Virtual Memory 1 2 DMemory 1 2 Virtual

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Virtual Memory 1. 2 DMemory 1. 2 Virtual Memory Comp 1 (Exam) 1. 2

Virtual Memory 1. 2 DMemory 1. 2 Virtual Memory Comp 1 (Exam) 1. 2 Memory GCSE Computing 1 -9

Virtual Memory 1. 2 DMemory 1. 2 d Comp 1 (Exam) 1. 2 Memory

Virtual Memory 1. 2 DMemory 1. 2 d Comp 1 (Exam) 1. 2 Memory the need for virtual memory GCSE Computing 1 -9

1. 2 D Virtual Memory Learning Objectives i Remember the purpose of RAM ii

1. 2 D Virtual Memory Learning Objectives i Remember the purpose of RAM ii Understand why virtual memory is needed Understand how virtual memory works Identify the advantages & disadvantages of virtual memory iii iv Comp 1 (Exam) 1. 2 Memory GCSE Computing 1 -9

1. 2 D Virtual Memory Comp 1 (Exam) 1. 2 Memory GCSE Computing 1

1. 2 D Virtual Memory Comp 1 (Exam) 1. 2 Memory GCSE Computing 1 -9

1. 2 D Virtual Memory Learning Objectives i Remember the purpose of RAM ii

1. 2 D Virtual Memory Learning Objectives i Remember the purpose of RAM ii Understand why virtual memory is needed Understand how virtual memory works Identify the advantages & disadvantages of virtual memory iii iv Comp 1 (Exam) 1. 2 Memory GCSE Computing 1 -9

1. 2 D ROM Virtual Memory Storage Software Memory CPU 10001001 01000111 Comp 1

1. 2 D ROM Virtual Memory Storage Software Memory CPU 10001001 01000111 Comp 1 (Exam) 1. 2 Memory GCSE Computing 1 -9

1. 2 D Virtual Memory So the purpose of RAM is to hold the

1. 2 D Virtual Memory So the purpose of RAM is to hold the programs & data currently in use Comp 1 (Exam) 1. 2 Memory GCSE Computing 1 -9

1. 2 D Virtual Memory Billions of address locations holding billions of bytes (GB)

1. 2 D Virtual Memory Billions of address locations holding billions of bytes (GB) Comp 1 (Exam) 1. 2 Memory GCSE Computing 1 -9

1. 2 D Virtual Memory #1 #84 10001001 Memory 00101100 Random Access Memory #345

1. 2 D Virtual Memory #1 #84 10001001 Memory 00101100 Random Access Memory #345 10110101 #603 Comp 1 (Exam) 1. 2 Memory 00111001 GCSE Computing 1 -9

1. 2 D Virtual Memory Comp 1 (Exam) 1. 2 Memory GCSE Computing 1

1. 2 D Virtual Memory Comp 1 (Exam) 1. 2 Memory GCSE Computing 1 -9

1. 2 D Virtual Memory Learning Objectives i Remember the purpose of RAM ii

1. 2 D Virtual Memory Learning Objectives i Remember the purpose of RAM ii Understand why virtual memory is needed Understand how virtual memory works Identify the advantages & disadvantages of virtual memory iii iv Comp 1 (Exam) 1. 2 Memory GCSE Computing 1 -9

1. 2 D ROM Virtual Memory Storage Software RAM Memory-O-Meter Comp 1 (Exam) 1.

1. 2 D ROM Virtual Memory Storage Software RAM Memory-O-Meter Comp 1 (Exam) 1. 2 Memory GCSE Computing 1 -9 CPU

1. 2 D ROM Virtual Memory Storage Software RAM Memory-O-Meter Comp 1 (Exam) 1.

1. 2 D ROM Virtual Memory Storage Software RAM Memory-O-Meter Comp 1 (Exam) 1. 2 Memory GCSE Computing 1 -9 CPU

1. 2 D ROM Virtual Memory Storage Software RAM Memory-O-Meter Comp 1 (Exam) 1.

1. 2 D ROM Virtual Memory Storage Software RAM Memory-O-Meter Comp 1 (Exam) 1. 2 Memory GCSE Computing 1 -9 CPU

1. 2 D Virtual Memory Storage RAM When RAM is full, the hard drive

1. 2 D Virtual Memory Storage RAM When RAM is full, the hard drive is used as virtual memory Comp 1 (Exam) 1. 2 Memory GCSE Computing 1 -9

1. 2 D Virtual Memory Learning Objectives i Remember the purpose of RAM ii

1. 2 D Virtual Memory Learning Objectives i Remember the purpose of RAM ii Understand why virtual memory is needed Understand how virtual memory works iii Comp 1 (Exam) 1. 2 Memory GCSE Computing 1 -9

1. 2 D Virtual Memory Storage RAM The part of the hard drive that

1. 2 D Virtual Memory Storage RAM The part of the hard drive that acts as virtual memory is called a page file Comp 1 (Exam) 1. 2 Memory GCSE Computing 1 -9

1. 2 D Virtual Memory Storage RAM A machine using lots of virtual memory

1. 2 D Virtual Memory Storage RAM A machine using lots of virtual memory is said to be ‘thrashing the disk’ Comp 1 (Exam) 1. 2 Memory GCSE Computing 1 -9

1. 2 D Virtual Memory Learning Objectives i Remember the purpose of RAM ii

1. 2 D Virtual Memory Learning Objectives i Remember the purpose of RAM ii Understand why virtual memory is needed Understand how virtual memory works Identify the advantages & disadvantages of virtual memory iii iv Comp 1 (Exam) 1. 2 Memory GCSE Computing 1 -9

1. 2 D Virtual Memory When RAM is full, using virtual memory is better

1. 2 D Virtual Memory When RAM is full, using virtual memory is better than having programs crash or losing data. Using the hard drive gives slower data transfer so computer performance decreases ‘Thrashing the disk’ means computer gets tied-up swapping pages and eventually a program will stop running Comp 1 (Exam) 1. 2 Memory GCSE Computing 1 -9

1. 2 D Virtual Memory Learning Objectives i Remember the purpose of RAM ii

1. 2 D Virtual Memory Learning Objectives i Remember the purpose of RAM ii Understand why virtual memory is needed Understand how virtual memory works Identify the advantages & disadvantages of virtual memory iii iv Comp 1 (Exam) 1. 2 Memory GCSE Computing 1 -9

1. 2 D Virtual Memory Comp 1 (Exam) 1. 2 Memory GCSE Computing 1

1. 2 D Virtual Memory Comp 1 (Exam) 1. 2 Memory GCSE Computing 1 -9