Podcast
Questions and Answers
What is the primary purpose of the Peripheral Component Interconnect (PCI) bus?
What is the primary purpose of the Peripheral Component Interconnect (PCI) bus?
The IEEE 1394 (FireWire) ports are commonly found on modern PCs.
The IEEE 1394 (FireWire) ports are commonly found on modern PCs.
True
What measure is traditionally used to assess bus performance?
What measure is traditionally used to assess bus performance?
The number of bits a bus can transfer at one time.
The _______ bus architecture enables video cards to have direct access to RAM.
The _______ bus architecture enables video cards to have direct access to RAM.
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How many devices can a Universal Serial Bus (USB) support?
How many devices can a Universal Serial Bus (USB) support?
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The ISA bus is 32 bits wide.
The ISA bus is 32 bits wide.
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What type of card is referred to as a PC Card?
What type of card is referred to as a PC Card?
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A wider bus allows for __________ data to be transferred at the same time.
A wider bus allows for __________ data to be transferred at the same time.
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Match the following bus standards with their characteristics:
Match the following bus standards with their characteristics:
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What does the term megahertz (MHz) measure in the context of bus performance?
What does the term megahertz (MHz) measure in the context of bus performance?
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Study Notes
Bus Technology
- Industry Standard Architecture (ISA): A 16-bit data bus released in the mid-1980s, still used in many computers to connect slower devices like modems and input devices to the CPU.
- Local bus: An internal system bus that runs between components on the motherboard, connecting faster devices to the CPU.
- Peripheral Component Interconnect (PCI): Designed by Intel to simplify the integration of new data types, like audio, video, and graphics.
- Accelerated Graphics Port (AGP): This bus architecture gives video cards direct access to RAM, improving graphics performance. The AGP standard facilitated the development of accelerated video cards, supporting 3D and full-motion video.
- Universal Serial Bus (USB): A hot-swappable bus found on all modern machines, allowing users to connect or disconnect devices without affecting the machine. Supports up to 127 devices organized in daisy chain or hub layouts.
- IEEE 1394 (FireWire): Allows connection to video devices like cameras and video cameras. Many digital TV connections also used FireWire.
- PC Card: Used in laptops, hot-swappable and about the size of a stack of four credit cards. Common uses include Wi-Fi cards, network cards, and external modems. The current form is called CardBus, an external extension of an internal PCI bus.
Bus Performance Measurement
- Bus performance was traditionally measured by the number of bits it could transfer at one time.
- Now, buses are also measured by their data transfer rate (amount of data transferred per second).
- Data transfer rates are often measured in megahertz (MHz) or gigahertz (GHz).
- Higher numbers mean faster data transfer.
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Description
Explore the various bus architectures used in computing, from the classic Industry Standard Architecture (ISA) to the modern Universal Serial Bus (USB). This quiz covers essential technologies that connect devices to the CPU and enhance performance in computing systems. Test your knowledge of these critical components!
