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Questions and Answers
What is the primary function of a motherboard in a computer?
What is the primary function of a motherboard in a computer?
Which of the following devices is considered a mobile device?
Which of the following devices is considered a mobile device?
What is the role of the Central Processing Unit (CPU) in a computer?
What is the role of the Central Processing Unit (CPU) in a computer?
Which type of computing device is known for its high speed and cost?
Which type of computing device is known for its high speed and cost?
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What is Random Access Memory (RAM) characterized by?
What is Random Access Memory (RAM) characterized by?
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What type of server is compact and designed to fit into a blade chassis?
What type of server is compact and designed to fit into a blade chassis?
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Which of these is NOT considered an internal component of a computer?
Which of these is NOT considered an internal component of a computer?
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Which mobile operating system is developed by Huawei?
Which mobile operating system is developed by Huawei?
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What is the primary function of a heat sink in a computer system?
What is the primary function of a heat sink in a computer system?
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Which storage device is characterized by using NAND flash memory cells?
Which storage device is characterized by using NAND flash memory cells?
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What type of port is commonly referred to as a mini-DIN connector?
What type of port is commonly referred to as a mini-DIN connector?
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Which connector is primarily used for high-definition video and audio?
Which connector is primarily used for high-definition video and audio?
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What is the function of external SATA (eSATA) connectors?
What is the function of external SATA (eSATA) connectors?
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Which port type is primarily used for wired network connectivity?
Which port type is primarily used for wired network connectivity?
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Which of the following describes a TRS connector?
Which of the following describes a TRS connector?
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Which type of port is typically used to connect a printer to a computer?
Which type of port is typically used to connect a printer to a computer?
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Study Notes
Computing Devices
- Computing devices utilize binary data for automatic calculations.
- Types of computing devices include personal computers (desktops, laptops), mobile devices (smartphones, tablets), servers, supercomputers, mainframes, and gaming consoles.
Mobile Devices
- Mobile devices feature touchscreens and include smartphones and tablets.
- Popular mobile operating systems:
- Android: Versatile, used by various manufacturers.
- iOS: Significant in the premium smartphone sector.
- KaiOS: Designed for feature phones and low-end smartphones, enhancing affordability.
- Tizen: Samsung's operating system.
- HarmonyOS (Hongmeng OS): Developed by Huawei.
- Linux-based custom ROMs: Not standalone; custom Android ROMs like LineageOS.
Server Types
- Rack Server: Used in data centers for heavy-duty tasks.
- Tower Server: Resembles traditional desktops, optimized for server tasks.
- Blade Server: Compact design for efficient space utilization.
Supercomputers
- Fastest, most expensive computing devices, employed for specialized tasks in research for hospitals, universities, and governments.
Mainframes
- Large-scale computers designed to serve extensive organizational needs.
Internal Computer Components
- Motherboard: Central component connecting all parts.
- CPU: Executes all computer calculations.
- RAM: Volatile memory needing constant power; measured in bytes.
- GPU (Graphics Card): Accelerates image/video rendering.
- Network Interface Card (NIC): Enables network connectivity.
- Optical Drive: Reads/writes optical discs (CDs, DVDs).
- Power Supply: Converts AC power from wall outlets.
- Expansion Slot: Allows additional circuit boards to be installed.
- Cooling Systems: Regulate CPU/GPU temperature to prevent overheating.
- Storage Devices: Store and access data; includes HDD (magnetic disks) and SSD (NAND flash).
Additional Storage Types
- External hard drives, USB flash drives, memory cards, optical disks, Network Attached Storage (NAS), cloud storage.
Computer Connectors
- Ports serve as hardware interfaces for device connectivity; commonly distinguished by gender (female jacks for holes, male plugs for pins).
Connector Types
- PS/2 Ports: 6-pin ports for keyboards/mice.
- Serial Ports: Transfer data one bit at a time via a single wire.
- Parallel Ports: Connects to printers.
- Power Connector: Supplies electrical power to computers.
- USB Ports: Latest standard for peripheral connections.
- FireWire Ports: High-speed connections for peripherals.
- Thunderbolt Ports: Input-output connector from Apple and Intel, supports display signals.
- Audio Ports: Handle audio/video connections.
- VGA/DVI: For connecting monitors, with DVI maintaining digital data.
- HDMI: Interconnects audio/video sources.
- eSATA Connectors: For external storage devices.
- RJ-45 Ports: Used in networks and telephone systems.
- TR/TRS & XLR Connectors: For balanced audio cables.
- RCA Connectors: Carry audio and video transmission.
- DisplayPort: Digital output aiming to replace DVI and VGA.
Peripheral Devices
- Enhance computer functionality via input, output, storage, and data sharing capabilities.
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Description
This quiz explores the fundamentals of computing devices, including the types of devices such as personal computers and mobile devices. It covers specific examples and features, like operating systems used in mobile devices. Test your knowledge on the characteristics that define these technologies.
