What does "ls -Rl | egrep "^d" | wc -l" do?
Answers
The command "ls -Rl | egrep "^d" | wc -l" lists all the directories recursively in the current directory and counts the number of directories using the "wc" command.
Here is a breakdown of the individual parts of the command:
- "ls -Rl" lists all files and directories in the current directory and all subdirectories recursively.
- "| egrep "^d"" pipes the output to the "egrep" command, which searches for lines that begin with the letter "d", indicating a directory.
- "| wc -l" pipes the output of the "egrep" command to the "wc" command, which counts the number of lines (i.e. the number of directories) and returns that number.
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Related Questions
a good strategy for using social networking to find a job, according to the textbook, includes all of the following except
Answers
A good strategy for using social networking to find a job, according to the textbook, includes all of the following except have a good standard cover letter to send to each employer. You don't need to have a good standard cover letter to apply a job, because the most important thing from apply a job is about your skill and your manner.
With social networking, it can help us to find a job more easy. The way to buid a social networking can be done by make a good relationship with your colleagues, attrack them with your skill, show your ability. Social networking can also be done by linkedin. In the linkedin you can find the employer in the relate field and you can connect your linkedin account with them.
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Consider the steps for debugging. The last step is to
A. change the code to fix the bug
B. know what the code should do
C. run the code to see where the error is
D. run the code again to check if the bug is fixed
Answers
The last step in the process of debugging is to ". run the code again to check if the bug is fixed" (Opton D)
Why is Debugging Important?Debugging tools and tactics aid in the resolution of problems and increase developer productivity. As a result, both the quality of the program and the end-user experience increase.
Testing and debugging are critical processes in the creation and maintenance of software. Testing is used to determine whether or not the code includes mistakes, whereas debugging is used to discover and correct these flaws.
So it is correct to state that the final step in the debugging pricess is to test the code again. (Option D)
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Answer: ♡ hope this helps ♡
the answer is c
speed(?)
penup?
? (-200, -200)
? (90)
Pendown?
begin_fill?
? ("tan")
#Trace the outside of the grid (shape is a square)
? (400)
right(?)
? (400)
right(?)
? (400)
right(?)
? (400)
right(?)
end_fill?
? Go to lower, left corner of R and have turtle look up. Pen and shape fill blue
?()
set position(?)
?()
? ("blue")
begin_fill?
? Trace the outside of the letter R.
forward(?)
? (90)
? (160)
right(?)
forward(?)
? (90)
? (20)
? (100)
? (120)
right(?)
? (40)
right(?)
? (120)
? (80)
forward(?)
left(?)
? (120)
? (90)
? (40)
right(?)
end fill ()
? Move to inside of R (lower left corner). Color tan and fill the shape.
penup?
? (-40,20)
?()
color ("?")
begin_fill?
? Trace the inside of R (shape is a square).
forward(?)
? (90)
? (80)
right(?)
forward(?)
? (90)
? (80)
right(?)
end_fill?
? Go to lower, left corner of R. Make pen white and pensize 8.
?()
? (-80, -140)
? ("white")
pensize(?)
?()
? Trace outside of the letter R.
forward(?)
? (90)
? (160)
right(?)
forward(?)
? (90)
? (20)
? (100)
? (120)
right(?)
? (40)
right(?)
? (120)
? (80)
forward(?)
left(?)
? (120)
? (90)
? (40)
right(?)
? Move to inside of R (lower left corner).
penup?
? (-40,20)
?()
? Trace the inside of R (shape is a square).
forward(?)
? (90)
? (80)
right(?)
forward(?)
? (90)
? (80)
right(?)
Answers
Answer:
used HP UC visit relationship Nurs.Makrapar.
Which type of input devices used in big hero 6 movie
Answers
The Input Devices Used in Movie Big Hero are:
A joystick medical robot Armored exoskeleton Jet-boots.What are input device?This is known to be a is a piece of instrument that helps gives or provide data to any information processing system.
Note that the Input Devices Used in Movie Big Hero “6” are a medical robot made by by Tadashi Hamada., Armored exoskeleton and others.
