Computer Literacy Module 1 : Computer Basics

A mouse is a hand-held device that controls the pointer on the screen. It is used to navigate and interact with graphical user interfaces, allowing users to click, select, and move objects on the screen. The mouse typically consists of a physical device with buttons and a scroll wheel, which when moved, translates the motion into corresponding movements of the pointer on the screen.

The correct answer is Central Processing Unit. The CPU is the primary component of a computer that performs most of the processing inside the computer. It is responsible for executing instructions, performing calculations, and managing the flow of data within the computer system. The term "Central" refers to its central role in coordinating and executing tasks in the computer. The CPU is also sometimes referred to as the "brain" of the computer.

Word processing software is the most commonly used application because it allows users to create, edit, and format text documents. It provides features such as spell check, grammar check, and formatting options like font styles, sizes, and colors. Word processing software is used in various settings, including offices, schools, and homes, for tasks such as writing letters, creating reports, and drafting documents. Its versatility and user-friendly interface make it a popular choice for individuals and organizations alike.

The correct answer is "Processing" because it refers to the actions performed by a computer to manipulate data. This includes tasks such as calculations, data transformations, and executing instructions. Processing is a fundamental function of a computer that allows it to perform various operations and tasks based on the input provided.

Output refers to the result or information that is produced by a computer after processing input data. It can be in the form of text, images, sounds, or any other form that can be interpreted by humans or other devices. In this context, the work done by the computer is producing output, which is the correct answer.

Inkjet printers use nozzles to spray ink onto the paper, allowing for precise and detailed printing. This technology is commonly used in home and office printers as it provides high-quality prints at an affordable cost. Inkjet printers are known for their ability to produce vibrant colors and are suitable for printing photos, documents, and graphics.

The CPU (Central Processing Unit) is often referred to as the "brain" of the computer because it is responsible for executing instructions and performing calculations. It is the primary component that carries out the majority of the computer's processing tasks. The CPU interprets and executes instructions from the computer's memory, performs arithmetic and logical operations, and controls the flow of data within the computer system. Without the CPU, a computer would not be able to perform any tasks or functions.

The given options consist of three types of printers: Dot-Matrix, Inkjet, and Laser. However, "Portrait" is not a type of printer. It is likely that "Portrait" was included as a distractor in the options, as it does not relate to any specific type of printer technology.

The keyboard is the most commonly used input device as it allows users to input text and commands into a computer or other electronic device. It is used for typing, navigating through menus, and executing various functions. Keyboards have become an essential tool for communication and interaction with computers, making them the primary input device for most users.

RAM stands for Random Access Memory. It is a type of computer memory that can both read and write data. However, the data stored in RAM is volatile, meaning it is lost when the computer is turned off or restarted. RAM is used to temporarily store data that the computer is actively using, such as the operating system, applications, and files that are currently open. It provides fast access to data, allowing the computer to quickly retrieve and manipulate information.

Hard drives are magnetic cylinders on which information in the computer is stored. They consist of a series of spinning disks coated with a magnetic material. Data is written and read from these disks using magnetic heads that move across the surface of the disks. This allows for large amounts of data to be stored and accessed quickly. DVD, thumb drive, CD, and zip disk are all storage devices, but they do not use magnetic cylinders like a hard drive does.

The correct answer is "Operating System." An operating system is a software that manages the hardware and other software on a computer. It provides a user interface, manages memory and processes, controls input and output devices, and ensures the overall functionality and security of the computer system. It acts as an intermediary between the user and the computer hardware, allowing users to interact with the computer and run various applications.

Application software refers to software that is designed to perform specific tasks or functions, such as word processing or spreadsheets. Unlike system software or operating systems, application software is not responsible for managing the computer's hardware or operating system. Instead, it focuses on providing functionality and tools for users to complete specific tasks or achieve specific goals. Examples of application software include Microsoft Word, Excel, and PowerPoint, which are used for word processing, creating spreadsheets, and making presentations, respectively.

Software refers to a set of instructions or programs that are designed to perform specific tasks on a computer. It can be in the form of applications, operating systems, or utilities that enable the computer to carry out various functions. Unlike hardware components like BIOS, mouse, and hard drive which are physical parts of a computer, software is intangible and is responsible for controlling and managing the hardware. It provides the necessary instructions to the computer on how to perform specific tasks, making it an essential component for any computer system.

Input refers to the process of providing data or instructions to a computer system. It involves sending information from an external source, such as a keyboard or mouse, to the computer for processing. This can include entering text, clicking buttons, or scanning documents. Input is an essential component of the communication between humans and computers, allowing users to interact with and control the system.

The correct answer is "Information Processing Cycle" because the question is asking for the steps involved in processing information. The four steps mentioned in the answer options - input, processing, output, and storage - are commonly recognized as the key stages in the information processing cycle. These steps involve receiving data or input, manipulating or processing the data, producing output or results, and storing the information for future use. Therefore, "Information Processing Cycle" is the most suitable explanation for the given question.

Hardware refers to the physical components of a computer system. It includes all the tangible parts that make up a computer, such as the system unit, CPU, and RAM. Software, on the other hand, refers to the programs and data that are stored on the computer and allow it to perform specific tasks. Therefore, the correct answer is hardware because it specifically mentions the equipment that makes up the computer.

A port is a hardware interface that allows other hardware devices, such as a keyboard or monitor, to be connected to the system unit (which houses the motherboard and CPU). It serves as a communication channel through which data can be transferred between the connected devices and the computer.

The system unit contains the disk drives and stores the processor. It is the main component of a computer that houses all the essential hardware components, including the motherboard, CPU, and storage devices. The system unit is responsible for processing and storing data, making it a crucial part of the computer system.