The program keeps names and email addresses in a dictionary as key-value pairs, as written below.
What are codes?Codes are the language that is used to write programs.
f=open('email.dat','rb')
d=pickle.load(f)
f.close()
except:
d={}
while True:
print('\n1. Find a email address')
print('2. Add name and email address')
print('3. Change an email address')
print('4. Delete an email address')
print('5. Exit\n')
choice=input('\nEnter a choice: ')
if choice:
choice=int(choice)
else:
print('\nEnter a number')
continue
if choice == 1:
while True:
name=input('\nEnter the name ')
if name:
if name in d:
print('\n%s is the email id of %s \n' % (d[name],name))
break
else:
print('\n Email not found \n')
break
else:
print('\nName cannot be empty\n')
continue
elif choice==2:
while True:
name=input('\nEnter the name ')
if name:
break;
else:
print('\nName cannot be empty \n')
continue
while True:
email=input('\nEnter the email address ')
if email:
d[name]=email
break
else:
print('\nEmail cannot be empty\n')
continue
elif choice==3:
while True:
name=input('\nEnter the name to change the email address ')
if name:
if name in d:
email=input('\nEnter the new email address ')
d[name]=email
print('\nEmail address changed \n')
break;
else:
print('\nName not found \n')
break
else:
print('\nName cannot be empty \n')
continue
elif choice == 4:
while True:
name=input('\nEnter the name to remove ')
if name:
if name in d:
del d[name]
print('\nName and Email address removed \n ')
break;
else:
print('\nName not found \n')
break
else:
print('\nName cannot be empty\n')
continue
elif choice == 5:
f=open('email.dat','wb')
pickle.dump(d,f)
f.close()
sys.exit()
else:
print('\nEnter a valid choice ')
Therefore, the codes are written above.
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What are limitations of AI
Explanation:
Limitations of artificial intelligence. One of the main barriers to implementing AI is the availability of data. Data is often siloed or inconsistent and of poor quality, all of which presents challenges for businesses looking to create value from AI at scale.
Answer:
Risks and limitations of artificial intelligence in business
Businesses are increasingly looking for ways to put artificial intelligence (AI) technologies to work to improve their productivity, profitability and business results.
However, while there are many business benefits of artificial intelligence, there are also certain barriers and disadvantages to keep in mind.
Limitations of artificial intelligence
One of the main barriers to implementing AI is the availability of data. Data is often siloed or inconsistent and of poor quality, all of which presents challenges for businesses looking to create value from AI at scale. To overcome this, you should have a clear strategy from the outset for sourcing the data that your AI will require.
Another key roadblock to AI adoption is the skills shortage and the availability of technical staff with the experience and training necessary to effectively deploy and operate AI solutions. Research suggests experienced data scientists are in short supply as are other specialised data professionals skilled in machine learning, training good models, etc.
Cost is another key consideration with procuring AI technologies. Businesses that lack in-house skills or are unfamiliar with AI often have to outsource, which is where challenges of cost and maintenance come in. Due to their complex nature, smart technologies can be expensive and you can incur further costs for repair and ongoing maintenance. The computational cost for training data models etc can also be an additional expense.
Software programs need regular upgrading to adapt to the changing business environment and, in case of breakdown, present a risk of losing code or important data. Restoring this is often time-consuming and costly. However, this risk is no greater with AI than with other software development. Provided that the system is designed well and that those procuring AI understand their requirements and options, these risks can be mitigated.
See also Industry 4.0 challenges and risks.
Other AI limitations relate to:
implementation times, which may be lengthy depending on what you are trying to implement
integration challenges and lack of understanding of the state-of-the-art systems
usability and interoperability with other systems and platforms
If you're deciding whether to take on AI-driven technology, you should also consider:
customer privacy
potential lack of transparency
technological complexity
If you're considering writing a tender document to procure AI, you can seek help from the Northern Ireland Artificial Intelligence Collaborative Network(link is external).
