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Computer Architecture: Operations and Operands
Every computer must be able to perform arithmetic.
OPERATIONS AND OPERANDS
Every computer must be able to perform arithmetic. The MIPS assembly language notation add a, b, c instructs a computer to add the two variables b and c and to put their sum in a. This notation is rigid in that each MIPS arithmetic instruction performs only one operation and must always have exactly three variables. For example, suppose we want to place the sum of four variables b, c, d, and e into variable a.The following sequence of instructions adds the four variables:
add a, b, c # The sum of b and c is placed in a
add a, a, d # The sum of b, c, and d is now in a
add a, a, e # The sum of b, c, d, and e is now in a
Fig 1.5 MIPS Instructions
Thus, it takes three instructions to sum the four variables. The words to the right of the sharp symbol (#) on each line above are comments for the human reader, so the computer ignores them.
Fig. 1.6 MIPS Operands
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FAQs on Operations and Operands - Instructions, Computer Science and IT Engineering - Computer Science Engineering (CSE)
| 1. What are operations and operands in computer science? |  |
Ans. In computer science, operations refer to the actions or manipulations performed on data, while operands are the values or variables on which the operations are performed. Operations can include arithmetic operations (such as addition, subtraction, multiplication, and division), logical operations (such as AND, OR, and NOT), and relational operations (such as equal to, greater than, less than, etc.).
| 2. How do instructions relate to operations and operands in computer science? | |
Ans. Instructions in computer science provide the specific set of operations to be performed on the given operands. These instructions can be written in various programming languages and are executed by the computer's processor. The instructions define the sequence of operations and operands, guiding the computer on how to manipulate the data to achieve a desired result.
| 3. What is the role of computer science and IT engineering in understanding operations and operands? | |
Ans. Computer science and IT engineering play a crucial role in understanding operations and operands as they provide the theoretical foundations and practical knowledge required to design, implement, and analyze algorithms and data structures. This knowledge is essential for developing efficient and reliable software systems that can manipulate data using different operations and operands.
| 4. Can you provide some examples of operations and operands in computer science? | |
Ans. Sure! Examples of operations and operands in computer science include:
- Arithmetic operation: Addition (+) with operands 5 and 3, resulting in 8.
- Logical operation: AND (&&) with operands true and false, resulting in false.
- Relational operation: Greater than (>) with operands 10 and 5, resulting in true.
| 5. How are operations and operands used in computer science exams? | |
Ans. In computer science exams, questions related to operations and operands often assess the understanding of fundamental concepts, such as the order of operations, operator precedence, and the behavior of different operations with different data types. Students may be asked to analyze code snippets and predict the output or identify the correct sequence of operations. These questions test the ability to apply the knowledge of operations and operands in solving computational problems.
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