For machine code instructions, the operand can be:

Source operand or destination operand or both source and destination operands or no operand

At least two operands (source operand and destination operand)

For the stack, which of the following statements is incorrect?

It is a memory area with FIFO (First In - First Out) structure

When adding data to the stack, the stack pointer decreases

The stack pointer always points to the top of the stack

It is a memory area with LIFO (Last In - First Out) structure

For machine code instructions, which of the following statements is incorrect?

Operand specifies the operation to be performed

Machine instruction consists of two parts: opcode (operation code) and operand

Opcode specifies the operation that the processor needs to perform

Operand specifies where the data to be operated on is located

For data registers (in CPU), which of the following statements is incorrect?

Only store data from the stack memory area

Store temporary data or intermediate results

Integer or floating-point registers

Considering the sequence of receiving data by CPU, the correct order is:

Address -> Memory -> Register file

Memory -> Register file -> Address

Address -> Register file -> Memory

Register file -> Address -> Memory

For the control unit (in CPU), which of the following statements is correct?

Decode instructions transferred from the instruction register to

Decode instructions transferred from the status register to

Do not accept signals from peripheral devices

For registers (in CPU), which of the following statements is incorrect?

Programmers can change all content of the registers

They are the first level of the memory system

They are located in the processor

For address registers (in CPU), which of the following statements is incorrect?

The instruction area does not need a register for management

Stack pointer register stores the address of the stack area

Program counter manages the instruction area

Data pointer register manages the data area

Considering the stages of executing a command of the processor, which sequence is correct?

Fetch command -> Decode command -> Fetch data -> Process data -> Write data

Fetch command -> Fetch data -> Decode command -> Process data -> Write data

Fetch data -> Process data -> Fetch command -> Decode command -> Write data

Decode command -> Fetch data -> Process data -> Write data -> Fetch command

For a machine code instruction with one operand, which statement is correct?

An operand specified in the instruction can be either the source operand or the destination operand, and the remaining operand is an implicit operand

The operand specified in the instruction is the destination operand

The operand specified in the instruction is the source operand

The operand specified in the instruction is an implicit operand

For the registers (in the CPU), which statement is correct?

There are two types of registers (programmable and non-programmable registers)

The register contains the computer software program

All registers are non-programmable

What is the function of the microprocessor in a computer?

Read data from memory, process it according to each instruction, and write the result to memory or peripheral devices

Control the operation of peripheral devices

Read data from peripheral devices and write it to memory

Read data from memory and write it to peripheral devices

Which of the following is not a characteristic of RISC computers:

Many ways to execute instructions through various addressing modes

Instructions executed in one clock cycle

Which of the following functions of the control unit (in CPU) is incorrect:

Receiving request signals from the system bus and processing them

Receiving instructions from memory and placing them in the instruction register

Emitting control signals to execute instructions

Which of the following statements about the status register (in CPU) is correct:

Does not contain arithmetic flags

Which of the following statements about the stack pointer register (SP) (in CPU) is incorrect:

The stack pointer always points to the bottom of the stack

The stack pointer contains the address of the top of the stack

When data is pushed onto the stack, the stack pointer decreases

When data is popped from the stack, the stack pointer increases

Which of the following statements about machine instructions with three operands is correct:

Two source operands and one destination operand

Two destination operands and one source operand

Which of the following statements about the Arithmetic Logic Unit (ALU) (in CPU) is correct:

Performing arithmetic and logical operations

Performing arithmetic operations

Not performing bit shift operations

The order of fetching instructions by the CPU is:

Program counter -> Memory -> Instruction register

Memory -> Program counter -> Instruction register

Memory -> Instruction register -> Program counter

Program counter -> Instruction register -> Memory

Which of the following statements about the overflow flag (OF) in the status register (in CPU) is correct:

Set to 1 when adding two integers of the same sign results in an opposite sign

Set to 1 when adding two integers of the same sign results in a negative result

Set to 1 when adding two integers of the same sign results in the same sign

This is the overflow flag for unsigned numbers

Which of the following is not a characteristic of RISC computers:

All designed with instruction pipeline

Which of the following statements about the Program Counter (PC) register (in CPU) is incorrect:

Contains the code of the instruction being executed

Also known as the Instruction Pointer (IP)

After fetching an instruction, the PC automatically increments to point to the next instruction

Holds the address of the next instruction to be fetched

Which of the following control signals from the system bus to the CPU is incorrect:

Not a read/write memory control signal

Which of the following statements about machine instructions is correct:

Machine instructions can have multiple operands

Machine instructions can have multiple operation codes

The operand in a machine instruction is unique

Machine instructions do not exist without operands

Which of the following statements about registers (in CPU) is incorrect:

Only one type of flag (Control flag)

The status register is also called the flag register

Two types of flags (Arithmetic flags and control flags)

The status register contains processing status information of the CPU

Which of the following functions of the control unit (in CPU) is incorrect:

Transporting instructions from registers to memory

Increasing the content of the PC to point to the next instruction

Emitting control signals to execute instructions

Controlling the fetching of the next instruction from memory into the instruction register

