BICS 1302 - CHAPTER 3 COMPUTER FUNCTION AND INTERCONNECTION

What is NOT a key concept of von Neumann architecture?

• Data and instructions stored in a single read-write memory

• Memory contents addressable by location

• Parallel execution of all instructions

• Sequential execution of instructions, unless modified

What is a primary disadvantage of hardwired programming?

• Requires high-level programming languages

• Needs rewiring for different configurations

• Uses too much RAM

• Operates only with graphical user interfaces

What differentiates software-based programming from hardware programming?

• Uses custom circuits for each task

• Requires physical modifications for new programs

• Uses coded instructions interpreted by the CPU

• Stores all instructions permanently in ROM

Which of the following is NOT a component of a contemporary computer?

• CPU

• Memory

• GPU

• I/O module

What is the function of the Memory Address Register (MAR)?

• Holds the next instruction to be executed

• Stores the result of arithmetic operations

• Specifies the address for the next read/write operation

• Holds the data fetched from memory

What is the purpose of the Memory Buffer Register (MBR)?

• Controls the CPU clock speed

• Stores data temporarily before transferring to memory or CPU

• Manages power distribution in a system

• Holds the instruction currently being executed

What are the two major steps in instruction processing?

• Read cycle and execute cycle

• Fetch cycle and execute cycle

• Decode cycle and run cycle

• Load cycle and store cycle

What is the role of the Program Counter (PC)?

• Stores the final execution results

• Holds the address of the next instruction to fetch

• Decodes fetched instructions

• Controls memory access speed

When does program execution halt?

• When a loop is encountered

• Only when the user presses a stop button

• If the machine is turned off, an error occurs, or a halt instruction is executed

• When the CPU exceeds 100% usage

What does the Operand Fetch (OF) step involve?

• Determines the next instruction's address

• Reads the instruction from memory

• Fetches the required operand from memory or I/O

• Stores the operand in cache