Mchs Computer Applications And Technology General Technology Pre-test

Explanation
Software refers to computer programs and information. It is the collection of instructions and data that tell a computer how to perform specific tasks. This includes applications, operating systems, and other programs that enable a computer to function. Software is distinct from hardware, which refers to the physical components of a computer system. Output and input are not alternative names for computer programs and information, making them incorrect choices. Therefore, the correct answer is software.

Explanation
A monitor is the correct answer because it is the part of a computer that allows the user to view information on a screen. A monitor displays visual output from the computer, such as text, images, videos, and graphics. It allows users to interact with the computer by visually observing and navigating through the displayed content. Without a monitor, users would not be able to see the output of their computer and interact with it effectively.

Explanation
The motherboard is responsible for sending signals to other parts of the computer to coordinate their activities and ensure they work together efficiently. It acts as a central hub, connecting various components such as the CPU, hard drive, and RAM, and facilitating communication between them. Without a motherboard, the different parts of the computer would not be able to communicate effectively, leading to a lack of coordination and functionality. Therefore, the motherboard is the correct answer to the question.

Explanation
A keyboard is a device that allows the user to input data into a computer or other electronic device. It consists of a set of keys that are used to type letters, numbers, and other characters. Keyboards also have various function keys that can perform different operations, such as controlling volume or launching applications. Unlike a mouse, which is primarily used for pointing and clicking, a keyboard can perform most operations of a mouse, such as scrolling and selecting items. Therefore, a keyboard is the correct answer as it meets the given criteria.

Explanation
RAM (Random Access Memory) is a type of memory that is used for short-term storage in a computer. It is volatile memory, meaning that the data stored in RAM is lost when the computer is turned off or restarted. RAM is responsible for temporarily holding data that the computer needs to access quickly, such as open programs, operating system files, and data being actively processed. Unlike permanent storage devices like ROM, hard drives, and flash drives, RAM is not designed to retain information when the power is turned off.

Explanation
An icon is a small picture or image that represents a folder or a program. Icons are commonly used in computer interfaces to visually represent different functions or applications. They are typically small in size and designed to be easily recognizable and distinguishable. Icons serve as visual cues to help users navigate and interact with computer systems more efficiently.

Explanation
A laptop is a computer system that is designed to be portable and easily transported. Unlike desktop computers, which are typically larger and require a dedicated workspace, laptops are compact and lightweight, allowing users to carry them around conveniently. Laptops are equipped with a built-in screen, keyboard, and trackpad, making them self-contained and suitable for use in various locations. They are commonly used by students, professionals, and individuals who require a computer on the go.

Explanation
Word is a program that is commonly used for typing papers, designing basic tables, and processing text documents. It provides various features and tools for creating, editing, and formatting text, making it suitable for tasks such as writing essays, creating reports, and drafting letters. PowerPoint is mainly used for creating presentations, Excel is used for creating and managing spreadsheets, and Access is used for creating and managing databases. Therefore, Word is the most appropriate choice for the given tasks.

Explanation
The term "hardware" refers to all the physical components of a computer system, including the hard drive, tower, and motherboard. These components are essential for the functioning of a computer and are collectively known as hardware. Therefore, "hardware" is the correct answer as it encompasses all the mentioned parts of a computer.

Explanation
Scanner, Keyboard, and Mouse are all input devices because they allow the user to input data or commands into a computer system. A scanner is used to convert physical documents or images into digital format, which can be inputted into a computer. A keyboard allows the user to input text, numbers, and commands by pressing keys. A mouse allows the user to control the cursor and interact with graphical user interfaces by moving it on a surface and clicking buttons. On the other hand, a printer is an output device as it produces physical copies of digital documents or images.

Explanation
The printer and speakers are both output devices. A printer is used to produce hard copies of documents or images, making it an output device. Speakers, on the other hand, are used to produce sound or audio output, making them another example of an output device. Both devices receive information from a computer or other device and present it to the user in a tangible form (printed paper) or audible form (sound). The mouse and keyboard, on the other hand, are input devices as they are used to input information into the computer.

Explanation
Windows XP, Windows 7, and Linux are all examples of operating systems commonly used in computers. However, "Windows 333" is not a recognized operating system. It is likely a typo or a fictional name, as there is no known version of Windows with that designation.

Explanation
The CPU (Central Processing Unit) is responsible for performing calculations, executing instructions, and processing data in a computer. It is often referred to as the "brains" of the computer because it carries out the actual computation and controls the other hardware components. The motherboard is the main circuit board that connects all the components together, but it does not perform the calculations itself. RAM (Random Access Memory) and ROM (Read-Only Memory) are types of memory that store data temporarily and permanently, respectively, but they do not handle the actual processing of information. Therefore, the CPU is the correct answer as it is the component that carries out the real calculation and processing tasks.

Explanation
A desktop computer is a type of computer that is designed to be placed on a table or desk. Unlike a laptop or tablet, it is not portable and is meant to stay in one location. It typically consists of a tower or a casing that contains the computer's hardware components, such as the processor, memory, and storage, as well as a separate monitor, keyboard, and mouse. Desktop computers are commonly used in offices, homes, and schools where portability is not a requirement.

Explanation
A computer performs four main tasks: input, output, store, and process. Input refers to the information or data that is entered into the computer, such as typing on a keyboard or clicking a mouse. Output is the result or information that is displayed or produced by the computer, such as text on a screen or sound from speakers. Store involves saving or storing data on a storage device, such as a hard drive or memory card. Process refers to the computer's ability to perform calculations and manipulate data based on instructions given to it.

Explanation
The correct answer is Hard Drive. The explanation for this is that the hard drive is a storage device that stores data, programs, settings, and the operating system even when the computer is turned off. It is a non-volatile memory, meaning it retains information even without power. When the computer is turned on, the hard drive spins and allows the computer to read and write data to it. Therefore, the hard drive is responsible for storing and retrieving data while the computer is off and on.

Explanation
The given options list different units of computer storage capacity. Among these options, TB (terabyte) is the largest unit.

Explanation
The first item you should check if your computer will not come on is the power. This is because if there is no power supply, the computer will not be able to turn on or function properly. It is important to ensure that the power cable is securely connected to both the computer and the power outlet, and that the power outlet is working. If the power supply is functioning correctly, then other components such as the monitor cable, NIC card, and hard drive can be checked.

Explanation
Steve Jobs is the correct answer because he was one of the owners of Apple Computer Corp. alongside Steve Wozniak and Ronald Wayne. As a co-founder, Jobs played a crucial role in the development and success of Apple, contributing to the design and marketing of iconic products such as the iPhone, Macintosh, and iPod. His visionary leadership and innovative approach revolutionized the technology industry, making Apple one of the most valuable and influential companies in the world.

Explanation
The main function of the first digital computer system was to perform mathematical operations, specifically addition and subtraction. This early computer system was designed to automate and streamline calculations, making it faster and more accurate than manual methods. It laid the foundation for modern computing by demonstrating the potential for machines to handle complex mathematical tasks, paving the way for further advancements in computer technology.