The meaning of the Sign flag (SF) in the status register (in CPU) is:

Set to 1 when the result of the operation is less than 0

Set to 1 when the result of the operation is not 0

Set to 1 when the result of the operation is greater than 0

Set to 1 when the result of the operation is 0

Which of the following types of registers (in CPU) based on function is incorrect:

Control and status registers of the CPU

Which of the following is not a characteristic of RISC computers:

Instructions executed in one clock cycle

Most instructions access operands in registers

Which of the following statements is incorrect:

The processor is composed of two parts: ALU and CU

The processor controls the operation of the computer

The processor operates according to a program stored in the computer's memory

The processor is composed of five parts: CU, ALU, RF, BIU, and internal Bus

Considering the control signals from the CPU to the system bus, which statement is correct?

Controls reading/writing to memory

Controls transferring data from ALU to register

Controls transferring data to ALU

Considering the data processing stages of the CPU, which sequence is correct?

Arithmetic Logic Unit (ALU) -> Perform operation -> Data register

Perform operation -> Data register -> Arithmetic Logic Unit (ALU)

Perform operation -> Arithmetic Logic Unit (ALU) -> Data register

Arithmetic Logic Unit (ALU) -> Data register -> Perform operation

For the Carry flag (CF) in the status register (in CPU), which statement is incorrect?

This is the overflow flag for signed numbers

Not set when there is no carry out of the most significant bit

Set when adding two numbers of the same sign results in an overflow

Not set when adding two numbers of the same sign results in a negative result

Regarding the Overflow flag - OF in the status register (in the CPU), which statement is incorrect?

Set to 1 when adding two integers with the same sign and the result has the same sign.

This is the overflow flag for signed numbers.

Set to 1 when adding two integers with the same sign and the result has the opposite sign.

Not set to 1 when adding two integers with the same sign and the result is negative.

Which statement about the ALU (in the CPU) is incorrect?

Performs square root calculation.

Performs comparison of two operands.

Performs addition and subtraction.

Which statement about address registers (in the CPU) is correct?

There are at least 3 types (Program Counter - PC; Data Pointer - DP; Stack Pointer - SP).

There are a total of 2 types (Program Counter - PC; Data Pointer - DP).

There is only one type (Program Counter - PC).

Considering the data writing (storage) stages of the CPU, what is the correct sequence?

Address -> Register set -> Memory

Address -> Memory -> Register set

Register set -> Memory -> Address

Register set -> Address -> Memory

Which statement about data registers (in the CPU) is correct?

Contains temporary data or intermediate results.

Contains addresses of memory locations carrying data.

Contains both data and addresses of operands in arithmetic instructions.

Contains data related to control information.

Which statement about registers (in the CPU) is correct?

There are non-programmable registers.

Contains the status of peripheral devices.

All registers can be programmed.

The instruction register contains the code of the instruction just processed.

Which statement about data pointer registers (DP Data Pointer) in the CPU is correct?

Contains the address of the memory location that the CPU wants to access.

Holds the address of the next instruction to be executed.

Contains data of the instruction being executed.

Contains the code of the instruction being executed.

Which statement about internal control signals in the CPU is incorrect?

Controls transferring data from CPU to register.

Controls transferring data from register to ALU.

Controls transferring data from ALU to register.

Controls ALU executing the instruction.

Which of the following is not a characteristic of RISC computers?

Instructions have fixed length.

CPU has a large set of registers.

Most instructions access operands in registers.

Microprocessor Quiz

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Computers

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For the control unit (in CPU), which of the following functions is correct?

Increment the content of the PC to point to the next instruction

Perform sign inversion

Store temporary information for the current operation of the CPU

Perform arithmetic and logical operations

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What components does the EU block in a microprocessor include?

Arithmetic Logic Unit (ALU) and Control Unit (CU)

Arithmetic Logic Unit (ALU), Control Unit (CU), and instruction queue

Arithmetic Logic Unit (ALU) and instruction queue

Arithmetic Logic Unit (ALU), Control Unit (CU), and register file (RF)

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Considering the control signals from the system bus to the CPU, which of the following statements is correct?

Interrupt acknowledge signal

Interrupt request signal

Memory write control signal

Memory read control signal

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The processor receives instructions from:

Memory or peripheral devices

Peripheral devices

Central Processing Unit (CPU)

Memory

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For the Zero flag (ZF) in the status register (in CPU), its meaning is:

Set to 1 when the result of an operation is zero

Set to 1 when the result of an operation is greater than zero

Set to 1 when the result of an operation is less than zero

Set to 1 when the result of an operation has a carry

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Considering the internal control signals within the CPU, which of the following statements is correct?

Control data transfer from memory to peripheral devices

Control data transfer from ALU to memory

Control data transfer from register to ALU

Control data transfer from CPU to ALU

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For the Carry flag (CF) in the status register (in CPU), which of the following statements is correct?

Set to 1 if the operation has no carry out of the highest bit

Set to 1 if the operation has a carry out of the highest bit

This is an overflow flag for signed numbers

Not set to 1 when the operation has a carry out of the highest bit

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