AI and ethical concerns
With the rapid development of AI, a number of ethical issues have cropped up. These include:
the potential of automation technology to give rise to job losses
the need to redeploy or retrain employees to keep them in jobs
fair distribution of wealth created by machines
the effect of machine interaction on human behaviour and attention
the need to address algorithmic bias originating from human bias in the data
the security of AI systems (eg autonomous weapons) that can potentially cause damage
the need to mitigate against unintended consequences, as smart machines are thought to learn and develop independently
While you can't ignore these risks, it is worth keeping in mind that advances in AI can - for the most part - create better business and better lives for everyone. If implemented responsibly, artificial intelligence has immense and beneficial potential.
When testing for current in a cable with eleven color-coded wires, the author used a meter to test five wires at a time. how many different tests are required for every possible pairing of five wires?
Multiply 5 times 5, then times 11, and you'll get 275.
What is the features of Mark 1
Answer:
Okay:
Mark I was enourmous in size, measuring 8 feet high, 51 feet long and three feet deep. It weighed 5 tons, used 530 miles of wire and 730,000 separate parts. The operation of these parts was powered and synchronized by a long horizontal rotating shaft. A four horsepower engine drives the mechanical parts.
Harvard Mark I, an early protocomputer, built during World War II in the United States. While Vannevar Bush was working on analog computing at the Massachusetts Institute of Technology (MIT), across town Harvard University professor Howard Aiken was working with digital devices for calculation. He had begun to realize in hardware something like the 19th-century English inventor Charles Babbage’s Analytical Engine, which he had read about. Starting in 1937, Aiken laid out detailed plans for a series of four calculating machines of increasing sophistication, based on different technologies, from the largely mechanical Mark I to the electronic Mark IV.
Explanation:
hope it is helpful to you
Which of these is a biotic factor in a forest?
Will
O A. Climate
O O
O B. Terrain
O C. Trees
O D. Water
Answer: trees
Explanation:
______ greetings are used when we talk to friends or family members.
A)Formal
B)Informal
C)Gestures
D)None of these
Answer:
B. Informal
Explanation:
You know your parents, greet them normally
Answer:
Informal
Explanation:
Draw a truth table & logic circuit corresponding to the following logic statement
X = 1 if ( ( M is 1 OR N is 1 ) AND ( M is 1 AND N is 1 ) ) OR ( O is NOT 1 )
Answer:
The truth table, as well as the logic circuit of the given statement, is attached below.
Explanation:
Logical gates seem to be the essential building blocks of just about any computerized signal. It becomes a digital device with one or even more inputs and therefore only single output. The arrangement among outputs and inputs would be focused on this kind of logic. Upon that basis, logic gates were already called as AND, NOT, OR gate, etc.
Another problem related to indefinite postponement is called ________. This occurs when a waiting thread (letâ s call this thread1) cannot proceed because itâ s waiting (either directly or indirectly) for another thread (letâ s call this thread2) to proceed, while simultaneously thread2 cannot proceed because itâ s waiting (either directly or indirectly) for thread1 to proceed. The two threads are waiting for each other, so the actions that would enable each thread to continue execution can never occur.
Answer:
"Deadlock" is the right solution.
Explanation:
A deadlock seems to be a circumstance where certain (two) computer algorithms that share a similar resource essentially prohibit each other during manipulating the asset, leading to both programs withdrawing to operate.This occurs when multiple transfers or transactions block everyone by maintaining locks onto assets that every other activity also needs.So that the above is the correct answer.
How to Fix 0xc000007b
Answer:
Method 1. Restart your computer
The first thing to try is restarting Windows. It sounds too simple, but it sometimes yields results.
Method 2. Update .NET framework
In most cases it's Microsoft .NET framework causing the issues. You can download the latest version of .NET Framework from Microsoft.
When it's installed (or re-installed) reboot and try your app or game again
Method 3. Enable Administrator rights
Try running the game or app with admin rights. To do that, right-click on the shortcut or the actual executable for the game, select Properties and open the Compatibility tab. Tick the 'Run this program as an administrator' box, and click on OK.
Method 4. Reinstall the app or game
You can uninstall and re-installing the game or program you're trying to run - simple but sometimes the quickest and most effective way to get rid of the error.
Method 5. Update Windows
Update Windows. In many cases Windows will automatically update, but to check, head to Control Panel and search for 'Windows Update'.
