Electronics Engineering (ELEX) Board Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the Electronics Engineering Board Exam with interactive quizzes, flashcards, and detailed explanations. Enhance your understanding of essential topics and boost your confidence for the big day. Get started today!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Where is the operation code field found?

High-level programming languages
Machine language instruction
Assembler language
Data flow diagrams

The correct answer is: Machine language instruction

The operation code field is found in machine language instructions. This field is crucial because it specifies the operation that the computer's control unit must perform, such as addition, subtraction, logic operations, or data manipulation. Each machine instruction consists of an operation code (opcode) and one or more operand fields which detail the data to be manipulated or the addresses of the data. The clarity and precision of machine language are essential for direct interaction with the hardware. This is because machine language is the lowest-level programming language that the computer's processor can directly execute. In contrast, high-level programming languages, assembler language, and data flow diagrams serve different purposes in programming and designing systems and do not represent operations in a directly executable format by the hardware. High-level languages are more abstract and are further removed from the machine instructions, while assembler languages serve as a more human-readable form of machine language, still dependent on the underlying machine code. Data flow diagrams are visual representations of data processes and do not relate to machine instructions at all.