Introduction to Information Systems

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The following are steps followed by a microprocessor or the CPU to execute a program or a set of instructions stored on the Random Access Memory (RAM).

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Surname 1Name:Instructor:Course:Date:Introduction to Information SystemsPAPER 1/3The following are steps followed by a microprocessor or the CPU to execute a program or aset of instructions stored on the Random Access Memory (RAM).i.First, since the program is in the RAM, the microprocessor uses the memory controller toload the data from the RAM memory. Loading of data is also referred to as fetching ofinstructions that the program contains.ii.The microprocessor then processes the data in after decoding the set of instructions from theprogram.iii.The microprocessor then performs all the operations according to the instructions of theprogram. For example, an addition program would involve performing all the ALU operations.iv.The microprocessor uses the memory access to load or store the results of the operations tothe register file.v.Finally, the microprocessor updates the PC and displays the results according to the programinstructions.Surname 2A WIMP interface derives its systems from Graphical user interface (GUI) since it usesgraphics. Wimp Interface has the following components;a)A Window/ Windows- it is a rectangular area on the screen where applications of thecomputer run. Windows is a self-contained program which is isolated from other programs.b)Icons/an Icon- a component of WIMP, which is a symbol or picture representing a hardwaredevice or a software application. Icons act as shortcuts to actions that ar
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