SK0-003 · Question #271
Which of the following components found in a legacy server has a 16-bit bus?
The correct answer is C. ISA. The Industry Standard Architecture (ISA) expansion bus, common in legacy servers, operates with a 16-bit data path, distinguishing it from newer bus architectures.
Question
Which of the following components found in a legacy server has a 16-bit bus?
Options
- AUSB
- BPCI
- CISA
- DAGP
How the community answered
(34 responses)- A6% (2)
- C91% (31)
- D3% (1)
Why each option
The Industry Standard Architecture (ISA) expansion bus, common in legacy servers, operates with a 16-bit data path, distinguishing it from newer bus architectures.
USB (Universal Serial Bus) is a serial interface, not a parallel bus with a defined 16-bit width for data transfer.
PCI (Peripheral Component Interconnect) is a 32-bit or 64-bit parallel bus, making it significantly wider and faster than a 16-bit bus.
The Industry Standard Architecture (ISA) bus, first introduced with the IBM PC/AT, natively supports a 16-bit data path at 8.33 MHz. This bus type was prevalent in older server and desktop systems for connecting various expansion cards before the advent of faster interfaces like PCI.
AGP (Accelerated Graphics Port) is a specialized slot for video cards, which is 32-bit wide, and designed to provide dedicated, high-speed access to memory for graphics processing.
Concept tested: Legacy expansion bus architectures (ISA)
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