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scanner data where panel members are identified by an id card allowing each panel member's purchases to be stored with respect to the individual shopper are referred to as
Answers
Scanner data, where panel members are identified by an ID card and their purchases are tracked, is referred to as "Individual Shopper Data".
This type of data is collected by scanning the barcodes of the items purchased by a panel member, and linking this information to their individual ID card. This allows for a detailed analysis of each panel member's purchasing behavior, including the types of products they purchase, how often they purchase them, and the amount they spend. The data collected can be used by manufacturers, retailers, and market research firms to understand consumer behavior and make informed decisions about product development, marketing strategies, and inventory management. The data is also useful for monitoring the effectiveness of promotions, pricing strategies, and other marketing activities. The individual shopper data provides a rich and detailed understanding of consumer behavior and can help companies improve their offerings and increase sales.To know more about data visit:
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Geraldo would like to compare two areas of text, Text1 and Text2, to each other. What steps should he take?
od
select Text1, hit F1, click. "Compare to another selection," select Text2
select Text1, hold Shift+F1, click "Compare to another selection," select Text2
hold Shift+F1, select Text1, hold Shift+F1 again, select Text2
Ohit F1, select Text1, hit F1 again, select Text2
Answers
Assume there are two variables, k and m, each already associated with a positive integer value and further assume that k's value is smaller than m's. Write the code necessary to compute the number of perfect squares between k and m. (A perfect square is an integer like 9, 16, 25, 36 that is equal to the square of another integer (in this case 3*3, 4*4, 5*5, 6*6 respectively).) Associate the number you compute with the variable q. For example, if k and m had the values 10 and 40 respectively, you would assign 3 to q because between 10 and 40 there are these perfect squares: 16, 25, and 36,.
PYTHON CODING
Answers
Answer:
import math
def isPerfectSquare(n):
s = int(math.sqrt(n))
return n == s*s
def countPerfectSquares(k,m):
q = 0
for i in range(k,m):
if isPerfectSquare(i):
q=q+1
return q
print(countPerfectSquares(10,40))
Explanation:
Note that this is including the k, but excluding m. If you want to include m, write m+1 in the range expression.
Can someone explain this question & answer to me?
var list = [11, 35, 6, 0];
var sum = 0;
for (var i = 0; i < list.length; i++) {
sum = sum + list[i];
}
sum = sum/list.length;
console.log(sum);
Answers
The sum is then divided by the length of the list to get a percentage.
The code will iterate through the list of numbers and add them up.
The sum variable is then divided by the number of items in the list to determine the average value.
6.25 lab: even/odd values in a vector write a program that reads a list of integers, and outputs whether the list contains all even numbers, odd numbers, or neither. the input begins with an integer indicating the number of integers that follow. ex: if the input is:
Answers
def is_list_even(my_list):
for i in my_list:
if(i%2 != 0):
return False
return True
def is_list_odd(my_list):
for i in my_list:
if(i%2 == 0):
return False
return True
def main():
n = int(input())
lst = []
for i in range(n):
lst.append(int(input()))
if(is_list_even(lst)):
print('all even')
elif(is_list_odd(lst)):
print('all odd')
else:
print('not even or odd')
if __name__ == '__main__':
main()
Write down a scratch program which:
performs the following tasks 5 times:
1. asks the user to input numbers
2. add the numbers in total variable
3. outputs the result
Answers
Which of the following are advantages of a local area network, as opposed to a wide area network? Select 3 options. Responses higher speeds higher speeds provides access to more networks provides access to more networks lower cost lower cost greater geographic reach greater geographic reach more secure more secure
Answers
The advantages of a local area network (LAN) over a wide area network (WAN) include higher speeds, lower cost, and greater security.
Advantages of a local area network (LAN) over a wide area network (WAN) can be summarized as follows:
Higher speeds: LANs typically offer faster data transfer rates compared to WANs. Since LANs cover a smaller geographical area, they can utilize high-speed technologies like Ethernet, resulting in quicker communication between devices.Lower cost: LAN infrastructure is generally less expensive to set up and maintain compared to WANs. LANs require fewer networking devices and cables, and the equipment used is often more affordable. Additionally, WANs involve costs associated with long-distance communication lines and leased connections.More secure: LANs tend to provide a higher level of security compared to WANs. Since LANs are confined to a limited area, it is easier to implement security measures such as firewalls, access controls, and encryption protocols to protect the network from unauthorized access and external threats.To summarize, the advantages of a LAN over a WAN are higher speeds, lower cost, and enhanced security.
