1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
qwelly [4]
3 years ago
6

What is the first phone ever made?

Computers and Technology
1 answer:
pickupchik [31]3 years ago
3 0

Answer:

the Telephone

Explanation:

Before the invention of electromagnetic telephones, mechanical acoustic devices existed for transmitting speech and music over a greater distance greater than that of normal direct speech. The earliest mechanical telephones were based on sound transmission through pipes or other physical media.The acoustic tin can telephone, or "lovers' phone", has been known for centuries. It connects two diaphragms with a taut string or wire, which transmits sound by mechanical vibrations from one to the other along the wire (and not by a modulated electric current). The classic example is the children's toy made by connecting the bottoms of two paper cups, metal cans, or plastic bottles with tautly held string.Some of the earliest known experiments were conducted by the British physicist and polymath Robert Hooke from 1664 to 1685. An acoustic string phone made in 1667 is attributed to him.For a few years in the late 1800s, acoustic telephones were marketed commercially as a competitor to the electrical telephone. When the Bell telephone patents expired and many new telephone manufacturers began competing, acoustic telephone makers quickly went out of business. Their maximum range was very limited. An example of one such company was the Pulsion Telephone Supply Company created by Lemuel Mellett in Massachusetts, which designed its version in 1888 and deployed it on railroad right-of-ways.Additionally, speaking tubes have long been common, especially within buildings and aboard ships, and they are still in use today. The telephone emerged from the making and successive improvements of the electrical telegraph. In 1804, Spanish polymath and scientist Francisco Salva Campillo constructed an electrochemical telegraph.The first working telegraph was built by the English inventor Francis Ronalds in 1816 and used static electricity. An electromagnetic telegraph was created by Baron Schilling in 1832. Carl Friedrich Gauss and Wilhelm Weber built another electromagnetic telegraph in 1833 in Göttingen.At the University of Gottingen, the two have been working together in the field of magnetism. They built the first telegraph to connect the observatory and the Institute of physics, which was able to send eight words per minute.

You might be interested in
The purpose of an Internet _____ is to receive packets and send them along towards their final destination.
Bumek [7]

The tool that receives packets and send them along towards their final destination is; Internet Server

<h3>Internet Servers</h3>

We are told that the tool is used to receive packets and send them along towards their final destination.

  • Now, the tool is an internet server because internet servers are softwares and hardwares that make use of HTTP and other protocols to respond to client requests that are made over the World Wide Web.

Now, the main job of an internet server is to display website content through storing, processing and delivering webpages to the final destination.

Read more about internet server at; brainly.com/question/20602197

7 0
3 years ago
The use of encryption and authentication protocols is the standard method of countering attempts to alter or insert transmission
enyata [817]

Answer:

a) true.

Explanation:

Encryption is a form of cryptography and typically involves the process of converting or encoding informations in plaintext into a code, known as a ciphertext. Once, an information or data has been encrypted it can only be accessed and deciphered by an authorized user.

Some examples of encryption algorithms are 3DES, AES, RC4, RC5, and RSA.

On the other hand, authentication can be defined as the process of verifying the identity of an individual or electronic device. Authentication work based on the principle of matching an incoming request from a user or electronic device to a set of uniquely defined credentials.

Basically, authentication ensures a user is truly who he or she claims to be, as well as confirm that an electronic device is valid through the process of verification.

Digital certificates, smart cards, picture passwords, and biometrics are used to perform an authentication.

<em>Hence, in cybersecurity the use of encryption and authentication protocols is the standard method of countering attempts to alter or insert transmissions. </em>

5 0
3 years ago
What is an input, output and storage device?
stiv31 [10]
I phone because it stores things hil sends out things to other people
5 0
4 years ago
Which key(s) will launch the Spelling Checker dialog box? F8 F7 Ctrl+H F2
KIM [24]

Answer:

F7

Explanation:

Mostly in MS Office products, although a lot of other products will mimic the same well known key sequences as a way of enticing you to their platform.

6 0
3 years ago
Read 2 more answers
Putting commands in correct order so computers can read the commands
lana66690 [7]

Answer:

its b I think I'm pretty sure

8 0
3 years ago
Other questions:
  • It is not possible to convert a numbered list to a bulleted list in Word 2007. T or F
    13·1 answer
  • To say the internet has helped democratize knowledge means that
    11·1 answer
  • How can you add contrast between text and headlines in a document? increase the font size of the headline make the headline long
    6·1 answer
  • List the step in turning on a computer
    6·1 answer
  • On the Format tab, in the Shape Styles group, there is the option to change the _____. a. Shape Effects b. Shape Fill c. Shape O
    5·1 answer
  • Write an algorithm to solve general formula? ​
    10·1 answer
  • What are the process of boots up a computer?​
    15·2 answers
  • Which of the following is NOT an example of soft skill?
    8·1 answer
  • What is the difference between KE an PE
    8·1 answer
  • Cottonisagoodreflectorofsound​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!