In later versions, including Windows 10, you can open the new Settings app (just search the Start menu or click the cog icon which appears just above the Windows logo when you click it in the bottom-left of the screen.
In the Settings app, click on Update & Security then you should see a button to check for updates:
Explanation:
Method 6. Run ChkDsk
Run chkdsk by opening cmd (search for it or press Win+R).
In the window type "chkdsk c: /f /r". If it is the primary windows disk, it will ask you to schedule it for next boot. When you restart, it will do a check before get to the login screen. Partitions or other drives can also be checked this way.
Method 7. Reinstall DirectX
This can be the fix for games that won't load. The way to do this depends on your version of Windows and which version of DirectX you need. There are full instructions on Microsoft's website
Hope it's help you. :-)
For safety, the lights on your vehicle must be in good working condition. Which statement about
checking your lights is true?
A: You must check all your lights often, and promptly replace any burned out boys
B: You should check your lights every six months and replace any burned out bulbs.
C: On modern cars, the lights are so reliable that you almost never have to check them,
Answer:
The answer is B
Explanation:
What are the useful techniques in program design?
A broad question, with many answers.
When designing a program you can use:
Setting up requirements, possibly in a use-case form ("as a ... I want to ... so that ...")Mapping the verbs and nouns in your requirements to classes and operations Drawing UML diagrams of the subject matterCreating flow charts and sequence diagrams Identify component boundaries with thin interfaces to keep complexity organized and localWhat are examples of some Exotic currencies?
A) EURUSD, AUDUSD
B) GBPCHE, EURUSD
C) AUDCHF, NZDJPY
D) MXN, ZAR, HKD
Answer:
D) MXN, ZAR, HKD
Explanation:
Exotic currencies refer to currency that are used in countries with emerging economies therefore they lack liquidity, are extremely volatile and have very low volumes. The exchange rate of exotic currencies are usually very high because of its lack of liquidity, therefore trading these currencies are expensive. Examples of exotic currencies are South African rand (ZAR), Mexican peso (MXN), Hong Kong dollar (HKD), Chinese yuan (CYN), Turkish lira (TRY) and so on.
Mention 2 precautionary
measures to be observed
when using ICT tools
Answer:
ICT is the abbreviated form of Information and Communication. It included different technologies like mobile phones, computers, USBs etc.
Following are two precautionary measures which should be observed when using any kind of ICT:
Use of Antivirus: It can used to protect anything placed inside the technology especially from hacking and viruses which can create many issues.Backup Data: Creating a backup of the data stored in the device is important as it can be recalled when the device malfunctions. Backup of the data can be created through using USBs, CDs etc or through cloud storageWhat visual practice provides more information about logical relations when creating an ERD
Answer:
Logical Data Model
Explanation:
An Entity Relationship Diagram (ERD) is a model or a diagram designed to reveal the relationship between various entities such as people, places, objects, and so on within an institution. Entity relationship diagram is also known as Entity relationship model. This model is used to design relational database by various sectors such as education, engineering, business, etc.
ERD is designed using conceptual data model, logical data model, and physical data model.
The visual practice or model that gives more insight into the logical relations among the entity is the logical data model.
The logical data model is used to illustrate more detailed operational and relational data among the entities. It is more detailed than the conceptual data.
So, the correct answer is logical data model.
What does “int” means in php code
Answer:
integer
Explanation:
The database model that uses a series of two-dimensional tables or files to store information is the ________________ model. This database model has become the most popular database structure, as it is used by most microcomputer DBMS packages:
Answer:
The relational database model
Explanation:
The database model that uses a series of two-dimensional tables or files to store information is the relational structure model.
What is the relational structure model?The relational model (RM) is known to be set up for database management as it is a method used in managing data via the use of a structure and language that are in line with first-order predicate logic.
Note that The database model that uses a series of two-dimensional tables or files to store information is the relational structure model.
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Why are the social and ethical consequences of emerging technology hard to
predict?
Answer:
Technology is rapidly evolving over a short period of time. Which leads to a change in how people perceive and subsequently react to these fast paced advances.
Answer: try this one: It is impossible to see how technology will be applied to situations that have not yet occured.
Explanation: if it’s wrong please tell me