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the front-end of an application is known as the application logic
Answers
Entities that do not store user data but need to access user data are called Application Front-Ends (FE). These Front-Ends implement the application logic for handling and operating on the user data, but they do not permanently store any user data. Examples of Front-Ends are the HSS, ANDSF, and PCRF.
ANSWER:
Incorrect
EXPLANATION:
The front-end of an application is what you see and interact with, like the buttons, text, and images you click on or type into. The application logic is the behind-the-scenes part that does the work, like storing your information or doing calculations based on what you entered. Think of the front-end as the part you can touch and see, and the application logic as the invisible part that makes everything happen.
Which of the following is a true statement about milestones?
O A. Meeting milestones contribute to the meeting of a key deliverable.
O B. Milestones are the high level events or actions in a schedule.
O C. Milestones are a helpful but not essential part of a schedule.
O D. Most milestones concern the delivery of a product.
Answers
Answer:
B option
Explanation:
my stones are the high level events are actions in a schedule.
What term is used to describe how mobile computing allows individuals to initiate real-time contact with other systems anywhere, any time since they carry their mobile device everywhere?.
Answers
Broad reach term is used to describe how mobile computing allows individuals to initiate real-time contact with other systems anywhere, any time since they carry their mobile device everywhere.
What exactly does mobile computing communication entail?
A form of communication known as mobile communications does not require a direct physical link between the sender and the recipient. During conversation, it makes it easier for users to travel from one physical location to another.Most popular forms of technology for communication-
GSM stands for Global Systems for Mobile Communications.Orthogonal Frequency Division Multiplexing (OFDM) is a technique used in the Long Term Evolution (LTE), Code Division Multiple Access (CDMA), and Universal Mobile Telecommunication System (UMTS) systems.Learn more about mobile communications
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"error messages generated by commands are sent where by default
a.STDERR
b.STDIN
c.Log files
d.STDOUT"
Answers
Error messages generated by commands are typically sent to STDERR by default.
To which standard communication channel are error messages generated by commands typically sent by default?When executing commands or programs, there are three standard communication channels: STDIN (standard input), STDOUT (standard output), and STDERR (standard error). STDOUT is the default channel used for normal program output, while STDERR is specifically designated for error messages and diagnostic information.
By default, error messages generated by commands are sent to STDERR. This separation of error messages allows for better handling and differentiation of normal output and error-related information. It enables users to easily identify and capture error messages separately from regular program output, making it easier to diagnose and troubleshoot issues.
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which of the following protocols scales better within a cisco autonomous system?
Answers
In a Cisco autonomous system, the Interior Gateway Protocol (IGP) that scales better is the Open Shortest Path First (OSPF) protocol. OSPF is one of the most commonly used IGP protocols in large networks.
OSPF uses a link-state routing algorithm, which allows for fast convergence and provides loop-free network routing. OSPF also scales well because it can divide networks into smaller areas, which helps reduce the amount of routing information that needs to be exchanged within the network. OSPF scales better within a Cisco autonomous system because it can handle a large number of routers and networks.
OSPF is also highly flexible, as it can be configured to support multiple paths to a destination. This provides redundancy and increases network availability. OSPF is also capable of load balancing traffic over multiple paths to a destination. It can use a variety of metrics to determine the best path, including bandwidth, delay, cost, and others. OSPF is also highly configurable, as it can be tuned to optimize network performance.
