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Questions and Answers
What is the primary function of a keyboard?
What is the primary function of a keyboard?
Which device is considered an output peripheral?
Which device is considered an output peripheral?
What type of device is a PC camera commonly known as?
What type of device is a PC camera commonly known as?
Which of the following describes the function of a scanner?
Which of the following describes the function of a scanner?
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How does a laser printer typically create prints?
How does a laser printer typically create prints?
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What is the primary function of peripheral devices in a computer system?
What is the primary function of peripheral devices in a computer system?
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Which statement accurately describes an expansion card?
Which statement accurately describes an expansion card?
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What distinguishes a desktop computer from other types of computers?
What distinguishes a desktop computer from other types of computers?
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What is the difference between a hardcopy and a softcopy?
What is the difference between a hardcopy and a softcopy?
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Which component is NOT considered part of the computer system unit?
Which component is NOT considered part of the computer system unit?
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Study Notes
Computer Basics
- Peripheral Devices: Devices that input or output information from a computer.
- Expansion Slots: Connectors on the motherboard for adding functionality via expansion cards.
- Expansion Cards: Printed circuit boards added into expansion slots to enhance computer capabilities.
- Computer Ports: Sockets for connecting peripheral devices located at the back of the system unit.
- Desktop Computer: A personal computer designed for stationary use, typically larger and more powerful.
Computer Components
- Computer System Unit: The case that houses the computer’s main components.
- Hardcopy vs. Softcopy: Hardcopy refers to physically printed files; softcopy refers to files stored on a computer.
- Bus: A system of pathways used for communication between components.
Input Devices
- Keyboard: A typewriter-style device for entering text and commands.
- Mouse: A handheld device for navigating and selecting objects on the screen.
- Microphone: Converts sound into electrical signals for voice recording or communication.
- PC Camera (Webcam): Streams video to a computer in real-time, used for video calls.
- Scanner: Digitizes hardcopy documents or images into digital formats.
Output Devices
- Printer: Creates physical copies of documents and images; types include inkjet, laser, and dot-matrix.
Computer System Unit Parts
- Motherboard: The main printed circuit board, connecting all electronic components; sizes include ATX, mATX, and mini-ITX.
- CPU: Central Processing Unit; the brain of the computer, executing program instructions.
- RAM (Random Access Memory): Volatile memory used for temporary data storage while applications are running; typical capacities are 2GB, 4GB, 8GB, and 16GB.
Types of Memory
- ROM (Read-Only Memory): Non-volatile memory retaining data without power.
- RAM (Random Access Memory): Volatile memory losing contents when powered off.
Expansion Slots
- PCI (Peripheral Component Interconnect): Introduced in 1992, replaced by PCI Express; supports 32-bit and 64-bit devices.
- AGP (Accelerated Graphics Port): Dedicated to graphics cards, allowing direct memory access; replaced by PCI Express.
- PCI Express (PCIe): Approved in 2002, high-speed expansion bus that supports multiple lanes for data transfer (up to 4,000 MB/s).
Networking and Sound Cards
- WiFi/Bluetooth Card: Enables wireless connectivity and file transfer; requires PCIe x1 slot.
- Sound Card: Processes audio output; may be integrated on the motherboard or an expansion card.
- Network Interface Card (NIC): Connects computers to networks using Ethernet cables; commonly integrated into motherboards.
- Modem Card: Modulates and demodulates signals for data transmission over telephone lines; typically requires a PCI slot.
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Description
This quiz covers essential topics related to assembling computer hardware, including understanding peripheral devices, system unit parts, and expansion slots and cards. Suitable for students at Batanes National Science High School, it aims to enhance knowledge and skills in information and communications technology.
