10 Questions
Match the following components of a computer with their definitions:
Electronic device = Collection of unprocessed items Memory = Conveys meaning and is useful to people Instructions = Accepts data according to specified rules Data = Operating under the control of instructions
Match the following stages of the information processing cycle with their descriptions:
Input = Produces results Process = Accepts data Output = Conveys meaning and is useful to people Storage = Transforms data into information
Match the following types of computers with their characteristics:
Desktop = Portable and can be carried in a pocket Laptop = Designed for heavy use in a fixed location Mainframe = Used for personal use Supercomputer = Used for complex calculations and simulations
Match the following advantages of computers with their descriptions:
Speed = Ability to perform tasks more efficiently Accuracy = Ability to store large amounts of data Capacity = Ability to automate repetitive tasks Reliability = Ability to process information quickly
Match the following disadvantages of computers with their descriptions:
Health risks = Dependence on technology leading to social isolation Job displacement = Physical harm caused by prolonged use Environmental impact = Loss of jobs due to automation Dependence on technology = E-waste and energy consumption
Match the following components of a computer system with their roles:
Input device = Stores data and programs Central processing unit = Accepts data from the user Memory = Executes instructions and performs calculations Output device = Displays the results of processing
Match the following types of computer systems with their characteristics:
Open system = Proprietary and controlled by a single company Closed system = Open-source and accessible to the public Real-time system = Used for critical applications requiring immediate response Distributed system = Decentralized and consisting of multiple computers
Match the following stages of data processing with their descriptions:
Collection = Transforming data into a useful format Processing = Storing data for future use Storage = Gathering data from various sources Output = Producing the results of processing
Match the following computer hardware components with their functions:
CPU = Temporary storage of data and instructions RAM = Permanent storage of data and programs Hard drive = Execution of instructions and calculations Motherboard = Connection of hardware components
Match the following characteristics of computer literacy with their descriptions:
Basic knowledge = Understanding of computer systems and applications Current knowledge = Awareness of the latest developments in technology Understanding of uses = Ability to use computers effectively Digital literacy = Awareness of the impact of technology on society
Study Notes
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The Components of Computer
- A computer consists of electrical, electronic, and mechanical components known as hardware.
- Input Device: allows users to enter data and instructions into a computer.
- Output Device: conveys information to one or more people.
- System Unit: contains the electronic components that process data.
- Storage Device: holds data, instructions, and information for future use.
- Communications Device: enables a computer to send and receive data, instructions, and information to and from one or more computers or mobile devices.
Advantages and Disadvantages of Using Computers
- Advantages:
- Ability to perform the information processing cycle with amazing speed
- Reliability (low failure rate)
- Accuracy and consistency
- Ability to store a huge amount of data and information
- Ability to communicate with other computers and devices
- Disadvantages:
- Violation of privacy
- Public safety risks
- Impact on labor force
- Health risks
- Impact on the environment
Categories of Computer
- Personal Computers (desktop)
- Mobile Computers and Mobile Devices
- Game Consoles
- Servers
- Mainframes
- Supercomputers
- Embedded Computers
Personal Computers
- Two most popular styles of personal computers: PC and compatibles (use Windows operating system), Apple Macintosh (uses Macintosh operating system)
- A desktop computer is designed to fit entirely on or under a desk or table.
Mobile Computers and Mobile Devices
- Notebook Computer: portable, small enough to fit on your lap, also called a laptop computer, usually more expensive than a desktop computer with equal capabilities.
- Netbook: a type of notebook computer, smaller, lighter, often not as powerful as traditional notebook computers, suitable for word processing, running a Web browser, and connecting wirelessly to the Internet.
- Tablet PC: resembles a letter-sized slate, allows you to write on the screen using a digital pen, especially useful for taking notes.
- Mobile Devices: small, Internet-enabled telephones, also known as smartphones.
Game Consoles
- Mobile computing device designed for single-player or multiplayer video games.
Servers, Mainframe, Supercomputer
- Server: controls access to network resources and provides centralized storage.
- Mainframe: very powerful, expensive computer that supports thousands of connected users.
- Supercomputer: the fastest, most powerful, most expensive computer, used for applications requiring complex mathematical calculations and data analysis.
Embedded Computers
- Special-purpose computer that functions as a component in a larger product.
Learn about the different parts of a computer, including input devices, output devices, system units, and storage devices. Understand the functions of each component and how they work together to process data.
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