In which of the four I/O software layers is each of the following done. (a) Computing the track, sector, and head for a disk read. (b) Writing commands to the device registers. (c) Checking to see if the user is permitted to use the device. (d) Converting binary integers to ASCII for printing.

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.

Some of the functions of the input-output (I/O) software layers are;

(a) Device drivers: computing the track, sector, and head for a disk read.

(b) Device drivers: writing commands to the device registers.

(c) Device-independent os software: checking to see if the user is permitted to use the device.

(d) User level software: converting binary integers to ASCII for printing.