Computer fundamental MCQ Questions and answers- Technical Aptitude

A Graphical User Interface is a computer interface that allows users to interact with a device through graphical elements such as pictures and animations, as opposed to text-based commands.

When any data or instruction is entered into the memory of a computer, it is considered as input. Input refers to the process of providing data or instructions to a computer for processing. This can be done through various input devices such as keyboards, mice, scanners, etc. Input is an essential step in the computer's functioning as it allows the computer to receive and process information. Therefore, in the context of the given question, the data or instruction entered into the computer's memory is considered as input.

The correct answer is Option A: Execution Time.

Let's break it down:

1. What is "Processing a job"?
Imagine you ask your computer to open a game, calculate a sum, or save a document. The time your computer's main brain (the CPU) spends actually *doing* that task, step-by-step, following all the instructions, is called processing.

Why Option A is correct:
Execution Time is exactly what it sounds like! It's the actual time the computer (specifically the CPU) spends performing all the instructions and calculations for a particular task or "job". If your computer takes 5 seconds to load a game from when it starts working on it until it finishes, those 5 seconds are its execution time for that task.

Think of it like this: If you are building a toy car, the "execution time" is the time you spend actively putting the pieces together and completing the building process.

Why other options are incorrect:

Option B: Delay Time
This refers to time lost because of various reasons, like waiting for information to come from the internet (network delay), or a slight pause before the computer starts a task due to other activities. It's time spent *waiting* or being *delayed*, not *actively processing* the job itself.

Option C: Real Time
This describes a *type* of computer system or processing where tasks must be completed within very strict and guaranteed time limits. For example, systems in airplanes or medical equipment often operate in "real time" because delays can be critical. It's about *how* quickly and consistently a task must be done (its characteristics), not the *duration* of a single task's processing.

Option D: Waiting Time
This is the time a job has to wait in a queue because the computer's CPU is busy with other tasks, or it's waiting for another resource (like data from a hard drive) to become available. During "waiting time," the job is just sitting there, not being actively processed by the CPU yet.

A flip-flop or latch is a circuit that has two stable states and can be used to store state information as Memory devices.

The megabyte is a multiple of the unit byte for digital information. Its recommended unit symbol is MB. The unit prefix mega is a multiplier of 1000000 (106) in the International System of Units (SI).

Red hat Linux is not an application software package. Red Hat Enterprise Linux (RHEL) is a Linux-based operating system from Red Hat designed for businesses. RHEL can work on desktops, on servers, in hypervisors or in the cloud.

Linux is free and open source software it is not sold by Microsoft or any other company.

An error in computer program is known as Bug and process of fixing Bugs are known as Debug.

The correct answer is Option C: Application software.
Let's break down why:

* Operating System: This is the core software that manages all the hardware and other software on a computer (like Windows, macOS, or Linux). Microsoft Word needs an operating system to run, so it *isn't* the operating system itself.

* Processing Device: This is a physical component like the CPU (Central Processing Unit) that performs calculations and instructions. Microsoft Word is not a physical device.

* Application Software: This is software designed to perform a specific task for the user. Microsoft Word is designed for creating and editing documents, making it application software.

* Input Device: This is a hardware device that sends information to the computer (like a keyboard or mouse). Microsoft Word is not a physical device that you use to input data in that way.

* System Software: This is software that helps run the computer hardware and operating system, for example, device drivers. While Word relies on system software, it itself is designed for user tasks.

Therefore, because Microsoft Word is software designed for a specific user task (creating documents), it falls into the category of application software.

Supercomputers were introduced in the 1960s, and for several decades the fastest were made by Seymour Cray at Control Data Corporation (CDC)

A supercomputer is a computer with a high level of performance compared to a general-purpose computer. Performance of a supercomputer is measured in floating-point operations per second (FLOPS) instead of million instructions per second (MIPS)