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Basic Computer MCQs Online Test
[HDquiz quiz = “37”]
Basic Computer MCQs Online Test
Here are Questions with answer details:
What is input on a computer?
Input on a computer refers to the data or instructions that are provided to the computer to perform a task. It is the information that is fed into a computer or a computing system through input devices such as a keyboard, mouse, microphone, scanner, camera, or other peripherals. When a user enters data using an input device, such as typing a document on a keyboard or clicking a button with a mouse, the data is transmitted to the computer as input. The computer processes this input data, performs operations on it, and produces output, which can be displayed on a monitor, printed on paper, or saved to a file.
What are the CPU functions?
Some of the key functions of the CPU are:
- Fetching: The CPU fetches instructions from memory, which tells it what operation to perform.
- Decoding: The CPU decodes the instructions it has fetched and determines what operation needs to be performed.
- Execution: The CPU performs the operation specified by the instruction.
- Memory management: The CPU manages the computer’s memory, including reading and writing data to and from memory.
- Arithmetic and logic operations: The CPU performs mathematical calculations and logical operations, such as addition, subtraction, multiplication, division, AND, OR, NOT, etc.
- Interrupt handling: The CPU handles interrupts, which are signals from the computer’s hardware or software that require the CPU’s immediate attention.
- Control: The CPU controls the operation of the computer and coordinates the activities of other components, such as the memory, input/output devices, and other peripheral devices.
What is the name of the mouse?
The computer mouse is simply called a “mouse”. It is a pointing device used to control the movement of the cursor or pointer on the computer screen. The name “mouse” comes from the device’s shape and resemblance to a small rodent.
A standard computer mouse usually has two primary buttons and a scroll wheel button:
- Left button: This is typically the primary button and is used for selecting or clicking items on the screen.
- Right button: This is usually the secondary button and can be used for a variety of tasks, such as accessing context menus, copying and pasting, or opening links in a new tab.
- Scroll wheel button: This button is located between the left and right buttons and is used to scroll up and down through web pages, documents, or other content.
What is the main purpose of the device driver?
- The main purpose of a device driver is to act as a bridge between a computer’s operating system and the hardware connected to it. A device driver is a software program that enables the operating system to communicate with and control a specific hardware device, such as a printer, scanner, or network adapter.
- Device drivers provide a standardized interface that allows applications to access the hardware without having to know the specific details of how the hardware works. The driver provides the necessary instructions to the hardware and handles any necessary translations between the hardware and the operating system.
- In short, device drivers play a crucial role in enabling the operating system to manage and communicate with hardware devices, ensuring that they operate correctly and efficiently.
Who invented the first mouse and when?
Who designed Magic Mouse?
The Magic Mouse was designed by Apple Inc., the American technology company based in Cupertino, California. The design team at Apple, led by Senior Vice President of Industrial Design, Jonathan Ive, developed the Magic Mouse to be a sleek and innovative device that would complement Apple’s line of desktop and laptop computers. The Magic Mouse was first introduced by Apple in 2009 and has since become a popular accessory for Mac users. It features a multi-touch surface that allows users to navigate their computer with intuitive gestures, making it a versatile and user-friendly input device.
Is it necessary to use a mouse pad?
No, it is not necessary to use a mouse pad, but it can be beneficial in several ways. Using a mouse pad can provide a consistent surface for your mouse, which can improve its accuracy and reduce its wear and tear. A mouse pad can also help to protect your desk or table surface from scratches caused by the bottom of the mouse. Additionally, some mouse pads come with extra features such as wrist rests, which can help to reduce strain and discomfort during prolonged computer use. However, if you have a high-quality mouse that can track accurately on a variety of surfaces, you may not need to use a mouse pad.
What is a Bluetooth mouse for a computer?
A Bluetooth mouse is a type of wireless mouse that uses Bluetooth technology to communicate with a computer. Unlike a wired mouse, a Bluetooth mouse does not require a physical connection to the computer but instead uses Bluetooth radio waves to send data between the mouse and the computer. To use a Bluetooth mouse, you need to ensure that your computer has Bluetooth capabilities and that the mouse is paired with the computer. Once paired, the Bluetooth mouse can be used just like a traditional wired or wireless mouse, providing a convenient and flexible way to control your computer without being tethered to a specific location. Bluetooth mice are commonly used with laptops or other portable computers, where a wired mouse may be inconvenient to use, or with desktop computers that have Bluetooth capabilities.
What is a wireless mouse called?
- A wireless mouse is a type of computer mouse that does not require a physical connection to the computer but instead uses wireless technology to communicate with the computer. A wireless mouse may use one of several different types of wireless technology, including Bluetooth, Wi-Fi, or a radio-frequency (RF) signal. Some wireless mice also come with a USB receiver that plugs into the computer to facilitate communication.
- Wireless mice are sometimes also referred to as cordless mice or simply wireless mice. The term “cordless” emphasizes that the mouse does not have a cord or cable connecting it to the computer, while “wireless” emphasizes that the mouse uses wireless technology to communicate.
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