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Novay_Z [31]
2 years ago
13

What was Ada Lovelace's contribution to computer science?

Computers and Technology
2 answers:
Alika [10]2 years ago
8 0

Answer:

She made the first computer.

Explanation:

Augusta Ada King, Countess of Lovelace (née Byron; 10 December 1815 – 27 November 1852) was an English mathematician and writer, chiefly known for her work on Charles Babbage 's proposed mechanical general-purpose computer, the Analytical Engine.

Yanka [14]2 years ago
7 0

Answer:

She made the first ever computer.

Explanation:

The computer was called the Analytical Engine.

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Determine whether or not the following pairs of predicates are unifiable. If they are, give the most-general unifier and show th
Evgen [1.6K]

Answer:

a) P(B,A,B), P(x,y,z)

=> P(B,A,B) , P(B,A,B}  

Hence, most general unifier = {x/B , y/A , z/B }.

b. P(x,x), Q(A,A)  

No mgu exists for this expression as any substitution will not make P(x,x), Q(A, A) equal as one function is of P and the other is of Q.

c. Older(Father(y),y), Older(Father(x),John)

Thus , mgu ={ y/x , x/John }.

d) Q(G(y,z),G(z,y)), Q(G(x,x),G(A,B))

=> Q(G(x,x),G(x,x)), Q(G(x,x),G(A,B))  

This is not unifiable as x cannot be bound for both A and B.

e) P(f(x), x, g(x)), P(f(y), A, z)    

=> P(f(A), A, g(A)), P(f(A), A, g(A))  

Thus , mgu = {x/y, z/y , y/A }.

Explanation:  

Unification: Any substitution that makes two expressions equal is called a unifier.  

a) P(B,A,B), P(x,y,z)  

Use { x/B}  

=> P(B,A,B) , P(B,y,z)  

Now use {y/A}  

=> P(B,A,B) , P(B,A,z)  

Now, use {z/B}  

=> P(B,A,B) , P(B,A,B}  

Hence, most general unifier = {x/B , y/A , z/B }  

b. P(x,x), Q(A,A)  

No mgu exists for this expression as any substitution will not make P(x,x), Q(A, A) equal as one function is of P and the other is of Q  

c. Older(Father(y),y), Older(Father(x),John)  

Use {y/x}  

=> Older(Father(x),x), Older(Father(x),John)  

Now use { x/John }  

=> Older(Father(John), John), Older(Father(John), John)  

Thus , mgu ={ y/x , x/John }  

d) Q(G(y,z),G(z,y)), Q(G(x,x),G(A,B))  

Use { y/x }  

=> Q(G(x,z),G(z,x)), Q(G(x,x),G(A,B))

Use {z/x}  

=> Q(G(x,x),G(x,x)), Q(G(x,x),G(A,B))  

This is not unifiable as x cannot be bound for both A and B  

e) P(f(x), x, g(x)), P(f(y), A, z)  

Use {x/y}  

=> P(f(y), y, g(y)), P(f(y), A, z)  

Now use {z/g(y)}  

P(f(y), y, g(y)), P(f(y), A, g(y))  

Now use {y/A}  

=> P(f(A), A, g(A)), P(f(A), A, g(A))  

Thus , mgu = {x/y, z/y , y/A }.

7 0
3 years ago
What is the primary responsibility of the physical layer in data communication?
melamori03 [73]
 It is responsible for transmitting these bits as signals over a wire, optical fiber, wireless, or other <span>medium.</span>
3 0
3 years ago
How do I turn on your asus chromebook flip?
galben [10]
I believe the charger has to be connected for it to turn on.
3 0
3 years ago
Pls answer asap do not use internet
kozerog [31]

Answer:

key differences between linux and windows operating system linux is free and open resource whereas windows is a commercial operating system whose source code is inaccessible windows is not customizable as against linux is customizable and a user can modify the code and can change it looks and feels

Explanation:

I hope this helps

5 0
3 years ago
How do i install windows 7 on virtual machine?​
liberstina [14]

Choose Start→All Programs→Windows Virtual PC and then select Virtual Machines. Double click the new machine. Your new virtual machine will open onto your desktop. Once it's open, you can install any operating system you want.

3 0
3 years ago
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