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We are given a string S of length N consisting only of letters ' A ' and/or 'B'. Our goal is to obtain a string in the format "A...AB...B" (all letters 'A' occur before all letters 'B') by deleting some letters from S. In particular, strings consisting only of letters ' A ' or only of letters ' B ' fit this format. Write a function: def solution(S) that, given a string S, returns the minimum number of letters that need to be deleted from S in order to obtain a string in the above format. Examples: 1. Given S= "BAAABAB", the function should return 2. We can obtain "AAABB" by deleting the first occurrence of 'B' and the last occurrence of 'A'. 2. Given S= "BBABAA", the function should return 3. We can delete all occurrences of 'A' or all occurrences of ' B '. 3. Given S = "AABBBB", the function should return 0. We do not hava th dolate anu lattore hanarica tha riven ctrinn is alrapdy in tha
Answers
Given a string S of length N consisting only of letters 'A' and/or 'B' and the goal is to obtain a string in the format "A...AB...B" (all letters 'A' occur before all letters 'B') by deleting some letters from S. In this regard, we have to write a function def solution(S) that, given a string S, returns the minimum number of letters that need to be deleted from S in order to obtain a string in the above format. In other words, given a string S, the function should delete as many characters as needed to get the string into the format of all As followed by all Bs.For example:If S= "BAAABAB", the function should return
2. We can obtain "AAABB" by deleting the first occurrence of 'B' and the last occurrence of 'A'.If S= "BBABAA", the function should return
3. We can delete all occurrences of 'A' or all occurrences of 'B'.If S = "AABBBB", the function should return 0. We do not have to delete any letters since the given string is already in the desired format. In other words, if the string has only one type of letter (either 'A' or 'B'), we don't need to delete anything because it already satisfies the given condition.
To write a function that solves this problem, we can use the following algorithm:If the string has only one type of letter, return 0.If the string starts with 'B' or ends with 'A', remove all occurrences of the letter that appears first (i.e., 'B' or 'A', respectively).Otherwise, count the number of 'B's between the first 'A' and the last 'A'. Return this count because it represents the number of letters that need to be deleted from the string to get it into the desired format.
The code for this function can be written as follows:def solution(S): if S.count('A') == len(S) or S.count('B') == len(S): return 0 elif S[0] == 'B': S = S.replace('B', '', 1) elif S[-1] == 'A': S = S.replace('A', '', 1) else: first_A = S.index('A') last_A = S.rindex('A') S = S[first_A:last_A+1] return S.count('B')
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James wants to buy a pair of pants for $60.
When he went to the store he found that the
price was marked down by 20%. How much do
they cost now?
Answers
MARIE includes 4096 bytes of memory. If Marie memory is divided in four memory banks, how much is each memory bank? O 2K Bytes O 1K Bytes 4K Bytes Question 31 (X+Y)Z+W+ 1 results in 1 as the output. O True O False
Answers
Marie includes 4096 bytes of memory. If Marie memory is divided into four memory banks, The amount of memory in each memory bank is determined by dividing the total amount of memory by the number of memory banks.
As a result, each memory bank of 4096 bytes memory will have a size of 4096/4 = 1024 bytes.So, the answer to your question is 1K Bytes.Each memory bank will have a capacity of 1K Bytes.Note: (X + Y) Z + W + 1 results in 1 as the output has a False output. The given equation can be written as:XZ + YZ + W + 1 = 1XZ + YZ + W = 0The expression on the left-hand side of the equation cannot be equal to zero. So, the output is false.
Based on the given content, MARIE includes 4096 bytes of memory. If this memory is divided into four memory banks, each memory bank would have 4096 divided by 4, which is equal to 1024 bytes or 1K byte.
As for the second part, it seems to be a multiple-choice question with the expression (X+Y)Z+W+1 resulting in 1 as the output. Without further context or values assigned to the variables, it is not possible to determine whether the statement is true or false.
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Why is cyber security an important part of sending information using digital signals
Answers
Cyber security is an important part of sending information using digital signals. Because it keeps data safe while stored in the cloud and when they are transmitted. Option D is correct.
What are cybersecurity functions?Analysts in cybersecurity defend an organization's hardware and network infrastructure against hackers and cybercriminals looking to harm them or steal confidential data.
When conveying information via digital signals, cyber security is a crucial component. because it protects data as it is sent and stored in the cloud.
Hence, option D is correct.
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Whales thrive in the benthic zone because it is full of plankton.
