What is binary number system? Why is it used in computer system?
Answer:
Computers depend mainly on binary because it’s more time efficient for them to so.
Explanation:
It’s easier to identify 0 as “off” and 1 as “on”. As you may know, transistors are the fundamental blocks of microprocessors and ICs. The reasons this is the case is that these transistors form logic gates which can carry out basic logic operations. These logic gates are a huge step into making microprocessors/ICs/etc. And what do these logic gates depend on? They depend on binary.
Whoa whoa, wait a minute. Let’s first take a step back to know a thing or two about logic gates.
These logic gate can be constructed from transistors. They carry basic logic operations. You have one or more inputs “entering” the logic gate ——-> A certain operation is performed on them ——-> you get your output. The input is a voltage. This voltage it can be interpreted as an “on” or “off” according to the gate. Once again these offs and ons are 0s and 1s. For example the Inverter/NOT gate is a gate that simply takes an input and gives its inverse. For example:-
A low voltage/an “off” signal/ a “0” “enters” the NOT gate. ——-> A high voltage/an “on” signal/ a “1” is the result of the operation performed
(In the above example low voltage = “off” signal = 0, high voltage = “on” signal = 1)
As you can see, a 0 enters the NOT gate and a 1 comes out or vice versa. Now, if you were a logic gate, you’d prefer working with just 0s and 1s right? I would. This would be much easier to work with than a lot of different values.
It’s a herculean task to work with these though as a human. And fortunately, programming languages exist for giving the computer instructions to do in a “language” other than its own.
Hoda needs to create a chart that is associated with an Excel spreadsheet. She needs to ensure that if the data in the spreadsheet changes, the chart in her presentation will be updated. Which option must she choose?
Embed the chart.
Link the chart.
Insert the chart as a picture.
This cannot be done.
Answer:
the awnser is B
Explanation:
Answer:
B, Link the chart.
Explanation:
1. Read the following scenario. What type of business letter do you think is required in this situation? (1 point)
Melissa and Melrose are both first-year students at a local community college. They both have interest in volunteering with a nonprofit organization. They decided to reach out to nonprofit organizations to ask about the steps they need to take in order to volunteer.
Answer:
It requires a formal letter.
Answer:
This would require a formal business letter, the type being a cover letter or inquiry.
Explanation: yes
Select three physical forms of storage. USB drive Primary cache Magnetic storage Secondary cache Dynamic RAM Optical drive
Answer:USB drive
Magnetic storage
Optical drive
Explanation:
hope this helps
Spreadsheet allow three types of cell addressing. They include ______addresses, such as $E$1, ______addresses, such as R$3, and ______addresses, such as D4.
Answer:
The answer is below
Explanation:
Based on the Microsoft Excel Formatting style, Spreadsheet allows three types of cell addressing. They include:
1. ABSOLUTE CELL ADDRESSING addresses, such as $E$1,
2. MIXED CELL ADDRESSING addresses, such as R$3, and
3. RELATIVE CELL ADDRESSING addresses, such as D4.
Write a program num2rome.cpp that converts a positive integer into the Roman number system. The Roman number system has digits I 1 V 5 X 10 L 50 C 100 D 500 M 1,000 Numbers are formed according to the following rules: a. Only numbers 1 to 3,999 (inclusive) are represented. b. As in the decimal system, the thousands, hundreds, tens, and ones are express separately. c. The numbers 1 to 9 are expressed as I 1 II 2 III 3 IV 4 V 5 VI 6 VII 7 VIII 8 IX 9 As
Answer:
Explanation:
#include <stdio.h>
int main(void)
{
int num, rem;
printf("Enter a number: ");
scanf("%d", &num);
printf("Roman numerals: ");
while(num != 0)
{
if (num >= 1000) // 1000 - m
{
printf("m");
num -= 1000;
}
else if (num >= 900) // 900 - cm
{
printf("cm");
num -= 900;
}
else if (num >= 500) // 500 - d
{
printf("d");
num -= 500;
}
else if (num >= 400) // 400 - cd
{
printf("cd");
num -= 400;
}
else if (num >= 100) // 100 - c
{
printf("c");
num -= 100;
}
else if (num >= 90) // 90 - xc
{
printf("xc");
num -= 90;
}
else if (num >= 50) // 50 - l
{
printf("l");
num -= 50;
}
else if (num >= 40) // 40 - xl
{
printf("xl");
num -= 40;
}
else if (num >= 10) // 10 - x
{
printf("x");
num -= 10;
}
else if (num >= 9) // 9 - ix
{
printf("ix");
num -= 9;
}
else if (num >= 5) // 5 - v
{
printf("v");
num -= 5;
}
else if (num >= 4) // 4 - iv
{
printf("iv");
num -= 4;
}
else if (num >= 1) // 1 - i
{
printf("i");
num -= 1;
}
}
return 0;
}
Helllllllllppppppppppp
Answer:
9
Explanation:
"++" at the beginning increases your "x" by 1 before using it.
