Bank Exam » Bank Exam Study Materials » Reasoning » A Simple Guide to Input and Output Reasoning

A Simple Guide to Input and Output Reasoning

Writing computer programs that manipulate numbers can be daunting, but understanding how to perform input and output reasoning can simplify the process immensely.

The simplest building blocks of any computer program are the inputs and outputs that can be passed to and from functions, modules, and methods. These are known as input and output data types or just input and output (I/O) types in programming jargon. 

Writing computer programs that manipulate numbers can be daunting, but understanding how to perform input and output reasoning can simplify the process immensely. Input and output reasoning allows you to analyze any number of operations to determine what inputs and outputs they will generate, then use this information to make predictions about your program or write it directly from the information you’ve determined. Here are some basic definitions for input and output reasoning you should know about before using them in your programs.

Understanding Input and Output Reasoning in computer

Some people know nothing about computers and are willing to learn. Here is a simple guide to input and output reasoning for such people. Reasoning can be divided into two main types: input and output. Input reasoning concerns information input from outside, such as using a mouse, keyboard, or touch screen; output reasoning concerns information output from inside, such as light or sound. It should be noted that these terms are not limited to computers but also include microwave ovens, television sets, and so on.

Input Type Number

One of Java’s primitive data types is type number. It is used to represent a numerical value in Java code. The data-type number has three subtypes: integer, float, and double. An integer uses a two’s complement binary representation with support for values ranging from -2,147,483,648 to 2,147,483,647; a float uses IEEE 754 binary representation with single precision in base 2E format; a double uses IEEE 754 binary representation with double precision in base 2E format.

Control Statements 

Control statements are used in computer science to give instructions to a program, like: go on until you hit a certain condition or keep looping until some condition is met. These statements are called control statements because they control what happens next in your program. Learning these will get you familiar with very important programming concepts that are used time and time again in other areas of computer science. Some of these skills have fancy names, but we’ll just refer to them by their code names: if-statements, for-loops, while-loops, do-while loops.

Input-Output Analysis

The software uses input to receive data from users, other programs, or files. The software then processes that data (input) before sending information to output (where it’s displayed on a monitor or printed out in hardcopy). At its most basic level, software input is either given directly by a user interacting with an application or requested from other programs through software objects known as functions. The program then takes that information and stores it in memory—either working with its custom structure for storing data or using data structures provided by another programming language. Once stored in memory, the software can access and manipulate that information through variable names or object-referenced variables. This manipulation (or processing) of input into output is often performed via algorithms designed to run calculations on those variables.


By learning how to use input and output reasoning in programming, you’ll be able to write better programs more quickly, with fewer bugs in the result. Understanding how these types work together to make the whole program run smoothly will help you write better programs yourself, so it’s time to dive into some examples of input and output reasoning in Python!


Frequently asked questions

Get answers to the most common queries related to the Bank Examination Preparation.

What is the input-output concept in computing?

Ans. Computers can be used to solve a huge variety of problems. Computers are very versatile and are probably one of...Read full

How do you solve sequential output tracing questions?

Ans.You can solve sequential output tracing questions by understanding Input-Output Analysis. When you are inputting...Read full

Why are inputs and outputs important in computing?

Ans. Computer programs take input, process it, and output results. Most apps are set up to be used in a simple loop:...Read full