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1. The instruction is usually composed of an operation code and an operand; the address code part of the instruction may be an operand or the memory unit address of the operand.

2. According to the number of addresses involved in the address code, it can be seen that the zero address instruction type only has the operation code and no address code, and the c option is wrong. The operation code indicates the nature and function of the operation to be completed by the instruction, and the D option is wrong.

3. The correct statement about the instruction system is that different computer systems usually have their own instruction systems. According to the relevant questions of the query, it can be seen that the instruction system of all computers is the same, and the instruction system of the computer produced by the same manufacturer is the same. It is incorrect to say that all the set of machine instructions that computer software can execute is called an instruction system.

4. An instruction usually includes two aspects: operation code and address code. Among them, the operation code is used to characterize the operating characteristics and functions of an instruction; the address code gives the address of the data involved in the operation in the memory. The instruction system refers to the set of all instructions that a computer can execute.

5. Correct answer: B 3). The language that the computer can directly recognize is ( ). A. Advanced Programming Language B. Machine language C. Assembly language D.C++ language Correct answer: B 4). The following description of the computer instruction system is correct ( ).

6. Correct answer: C 5). The following description of the instruction system is correct ( ).

What is an instruction system? What parts does the command system consist of?

The instruction system refers to the set of all the instructions that a computer can execute. The command system determines the main performance and basic functions of a computer hardware. The instruction system generally includes the following types of instructions. ( 1) Data transmission class instructions. ( 2) Operational instructions include arithmetic operation instructions and logical operation instructions.

The instruction system is the language system of computer hardware, generally also known as machine language, which refers to the collection of all instructions possessed by the machine. It is the main interface between software and hardware, and also reflects the basic functions of the computer. From the perspective of system structure, it is the main attribute of the computer seen by system programmers.

1 Data processing instructions: including arithmetic operation instructions, logical operation instructions, shift instructions, comparison instructions, etc. 2 Data transmission instructions: including transmission instructions between registers, between registers and main memory, etc. 3 Program control instructions: including conditional transfer instructions, unconditional transfer instructions, rotor program instructions, etc.

Instruction system refers to the set of all instructions that a computer can execute. The command system determines the main performance and basic functions of a computer hardware. The instruction system generally includes the following types of instructions. ( 1) Data transmission class instructions. ( 2) Operational instructions include arithmetic operation instructions and logical operation instructions.

A command usually consists of two parts: operation code + address code. Operation code: indicates the type or nature of the operation to be completed by the instruction, such as taking numbers, adding or outputting data, etc.Address code: indicates the content of the operation object or the address of the storage unit where it is located.

The instruction system is the language system of computer hardware, also known as machine language, which refers to the collection of all the instructions possessed by the machine. It is the main interface of software and hardware, reflecting the basic functions of the computer. From the perspective of system structure, it is the main attribute of the computer seen by system programmers.

What is a computer instruction, what is a computer instruction system

A specific computer can only execute the instructions in a specific instruction system. Therefore, the instruction system is the machine language of the computer. The instruction system characterizes the basic functions and usage attributes of the computer, which is the core issue in computer system design.

Choose A. In general, we call the collection of computer instructions machine language. Because each CPU has its own unique instruction system. Therefore, the program (instruction code) written in the machine language of a certain type of computer is difficult to run on other types of computers. This problem is called instruction incompatibility.

Instruction refers to the command that the computer performs a certain operation. An instruction usually includes two aspects: operation code and address code. Among them, the operation code is used to characterize the operating characteristics and functions of an instruction; the address code gives the address of the data involved in the operation in the memory.

Its instruction content and format are different. The computer instruction system refers to the collection of all the instructions that the computer can execute. It describes all the control information and "logical judgment" capabilities in the computer.The instruction systems of different computers also contain different types and numbers of instructions.

The controller commands the machine to work. People use commands to express their intentions and hand them over to the controller for execution. The whole of all different instructions that a computer can execute is called the computer's instruction system. Each computer has its own specific instruction system, and its instruction content and format are different.

What does the command system mean?

1. CPU command system is the language system of computer hardware, also known as machine language. The instruction system refers to the collection of all the instructions of the machine, which describes all the control information and "logical judgment" capabilities in the computer. It is the main interface of software and hardware, reflecting the basic functions of computers.

2. Instruction refers to the command of a computer to perform a certain operation. An instruction usually includes two aspects: operation code and address code. Among them, the operation code is used to characterize the operating characteristics and functions of an instruction; the address code gives the address of the data involved in the operation in the memory.

3. The reason why the instruction system is the fundamental attribute of a CPU is that the command system determines what kind of programs a CPU can run. All programs compiled in high-level languages need to be translated (compiled or interpreted) into machine language before they can be run. These machine languages contain instructions one by one.