if it placed after your variable, it will increase it after your program used it.
Which tab on the ribbon is used to access the global Access 2016 options?
Home
Create
Database Tools
File
Explanation:
the answer is Database Tools
Modify the statistics program from this chapter so that client programshave more flexibility in computing the mean and/ or standard deviation.Specifically, redesign the library to have the following functions:mean(nums) Returns the mean of numbers in nums.stdDev(nums) Returns the standard deviation of nums.meanStdDev (nums) Returns both the mean and standard deviation of nums.
Answer and Explanation:
Using Javascript:
function mean(nums){
var array_numbers= new array(nums);
var meanofNums= array_numbers.reduce()/array_numbers.length;
Console.log(meanofNums);
}
Function Std(nums){
var OurArray= new Array(nums);
var meanOfnums= mean(nums);
var i;
for(i=0; i<=OurArray.length; i++){
OurArray[i]= OurArray[i]-meanOfnums*OurArray[i]-meanOfnums;
}
var al_stdOfnums= OurArray.reduce()/OurArray.length;
var stdOfnums= Math. sqrt(al_stdOfnums);
Console.log(stdOfnums);
}
function meanStdDev (nums){
mean(nums);
Std(nums);
}
/*From the code above, we have defined functions and used them in the last function definition meanStdDev (nums), making for code reusability. In defining the functions, we have followed the formulas for calculating mean and standard deviations and implemented in that order. Notice how we used a for loop in std(nums) function definition to iterate through the elements of the array nums, squaring each value and reassigning a new value for each element(using index value) in the array. We then added these values in array using reduce method, dividing by array length and square rooting the value using the math object method sqrt().*/
A driver that approaches a controlled intersection with a signal that is not working must:
The HTML tag for the smallest heading is what
Answer:
The HTML <h1> to <h6> tag is used to define headings in an HTML document. <h1> defines largest heading and <h6> defines smallest heading.
Explanation:
You need to view the contents of /var/log/auth.log to get information about the users that have been logging on to the system. The auth.log file is a plain text, file so you decide to use the cat command to review the file. However, the display fills with text for several pages, and you can't see the entire file. What commands can you use to view the content of the auth.log file page by page? (Select TWO).
Answer:
more /var/log/auth.log
less /var/log/auth.log
Explanation:
The commands that can be used to view the content of the auth.log file page by page are:
more /var/log/auth.log
less /var/log/auth.log
what is the difference between b and br tag
Answer:
<b> tag is used to make the text bold. <br> tag is used to insert a line break into a text font.
Explanation:
The <b> tag in HTML is used to indicate the importance of the text. The text is written within <b> tag display in bold size. You can do that by using CSS also there is a similar tag <strong> tag that has a similar effect on content.
The <br> tag inserts a single line break. The <br> tag is useful for writing addresses or poems. The <br> tag is an empty tag which means that it has no end tag.
On SnapI blocked someone, unblocked them and I want to add them again but I forgot their username. Is there anything I can do? Does snap have a list of like my former friends or people I’ve blocked?