Is it true or false
Answers
Answer:
true
Explanation:
False. I answered true on the quiz and got it wrong.
1. Optimization and Compilers There are at least 4 optimizations that can be made in optimizeMe (). Find four optimization and for each: a. do it, b. tell whether the compiler or programmer should mak
Answers
In the context of the function `optimizeMe()`, there are at least four optimizations that can be made. Each optimization can be categorized as either the responsibility of the compiler or the programmer.
1. Loop Unrolling: Loop unrolling is an optimization technique where the loop iterations are manually expanded, reducing the overhead of loop control instructions. The programmer can manually unroll the loop by duplicating the loop body multiple times. This can improve performance by reducing loop overhead and increasing instruction-level parallelism.
2. Constant Folding: Constant folding is an optimization performed by the compiler. It involves evaluating constant expressions at compile-time instead of runtime. The compiler can analyze the code and identify expressions that involve only constants. By evaluating these expressions during compilation, the compiler can eliminate the runtime computation, resulting in faster execution.
3. Inline Function Expansion: Inlining is an optimization technique where a function call is replaced with the actual function code. The compiler can analyze the function's usage and determine if inlining would result in performance improvements. By avoiding the overhead of function call and return, inlining can lead to faster execution. This optimization is typically performed by the compiler based on its analysis.
4. Common Subexpression Elimination: Common subexpression elimination is an optimization technique that aims to eliminate redundant computations. The compiler can analyze the code and identify expressions that are computed multiple times within a loop or program. By storing the result of the expression in a temporary variable and reusing it, the redundant computations can be eliminated, reducing the overall execution time. This optimization is primarily the responsibility of the compiler.
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ANSWER:POST-TEST
direction encircle the letter of the correct answer..
1 .the written description accompanying the working drawing
2. a board made of plaster with covering of paper
3.a fire protection device that discharge water when the effect of a fire have been detected, such as when a predetermined temperature has been reached.
4.structural members in building construction that holds the ceiling board
5.the position or placement of lightning fixtures of the house.
with answer na din.
1.C
2.D
3.B
4.A
5.D
SANA MAKATULONG★☆☆
TLE
Answers
Answer:
1. Specifications.
2. Gypsum board.
3. Sprinkler systems.
4. Ceiling joist.
5. Lighting fixtures.
Explanation:
In Engineering, it is a standard and common practice to use drawings and models in the design and development of buildings, tools or systems that are being used for proffering solutions to specific problems in different fields such as banks, medicine, telecommunications and industries.
Hence, an architect or design engineer make use of drawings such as pictorial drawings, sketches, or architectural (technical) drawing to communicate ideas about a plan (design) to others, record and retain informations (ideas) so that they're not forgotten and analyze how different components of a plan (design) work together.
Architectural drawing is mainly implemented with computer-aided design (CAD) software and it's typically used in plans and blueprints that illustrates how to construct a building or an object.
1. Specifications: it's a well-written description that accompanies a working drawing used for designs and constructions.
2. Gypsum board: also referred to as drywall due to its inherent ability to resist fire. It's a type of board that's typically made of plaster with some covering of paper and it's used for ceilings, walls, etc.
3. Sprinkler systems: it's an automatic fire protection device that is typically designed to discharge a volume of water as soon as the effect of a fire is detected. For instance, when a predetermined or set temperature has been reached such as 69°C
4. Ceiling joist: structural members that are aligned or arranged horizontally in building construction in order to hold the ceiling board together.
5. Lighting fixtures: it's typically the position or placement of lightning fixtures of the house.
A customer database is an organised collection of comprehensive information about individual customers or prospects that is current, accessible, and actionable, for such marketing purposes as lead generation, lead qualification, sale of a product or service, or maintenance of customer relationships. With regard to the above information, critically discuss the importance of customer databases in relation to the marketing function (10)
Explain the importance of customer relationship management in marketing (10
Answers
Customer databases play a crucial role in the marketing function as they provide businesses with organized and comprehensive information about individual customers or prospects.
