Computer Data Conversion - SS2 ICT Past Questions and Answers - page 1
What is computer data conversion?
) The process of transforming data into human-readable formats
The process of translating data into binary code
The process of creating data using computer programs
The process of encrypting data for security purposes
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Which register holds the memory address of the next instruction to be fetched?
Accumulator Register
Memory Address Register (MAR)
Program Counter (PC)
Instruction Register (IR)
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Which register temporarily stores data during memory transfers?
Accumulator Register
Memory Buffer Register (MBR)
Program Counter (PC)
Instruction Register (IR)
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Which register is responsible for holding the current instruction being executed?
Memory Address Register (MAR)
Memory Buffer Register (MBR)
Program Counter (PC)
Instruction Register (IR)
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Which register stores intermediate arithmetic and logical results during calculations?
Accumulator Register
Memory Address Register (MAR)
Memory Buffer Register (MBR)
Index Register
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Which register is used for efficient array or table indexing?
Accumulator Register
Memory Address Register (MAR)
Index Register
Instruction Register (IR)
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The main purpose of the Memory Address Register (MAR) is to:
Store intermediate arithmetic results
Store the current instruction being executed
Hold the memory address of data to be read or written
Keep track of program sequencing
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Which type of memory holds both program instructions and active data for execution?
Cache memory
Secondary memory
Main memory (RAM)
Virtual memory
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What does the Program Counter (PC) store?
Intermediate results of calculations
The current instruction being executed
The memory address of data being transferred
The memory address of the next instruction to be fetched
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The purpose of the Memory Buffer Register (MBR) is to:
Hold the current instruction being executed
Temporarily store data during memory transfers
Store intermediate arithmetic results
Keep track of program sequencing
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