Answer:
4. Command line interface (CLI)
Explanation:
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.
Some examples of an operating system on computers are QNX, Linux, OpenVMS, MacOS, Microsoft windows, IBM, Solaris, VM etc.
A Command line interface (CLI) refers to a text-based user interface that allow users to operate a software application or program, as well as manage and execute operating system functions by typing standard line of commands into the text-based user interface with a real-time response.
Basically, the CLI is solely text-based and as such requires a thorough knowledge and understanding of global commands, as well as administrative privileges in some cases.
<em>Hence, the operating system function which has a steeper learning curve (more difficult to learn) and can potentially break the system without careful use of its operations is the Command line interface (CLI). </em>
They are called the navigation keys
Answer:
Awww what happened? Sometimes its hard for me to keep a promise.
Explanation:
Answer:
The correct answer is:
"a laser pointer and a remote control"
Explanation:
Let us look at the options one by one.
notes pages and an LCD projector
When she is using these options, she cannot have the freedom to move as she has to operate the projector somehow.
laptop computer and a pointer
In this case she has to operate laptop so movement will be reduced.
<u>A laser pointer and remote control</u> will give her a lot of freedom to move as she can use the remote control to operate the slides and the pointer to point stuff ont the slides.
Hence,
The correct answer is:
"a laser pointer and a remote control"
