Answer:
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.
the word "gained" in this sentence means "achieved" or "accomplished"
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The poet, Yeats, is describing the daily routing of an old mother. He presents his ideas in a poem describing how she completes those activities. He is descring the old woman as hardworking and tired, and he presents these ideas in the last line, where it says that she must work because she is old and the seed of the fire (a lantern most likely representing her life or her day) gets feeble and cold (it ends). In essence, the author describes the old woman as harworking and tired, and at the end of the day, the "fire," or the Sun, grows feeble and cold, signifying that the day is ending and the cycle will begin again tomorrow.
Answer:
1•Father told me not to tell a lie.
2•He said John will write a letter tomorrow.
3•"How clever I am" said the Fox.
4•Mother asked me what I was doing now.
5•She asked me if I could help her.
6•"The sun rises in the east"said the teacher.
7•They told me congratulations.
8•He said that today is a sunny day.
9•They said"hurray they won the game".
10•"Mam is a good girl"said her.