Answer:
There is no list of people you had blocked formerly, however you should have seen their username when unblocking them? That's the only way I can think to find their user. Maybe if you have a friend who knows their username, you can get it that way. Or if you remember just a bit of it or their first/last name, you can try searching that.
explain the tearms alink and vlink
Answer:
The alink (active link) color appears while the mouse is clicking the link. The vlink (visited link) is the color of the link after the user has already visited it.
Select the item that best represents technology transfer?
Newtonian telescope
Magnetic Compass
Printing Press
Answer:
Printing Press
Explanation:
Technology transfer is the simple process of sharing or dissemination of information from person to person (or from one organisation to another)
Therefore, the item that best represents technology transfer from the given answer choices is the printing press.
This is because, the printing press helped to print paper containing information which was sent from one location to another.
Audience centered public speakers are inherently sensitive to the
Answer:
the diversity of their audiences
Explanation:
The CPU is considered to be the............of a computer system
Answer:
The Central Processing Unit (CPU) is the brain or main source of the computer system.
The most likely reason a firm would decide to establish an extranet would be the desire to Multiple Choice speed the flow of information on its private network by increasing the bandwidth. make the information on its network widely available to the general public. share information and collaborate with a select group of outside organizations or individuals. overcome the speed and capacity limitations of its external connection to the Internet by gaining access to the very-high-speed Backbone Network Service.
Answer: share information and collaborate with a select group of outside organizations or individuals.
Explanation:
When a company uses an intranet, it is for the purpose of sharing information within the company so in the same vein, an extranet is done to share information with entities outside the company be it people or organizations.
For information to be shared, the other companies and organizations need to have the means and authorization to join the extranet. Extranets are very useful as they enable collaboration across vast distances thereby increasing productivity.
The most likely reason a firm would decide to establish an extranet is B. share information and collaborate with a select group of outside organizations or individuals.
An extranet simply means a controlled private network that allows customers, vendors, partners, suppliers, etc to gain information about a company.
Extranet is vital to share information and collaborate with a select group of outside organizations or individuals. It is usually a private part of a website.
Read related link on:
https://brainly.com/question/10156285
Which option is used to insert a table in PowerPoint from another Office application?
In the Insert Object dialog box, choose Create from file.
In the Design tab, choose the Table Styles option.
In the Insert Table dialog box, choose Insert Table.
In the Layout tab, choose the Merge option.
Answer: In the Insert Object dialog box, choose Create from file.
Explanation:
To insert a table into PowerPoint from another Office application, go to the Insert Tab. In the Text ribbon on the far right, you will see "Object" next to Equation.
After clicking on that, select the "Create from File" option. It will allow you to browse a file you want to import from. PowerPoint will import the data from this file.
How many characters should a strong password have? four six eight ten
Answer:
I say it have to be aleast 8 to complete a strong password
Explanation:
it's common sense
Answer:
8
Explanation:
The more the better but ten too much
Suppose you are given a sequence that is described by a formula, starting at index n=0. If you need to change the starting index to n=1, then you just need to replace n in the formula by n+...?
Answer:
[tex]n+1[/tex]
Explanation:
Given
[tex]n = 0[/tex] --- starting index
Required
Change the starting index to [tex]n = 1[/tex]
We have:
[tex]n = 0[/tex]
To change the starting index to k, we simply rewrite as:
[tex]n+k[/tex]
In this case; k=1; so, the starting index will be: [tex]n+1[/tex]
state 4 & circumstances under which warm
booting of a computer may be necessary
Answer:
to close an open application
10 ICTs that encourage reading...?
10 ICTs that encourage reading are given below:-
laptop / desktopprojectorphotocopierprinterIpadswebboardsinteractive white boardmicrophoneTablets Internet .Hope it is helpful to you
ou use productivity apps on your iPad tablet device while traveling between client sites. You're concerned that you may lose your iPad while on the road and want to protect the data stored on it from being compromised. Currently, your iPad uses a 4-digit PIN number for a passcode. You want to use a more complex alpha-numeric passcode. You also want all data on the device to be erased if the wrong passcode is entered more than 10 consecutive times. What should you do
Answer:
Enable the Erase data optionDisable the simple passcode optionExplanation:
Most smartphone security experts agree that one way to prevent unauthorized access to one's iPad is to enable the erase data feature. Enabling this feature is believed to allow the possibility of all data on the device to be erased if a wrong passcode is entered after a specified number of times.
