Questions and Answers
Which type of memory can be erased electronically and rewritten?
ROM can be modified after it has been programmed.
False
What impact can wearable technology have on businesses?
can positively impact employees' health and wellbeing, improving productivity levels.
The _____ connects all internal components of a computer, such as RAM and CPU.
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Match the emerging mobile device features with their descriptions:
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What is the primary purpose of a data center?
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A supercomputer is typically less expensive than a regular computer.
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Name one common use of data centers in the financial industry.
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A ______ is a terminal designed with limited capabilities that appears like a desktop.
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Which of the following tasks are supercomputers typically used for?
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Cloud computing allows access to resources and services over the internet.
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What component of a computer serves as the intermediate between software and hardware?
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Match the following mobile devices with their functionality:
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Virtualization allows a single server to create and manage several smaller ______.
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Which type of computer is designed to be portable and lightweight?
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A server is designed to perform input, processing, output, and storage activities independently for a single user.
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What does a POS terminal do?
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What is virtualization in computing?
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A __________ server stores and runs applications.
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Which of the following is a type of server that manages network traffic?
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Match each computer type with its description:
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A __________ server is responsible for backing up and restoring files.
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All components of a desktop computer can fit under a desk, making it ideal for compact spaces.
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What is the primary function of a GPU?
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RAM is a type of non-volatile memory.
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What does CPU stand for?
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The __________ computer is designed for special purposes and functions as a component in a larger product.
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Match the following components with their descriptions:
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Which component is primarily responsible for executing stored instructions?
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A stick computer is typically larger than a USB flash drive.
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Name one leading manufacturer of personal computer processors.
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The __________ is the main part of a computer that controls and executes actions.
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What type of device is commonly used for streaming media at home?
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Study Notes
Types of Computers
- Categories include laptops, tablets, desktops, servers, terminals, smartphones, digital cameras, e-books, portable media players, wearable devices, game devices, and embedded computers.
Laptops
- Portable, thin, and lightweight devices designed for personal use and mobility.
Tablets
- Thin and lightweight devices featuring touch screens for user interaction.
Desktops
- Intended for stationary use, capable of independent processing, input, output, and storage.
- Can be arranged as all-in-one systems, fitting under desks.
Servers
- Provide dedicated services to other computers or devices on a network.
- Designed for tasks like web page display and email management.
- Key components include CPU, RAM, storage, and bandwidth.
Types of Servers
- Application Server: Runs and stores applications.
- Backup Server: Backs up and restores data.
- Network Server: Manages network traffic.
- Database Server: Stores and accesses databases.
- Domain Name Server: Maps domain names to IP addresses.
Virtualization
- Allows running multiple virtual servers on a single physical server.
- Benefits include reduced costs and physical space, but risks include single point of failure and complexity.
Server Farm
- A collection of servers in one location, known as data centers.
- Supports web hosting, cloud computing, and data storage.
Mainframe Computers
- Large, powerful systems capable of handling thousands of user connections, often in finance sectors for transaction processing.
Terminals
- Limited processing power, used to send or receive data from a server.
- POS terminals in retail for purchases and inventory management.
Supercomputers
- The fastest and most powerful computers for complex simulations and intensive tasks like weather modeling and nuclear simulations.
Cloud Computing
- Services and resources accessible via the internet.
Smartphones
- Internet-enabled devices featuring applications like calendars, games, and browsers, often with touch screens.
Digital Cameras
- Mobile devices for taking and storing digital photos.
Portable Media Players
- Devices for organizing and playing digital media on the go.
E-Book Readers
- Devices specifically for reading electronic books.
Wearable Devices
- Small computing devices worn by consumers, enhancing personal technology engagement.
Embedded Computers
- Special-purpose systems integrated into larger devices, such as automobiles and home automation systems.
Computer Components
- A computer performs various tasks based on provided instructions.
- Components include hardware (physical parts), software (programs), and firmware (software interfacing hardware).
Central Processing Unit (CPU)
- The brain of the computer, responsible for executing instructions, processing data, and coordinating actions.
- Modern CPUs consist of multiple cores for enhanced performance.
Graphics Processing Unit (GPU)
- Specialized hardware designed for rendering graphics and executing parallel tasks, beneficial for gaming and machine learning.
Memory Types
- Volatile Memory: Temporary, loses data when powered off (e.g., RAM).
- Non-Volatile Memory: Permanent storage retaining data when powered off (e.g., ROM, flash memory).
Hard Drive
- Secondary storage with large capacity, slower access than RAM, and serves for long-term data retention.
Trends in Mobile Devices
- Increasing convenience and integration of features with advances in technology, such as:
- Fingerprint scanners for secure access.
- Near Field Communication (NFC) for secure payments.
- Wearable technologies impacting health and productivity.
Emerging Technologies
- 5G Connectivity: Offers faster speeds and reduced latency for enhanced user experiences.
- AI Integration: Improving device functionalities and user experience personalization.
Usability in Mobile Devices
- Comprehensive understanding of user needs through research, enhancing overall user satisfaction.
- User interface should prioritize consistency, simplicity, and accessibility.
Motherboard
- The main circuit board connecting internal components (CPU, RAM) and external devices (USBs), facilitating information flow within the computer.
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Description
This quiz explores the functions and characteristics of data centers, including distributed computing resources and services. Emphasis is placed on their use in web hosting, cloud computing, and financial industry applications like transaction processing and database management. Test your knowledge on the powerful servers that enable these operations.
