Answer:
Option A is the correct answer for the above question.
Explanation:
The keyboard is a device, by which a human can instruct the computer in the text form. There are so many keyboards in which, thumb keyboard is one of them. The thumb keyboard is found in mobile phones, smartphones or PDA phones, which is used for personal use. It is a designed layout of the keyboard that can be placed on the hand of the human and a person can type on its with the help of his thumb.
The above question asked about the type of the keyboard which is used in various smartphones and other phones. That keyboard is thumb keyboard which is described above and it is stated from the option A. So option A is the correct answer while the other is not because--
- Option B states about the traditional keyboard which is used for the PC only.
- Option C states about the Notebook keyboard which is used for the Notebook computers only.
- Option D states about combination which is not a type of keyboard.
Answer: File History
Explanation: File history is the history that gets created in the form of back-up that keeps the record of the stored files. It is used in protecting the files that is present on the system like desktop, libraries,etc.
It creates the duplicate records in the storage for any future use and it can also be restored easily.File history also facilitates with feature of deleting the unnecessary history afterward when the user wants.
- <em><u>Fiber to the building</u></em>
Explanation:
- <em><u>Fiber to the building</u></em><em><u> </u></em><em>is a type of fiber-optic cable installation where the fiber cable goes to a point on a shared property and the other cabling provides the connection to single homes, offices or other spaces.</em>
<h2><em>hope </em><em>it</em><em> helps</em><em>!</em></h2>
Answer: They are forms of of carrying data from communication devices. The difference is the medium where the signal travels.
Explanation:
Hi, the difference between guided and unguided media is that in the guided media, the signal travels through a physical medium whereas, in unguided media, the signal travels through the air.
Guided and unguided media are types of transmission media.
The transmission media carries electromagnetic signals, that transmit data between communicating devices like computers.
The OS shell allows access to the operating system services