Of course, it is also possible to set a complex alphanumeric passcode, however, you'll need to first disable the simple passcode option.
A specified group of banks get together and agree to use a blockchain for wholesale settlement of interbank transfers. This is most likely an example of a ........................ blockchain. Group of answer choices Permissionless Permissioned
Answer:
Permissioned
Explanation:
In this scenario, specified group of banks got together and joined forces by agreeing to use a blockchain for wholesale settlement of all interbank transfers. Thus, this is most likely an example of a permissioned blockchain.
Create a program that uses a separate module to calculate sales tax and total after tax.
Create a c++ program using console.h and console.cpp files that uses a separate module to calculate sales tax and total after tax.
Console
Sales Tax Calculator
ENTER ITEMS (ENTER 0 TO END)
Cost of item: 35.99
Cost of item: 27.50
Cost of item: 19.59
Cost of item: 0
Total: 83.08
Sales tax: 4.98
Total after tax: 88.06
Again? (y/n): y
ENTER ITEMS (ENTER 0 TO END)
Cost of item: 152.50
Cost of item: 59.80
Cost of item: 0
Total: 212.30
Sales tax: 12.74
Total after tax: 225.04
Again? (y/n): n
Answer:
I nor know this one oo abeg sorry
write chracteristics of all 5 generation of computer
Answer:
First generation — 1940–1956
-used vacuum tubes
ENIAC, UNIVAC I, IBM 650, IBM 701 etc.
mainframes taking up entire rooms
punched cards I/O
electrostatic and mercury delay line memory, beginning use of core
Second generation — 1956-1963
-used discrete transistors
IBM 7090 and 7094, UNIVAC 1107, PDP-1 and 8, etc.
first appearance of minicomputer (PDP-8)
punched cards I/O and line printers (mainframe), TTY (minicomputers)
core memory, magnetic tape for mass storage
Third generation — 1964-1971
-used integrated circuits
IBM System/360, UNIVAC 1108, PDP-8/I, PDP-11/20 and PDP-11/45, etc.
mostly same I/O and memory as second generation
Fourth generation — 1971-present
-use microprocessors
PDP-11/03 and PDP-11/34, Apple ][, IBM PC, Apple Macintosh, IBM z Series, etc.
transition from minicomputers to personal computers
video terminals used for I/O, specialty computer printers developed
fewer mainframes
semiconductor memory replaces core memory
hard drives and optical drives replace magnetic tape for mass storage, followed by solid-state drives (SSD)
Fifth generation — (current research)
-artificial intelligence and quantum computing
Answer:
The five generations of computer are characterized by electrical current flowing through the processing mechanisms listed below : The first within vacuum tubes The second within transistors The third within integrated circuits The fourth within microprocessors clips The fifth unveiled smart devices capable of artificial...
Explanation:
☆hope it is helpful to you ☆
☆MiraculousNisha^_^Which unit of computer is used to processed data?
Please help!!!!!!
[tex]Hello[/tex] [tex]There![/tex]
[tex]AnimeVines[/tex] [tex]is[/tex] [tex]here![/tex]
Is it Central Processing Unit?
[tex]HopeThisHelps!![/tex]
[tex]AnimeVines[/tex]
Answer:
Central Processing Unit (CPU)
Explanation:
The Central Processing Unit (aka CPU), is used to process the data.
BIOS has two jobs. One is to boot up, or start, the computer. What is the other? Maintain the computer’s software firewall. Ensure the fastest possible Internet speed. Provide the basic interface for the hardware. Perform regularly scheduled memory backups.
Answer:
Provide the basic interface for the hardware.
Explanation:
