English, 06.07.2021 07:30, emileep13

1. o
2. Which of the following is not true about 1/0 devices and device drivers
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Which of the following is not true about I/O devices and device drivers?
a. Device drivers provide communication services between the physical device and the Os.
b. Device drivers handle input from the keyboard and mouse.
c. User applications usually communicate directly with a device driver.
d. The control register on a device takes commands from the device driver.
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Answers: 1

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Answers

answered: samiiegarciia

c. User applications usually communicate directly with a device driver.

Explanation:

A software can be defined as a set of executable instructions (codes) or collection of data that is used typically to instruct a computer on how to perform a specific task and solve a particular problem. Thus, it's a computer program or application that comprises of sets of code for performing specific tasks on the system.

The four (4) input-output (I/O) software layers includes the following;

I. Interrupt drivers (handlers): it is responsible for handling interruptions that occur while using a software on a computer system.

II. Device drivers: it controls the input-output (I/O) devices that are connected to a computer system through a wired or wireless connection.

III. Device-independent OS software: it allows for uniform interfacing and buffering for device drivers.

IV. User level software: it provides user programs with a simple user interface to perform input and output functions.

An operating system is a system software pre-installed on a computing device to manage or control software application, computer hardware and user processes.

This ultimately implies that, an operating system acts as an interface or intermediary between the computer end user and the hardware portion of the computer system (computer hardware) in the processing and execution of instructions.

Hence, user (software) applications make a request to the operating system (OS) to use a device and then the operating system (OS) communicates with the device driver.

In conclusion, user applications do not communicate directly with a device driver.

answered: Guest

I’m just thinking something from the top of my head so it may not be much so if weathering didn’t exist, there wouldn’t be anything to break up earth’s crust naturally. so by assumptions, the rocks on earth would be larger than they actually are since there’s nothing to break them up into smaller parts.overall, i’m not really sure, but all i know is that it’ll mess up the rock cycle that we have now.hoped this .

answered: Guest

Yes, just because one had a disability doesn't change the meaning of the word. they would most likely have an (whatever language) sign language to sign what's going on. it would be the same even if he was blind.

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