NAND, NOR and XOR. Construct truth tables using the above operators. Construct a logic diagram using AND, OR, NOT, NAND, NOR and XOR gates.	Homework None. Please relax
How am I being assessed today? This test will be a summative grade
Standards we are covering today Describe the main functions of an operating system. Click here for all our standards	As a computer scientist, you have: Confidence in dealing with complexity Persistence in working with difficult problems Tolerance for ambiguity The ability to deal with open-ended problems The ability to communicate and work with others to achieve a common goal or solution
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Give a brief account.

Give a detailed account or picture of a situation, event, pattern or process.

Give a detailed account including reasons or causes.

Provide an answer from a number of possibilities. Recognize and state briefly a distinguishing fact or feature.

Give the precise meaning of a word, phrase, concept or physical quantity.

Develop information in a diagrammatic or logical form.