1.2.1-3 Memory 0.0 / 5 ? ICTMemoryGCSEOCR Created by: 16cmorlandCreated on: 29-02-20 17:01 What is meant by the term primary storage? It is directly connected to the CPU and it is fast enough for programs to be run directly from it. 1 of 20 What does RAM stand for? Random Access Memory 2 of 20 What does ROM stand for? Read Only Memory 3 of 20 What is stored in RAM? Programs and data that are currently in use by the CPU 4 of 20 What does volatile mean? Contents will be lost when the power turns off 5 of 20 Is RAM volatile or non-volatile? Volatile 6 of 20 Is ROM volatile or non-volatile? Non-volatile 7 of 20 Describe how data is actually stored in ROM and RAM Stored as binary numbers with a pattern of switches in memory representing the binary numbers 8 of 20 Explain why programs do not run directly from secondary storage It is too slow for programs to run directly by the CPU 9 of 20 Explain why an embedded computer must store its program in ROM So the contents are not lost when the power is turned off and so the program cannot be altered 10 of 20 What is stored in RAM when a computer system is in use? The OS (and any files it is using), any programs that are loaded by the user and any data loaded by the user 11 of 20 Explain the purpose of RAM in a computer system Store data and programs that the CPU is using while programs are running 12 of 20 What is firmware? Software to control hardware 13 of 20 How could increasing RAM increase what the OS can store? It can store more programs, bigger programs, more files and bigger files 14 of 20 Explain the purpose of ROM in a computer system To store the programs and data needed to run a computer when there is no secondary storage so data is not lost when the power is turned off 15 of 20 Why would an embedded computer need RAM? To store data that needs to be changed 16 of 20 What does BIOS stand for? Basic Input/Output System 17 of 20 What are the functions of the BIOS program? Allow the CPU to access hardware, check hardware, allow the user to view and edit basic settings, and load OS into RAM 18 of 20 Advantage of storing a program in ROM It is non-volatile so contents are not lost when the power turns off 19 of 20 Disadvantage of storing a program in ROM The program cannot be updated and any data stored on the chip cannot be changed 20 of 20
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