Exam (elaborations)
COP 4600 - Final Exam Questions and Answers (Latest Update 2024) Verified Answers
- Course
- Institution
COP 4600 - Final Exam Questions and Answers (Latest Update 2024) Verified Answers
[Show more]
Content preview
COP 4600 - Final Exam Questions andAnswers (Latest Update 2024) Verified
Answers
What must I/O devices be connected to in order to do
anything? - Correct Answer ✅A computer
What is a port? - Correct Answer ✅A set of wires that
connects an I/O device and the computer.
A device that allows other devices to hook up to it in turn is
said to support what? - Correct Answer ✅Daisy-chained
devices
What is a bus? - Correct Answer ✅A common set fo wires
used by more than one I/O device
If devices connect to ports, what do ports connect to? -
Correct Answer ✅Buses
What is a controller? - Correct Answer ✅The electronics
that manage a port, bus or I/O device
,COP 4600 - Final Exam Questions and
Answers (Latest Update 2024) Verified
Answers
What does the operating system actually talk to? - Correct
Answer ✅The device's controller
What is a data in register? - Correct Answer ✅Allows the
computer to get input from the device
What is a data out register? - Correct Answer ✅Allows the
computer to send output to the device
What is a status register? - Correct Answer ✅Indicates the
current state of the device, including whether the current
command has completed, whether the data registers are
ready, and whether there is an error.
What is a control register? - Correct Answer ✅A register
that is used to send commands to the device
What does the interrupt/trap mechanism handle? - Correct
Answer ✅User-process calls for I/O, and notifications for
those calls. Notifications from hardware about I/O completion,
, COP 4600 - Final Exam Questions and
Answers (Latest Update 2024) Verified
Answers
memory exceptions, arithmetic exceptions (divide by zero),
and privilege exceptions.
What is required in order for direct memory access to work? -
Correct Answer ✅Device controllers must be given their
own channel to system memory, with its own control
registers.
What is a device driver? - Correct Answer ✅A piece of
software intended to handle interfacing with a particular
device's controller.
What are some I/O device characteristics? - Correct Answer
✅Stream versus block, sequential versus random,
synchronous versus asynchronous, sharable versus
dedicated, read/write versus read-only write-only, speed of
operation.
What are the fundamental functions of block devices? -
Correct Answer ✅Read, write, and seek.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Allivia. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $15.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
73314 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now