They enable effective lead generation, lead qualification, sales, and customer relationship management. Customer relationship management (CRM) further enhances marketing efforts by focusing on building and maintaining strong relationships with customers, which leads to increased customer loyalty, satisfaction, and ultimately, business growth. Customer databases are essential for effective marketing as they allow businesses to gather, organize, and analyze valuable customer information. By maintaining accurate and up-to-date customer data, businesses can segment their customer base, identify target markets, and tailor marketing campaigns to specific customer segments. This helps in maximizing the return on investment by delivering personalized messages and offers that resonate with customers' needs and preferences. Customer relationship management (CRM) complements the marketing function by emphasizing the importance of building and nurturing relationships with customers. CRM systems enable businesses to track and manage interactions with customers across various touchpoints. By understanding customer behavior, preferences, and purchase history, businesses can provide personalized experiences, address customer concerns, and proactively anticipate their needs. This leads to improved customer satisfaction, loyalty, and advocacy.
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tres areas donde se aplica la ciencia y tecnologia
Answers
Possible Answers:
- Medicemanto - Medicine, especially applied.
- Ingeniería - Engineering. Modern scientific engineering is making use of technology to help solve problems and understand cause and effects.
- Comunicación - Communication. Public broadcasting to raise awareness of environmental or other scientific concerns.
AP CSP
The cost of a customer’s electricity bill is based on the number of units of electricity the customer uses.
For the first 25 units of electricity, the cost is $5 per unit.
For units of electricity after the first 25, the cost is $7 per unit.
Which of the following code segments correctly sets the value of the variable cost to the cost, in dollars, of using numUnits units of electricity?
Answers
The code segment that correctly sets the value of the variable cost to the cost, in dollars, of using numUnits units of electricity is as follows:
IF numUnits ≤ 25
Cost ← numUnits × 5.
ELSE
Cost ← 25 × 7 (numUnits -25) × 5.
Thus, the correct option for this question is D.
What is a Code segment?A code segment may be defined as one of the parts or divisions of a program in an object file or in memory, which contains executable instructions in order to reveal some set of information in output form.
According to the context of this question, the IF and ELSE function is used in the program where IF is used when the electricity unit of a user comes to 25 or below, while ELSE is used when a user consumes more than 25 unit of electricity.
Therefore, the correct option for this question is D.
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the pathway through which an electric signal moved between devices is known as what?
Answers
what value is assigned to xval by the following code? xmatsym = sym('x', [4, 5]); xval = xmatsym(3, 3);
Answers
The given code snippet is using the symbolic computation library SymPy in Python. It assigns a symbolic variable 'x' to a 4x5 matrix called xmatsym and then retrieves the value at position (3, 3) from that matrix and assigns it to the variable xval.
Let's break down the code step by step:
xmatsym = sym('x', [4, 5]): This line creates a symbolic variable 'x' and assigns it to a 4x5 matrix using the sym() function from SymPy. The matrix is stored in the variable xmatsym. Each element of the matrix is a symbolic variable 'x' with subscripts denoting its position.
xval = xmatsym(3, 3): This line retrieves the value at position (3, 3) from the xmatsym matrix and assigns it to the variable xval. In SymPy, to access the value at a particular position in a matrix, you can use the matrix as a function, passing the row and column indices as arguments.
Since the code snippet assigns 'x' as a symbolic variable to the matrix and does not provide any specific values, the value of xval will remain a symbolic variable 'x' itself. It represents the variable at the position (3, 3) in the symbolic matrix xmatsym. The value is not evaluated or substituted with any specific numeric value.
So, the value assigned to xval is 'x'.
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software that combines text static images ,video animation and sounds is known as?
Answers
Answer: Interactive media
Explanation:
Interactive media, also called interactive multimedia, any computer-delivered electronic system that allows the user to control, combine, and manipulate different types of media, such as text, sound, video, computer graphics, and animation.
Hope This Helps!
Write the contribution of Charles Babbage in the history of computer.
Answers
Answer:
The main contributions of Charles Babbage are;
1 ) He invented difference engine and analytical engine.
2) He gave basic concept of of mathematics in his analytical engine.
3) He also keep the concept of using binary digits in his machine.
4) He had led to the the foundation of modern computer in his analytical engine including the concept of of input, processing and output
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