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Three hardware devices need to communicate with the CPU simultaneously. Which option best will each device need to issue?
Suggested Answer: C
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24 comments · newest first
SA
Samira
3 months ago
Good point! Prioritizing interrupts can help manage that situation effectively.
LY
Lynda
4 months ago
But what if they all interrupt at once? Wouldn’t that cause confusion?
MA
Malcolm
5 months ago
Agreed! Interrupts allow multiple devices to signal the CPU without waiting.
RO
Rolland
5 months ago
I think they need to issue interrupts. It’s the best way to get CPU attention.
GA
Galen
5 months ago
Yep, the CPU handles them based on priority levels!
LA
Latosha
6 months ago
Isn't there a priority system for those interrupts?
SY
Sylvie
6 months ago
Wait, can they all interrupt at the same time?
AN
Antonio
6 months ago
Totally agree, interrupts are key for multitasking!
DO
Domonique
6 months ago
Each device needs to issue an interrupt request.
TE
Terrilyn
6 months ago
Interrupt request is the obvious choice. The CPU can't ignore that, right?
ST
Stevie
7 months ago
Interrupt request is the way to go. Gotta cut in line and demand that CPU time!
HE
Helga
7 months ago
Interrupt request, of course! That's the only way to get the CPU's attention.
TO
Toshia
7 months ago
I feel like the answer is related to DMA, but I'm confused about whether that's the best option for simultaneous communication.
MA
Marsha
7 months ago
This reminds me of a practice question where devices had to share the bus. I think they might need to send a signal to indicate they want to communicate.
TR
Tracey
8 months ago
I remember something about priority levels for interrupts, but I can't recall if all devices can interrupt at the same time or if they have to wait their turn.
RE
Rex
8 months ago
I think each device needs to issue an interrupt request to the CPU, but I'm not entirely sure how that works with multiple devices.
RE
Ressie
8 months ago
I've got a strategy in mind. I'll start by listing out the key communication methods, then analyze how each one would work for multiple simultaneous devices.
KA
Kayleigh
8 months ago
This question is testing our understanding of CPU interfacing. I'll need to carefully evaluate the requirements and match them to the available communication options.
LE
Leah
8 months ago
I'm a bit confused on this one. I'll need to review my notes on CPU communication protocols to figure out the optimal solution.
DE
Detra
9 months ago
Okay, I think I know the right approach here. I'll need to consider the pros and cons of each communication option to determine the best fit.
ER
Ernestine
9 months ago
Hmm, this seems like a tricky one. I'll need to think through the different communication options and how they might work for multiple devices.
NO
Noemi
3 months ago
I prefer DMA for efficiency in data transfer.
FE
Felicidad
3 months ago
Yeah, but polling could work too, right?
RO
Roy
3 months ago
I think they should use interrupts to communicate.