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3 years ago

Explain how touch-tone dialing sends digits to the switch and write the name given to define touch-tone dialing.

Computers and Technology

1 answer:

Sergeu [11.5K]3 years ago

4 0

Answer: Please see below as the answer is self-explanatory

Explanation:

Digital phones, normally uses a keyboard, with the digits 0-9, and special characters like # and *.

When the caller presses any keyboard, an electronic circuit within the phone generates two pure sinusoids, of frequencies within the vocal bandwidth (between 300 Hz and 3 khz, roughly), which identifies uniquely (as decoded by the receiving switch) which was the key pressed.

In this way, the switch reconstructs the phone number called, separating country code, area code and the local number as it receives the tones.

This system is called DTMF (dual tone multi frequency).

You might be interested in

Which form of malware contains hidden code that is triggered by meeting or reaching a specific condition? (A) Trap door (B) Viru

Alborosie

Answer:

D- Trojan Horse

Explanation:

Trojan horse is a malware that has hidden code and look legitimate in order to damage or transfer harmful action on the computer.

Example hackers can disguise as Trojan horse by spying on the victims computer in order to gain access to sensitive data on the computer over the network.

3 0

3 years ago

With the sheets grouped, apply Underline to cell B5 and Double Underline to cell B6. Ungroup the worksheets. Note, use the Forma

Orlov [11]

Answer:

Check Explanation.

Explanation:

Task: (1). Apply Underline to cell B5 and Double Underline to cell B6.

(2). Ungroup the worksheets.

(3).use the Format Cells dialog box to ensure that the Underline styles Single and Double are applied, rather than Single Accounting or Double Accounting.

Steps to follow;

Step one: On the Excel document that you are working on, make sure you highlight from B6 cell to F6 cell.

Step two: Then, press CTRL+SHIFT+F.

Step three: from action in step two above, the "format cells dailogue box" will come up, click underline > (underline type) dropdown list > ok.

Step four: next, highlight from B7 to F7.

Step five: press CTRL+SHIFT+F. As in step two above.

Step Six: do the same thing as in Step three above.

Please note that to apply the SINGLE UNDERLINE, you need to type the data in the cell for cells of B6 to F6 ONLY.

Also, for DOUBLE UNDERLINE for B7 to F7; just type the data in the cell and it will apply.

4 0

3 years ago

Congress are smart becuase.....

spin [16.1K]

Answer:

If we are talking about government then they are smart bc of there two house policies, both are equal yet super unique. They make sure each state has an equal voice in the senate.

5 0

3 years ago

Write a static method called bothStart that allows the user to input two Strings and returns the String that is the longest subs

marishachu [46]

Answer:

public static String bothStart(String text1, String text2){
String s = "";
if(text1.length() > text2.length()) {
for (int i = 0; i < text2.length(); i++) {
if (text1.charAt(i) == text2.charAt(i)) {
s += text1.charAt(i);
}else{
break;
}
}
return s;
}else{
for (int i = 0; i < text1.length(); i++) {
if (text1.charAt(i) == text2.charAt(i)) {
s += text1.charAt(i);
}else{
break;
}
}
return s;
}
}

Explanation:

Let's start with creating a static method bothStart() with two String type parameters, text1 & text2 (Line 1).

Create a String type variable, s, which will hold the value of the longest substring that both inputs start with the same character (Line 2).

There are two possible situation here: either text1 longer than text2 or vice versa. Hence, we need to create if-else statements to handle these two position conditions (Line 4 & Line 13).

If the length of text1 is longer than text2, the for-loop should only traverse both of strings up to the length of the text2 (Line 5). Within the for-loop, we can use charAt() method to extract individual character from the text1 & text2 and compare with each other (Line 15). If they are matched, the character should be joined with the string s (Line 16). If not, break the loop.

The program logic from (Line 14 - 20) is similar to the code segment above (Line 4 -12) except for-loop traverse up to the length of text1 .

At the end, return the s as output (Line 21).

5 0

3 years ago

Please post detailed answers to the following questions. Please use complete sentences.

Aloiza [94]

Please post detailed answers to the following questions. Please use complete sentences t two artists from the following list: Phil Borges,Lee Jeffries.

<h3>What are photography opportunities?</h3>

The taking of constant or nevertheless snap shots furnished a brand new medium with which to seize reality, and modified the manner humans in general, and artists in particular, noticed the arena and created new inventive opportunities. Learning from the technological know-how of photography, artists evolved a selection of the latest portrayal techniques.

Photography modified our imaginative and prescient of the arena with the aid of using presenting greater get entry to to greater snap shots drawn from greater locations and instances withinside the global than ever before. Photography enabled snap shots to be copied and mass-distributed. The media-sphere became burgeoning.