Can you think of 2 purposes of the

Can you think of 2 purposes of the

Can you think of 2 purposes of the operating system? KEYWORDS LEARNING AIM Prepare for the mid term exam LEARNING OBJECTIVES 1. Identify three areas that you need to revise for the exam 2. Watch revision videos for the areas you have identified 3. Complete the tests after each video to test your understanding INSTRUCTIONS STORED AS

BINARY Link to LMC Operator code (op code) - the instruction (from given instruction set) Operand - the data to be operated on Both stored as bit patterns DATA ARRAY 50 100 10 0

0 A data structure that contains a group of elements These should be the same data type round(1) = 50, what is the value of round(3) UNTIL LOOP i=1 REPEAT round(i) = 0 i=i+1 UNTIL i = 5 This algorithm is

used to reset the value of a points score of each round of an interactive quiz. There are 5 rounds. Can you identify the logic error? UNTIL LOOP Write an algorithm that calculates the total value of the points gained in each round of the quiz using the array round. This can be written in pseudocode UNTIL LOOP

i=1 total = 0 REPEAT total = total + round(i) i=i+1 UNTIL i>5 or round(i) = 0 CAMBRIDGEGCSECOMPUTING.ORG [email protected] [email protected] Start Startby byselecting selectingCOURSE COURSEfrom

fromthe thetabs tabs We Wehave havecovered coveredthe thefollowing followingsections: sections: 1. 1. 2. 2. 3. 3.

Computing ComputingHardware Hardware Representation Representationof ofdata datain incomputer computersystems systems Programming Programming(apart (apartfrom fromthe thesection sectionon onmachine

machinecode) code) CAMBRIDGEGCSECOMPUTING.ORG Once Once you you have have identified identified the the relevant relevant section, section, find find the the video(s) video(s) you

you need need to to watch watch complete complete the the test test section section after after each each video video IfIf you you complete complete any

any on on the the worksheets worksheets print print them them off off and and bring bring them them to to me me for for marking

marking LEARNING OUTCOMES By the end of this lesson you will be able to .... ALL (C) MOST (B) SOME (A) Demonstrate an improvement in your understanding through the completion of tests after watching each video.

Go back over the end of term exam papers and identify where you went wrong using the videos and tests to assist you Write full answers for questions that you previously got part marks on using the videos and tests to assist you

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