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cluponka [151]
3 years ago
5

Use the laws of propositional logic to prove the following:

Computers and Technology
1 answer:
frez [133]3 years ago
4 0

Answer:

I attached the answer in the picture

Explanation:

Logical True and Logical False

These are kinda strange operations. Logical true always results in True and logical false always results in False no matter the premise. These operations are often referred to as “always true” and “always false”.

Binary Operators

Binary operators require two propositions. We’ll use p and q as our sample propositions.

Negation

The negation operator is commonly represented by a tilde (~) or ¬ symbol. It negates, or switches, something’s truth value.

We can show this relationship in a truth table. A truth table is a way of organizing information to list out all possible scenarios.

AND

The AND operator (symbolically: ∧) also known as logical conjunction requires both p and q to be True for the result to be True. All other cases result in False. This is logically the same as the intersection of two sets in a Venn Diagram.

Implication

Logical implication (symbolically: p → q), also known as “if-then”, results True in all cases except the case T → F. Since this can be a little tricky to remember, it can be helpful to note that this is logically equivalent to ¬p ∨ q (read: not p or q)*.

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Answer:

accessibility

Explanation:

Della is a special education teacher. In her classroom, students may use many different types of utility programs to make it easier for them to use their computers. This category of utility software is known as accessibility.

6 0
3 years ago
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after a few weeks of using facial recognition login, your infrared camera fails, and you are asked to enter your pin. because it
riadik2000 [5.3K]

The reason that you have not been locked out after several failed PIN login attempts is that your laptop does not have a TPM chip, and you have not set up BitLocker for lockout.

Technology known as Trusted Platform Module (TPM) is made to offer hardware-based, security-related functionality. Designed to perform cryptographic operations, a TPM chip is a safe crypto-processor. Malicious software cannot interfere with the TPM's security capabilities, and the chip has numerous physical security features to prevent tampering. Utilizing TPM technology has a number of major benefits, including the following:

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  • Utilize the burnt-in RSA key of the TPM to authenticate platform devices using TPM technology.
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7 0
1 year ago
Wi-Fi is all around us. Is there any downside to its pervasiveness?
Mandarinka [93]

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  Wi-Fi(Wireless fidelity) is the networking technology that helps in providing the internet connectivity to the users. The Wi-Fi is all around the surrounding due to several Wi-Fi connections the users demand and use. It creates the networking environment where internet access becomes easy.

There are drawback to Wi-Fi service range that covers a large area is the high number of users.The addition of many users slow down the data rate and accessing .The radiation from this service is also a negative side of the Wi-Fi pervasiveness.

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3 years ago
Which are the best examples of how technology can be used in contemporary entrepreneurship?
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Answer:A

Explanation:

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3 years ago
Match the appropriate words to complete the paragraph.Wireless networks have no clear boundaries, therefore securing communicati
lawyer [7]

Answer:

a. Encryption.

b. Authentication.

c. Strong.

d. Rogue.

e. Insecure.

f. Hacking.

Explanation:

In Computer technology, authentication can be defined as the process of verifying the identity of an individual or electronic device. Authentication work based on the principle (framework) of matching an incoming request from a user or electronic device to a set of uniquely defined credentials.

Basically, authentication ensures a user is truly who he or she claims to be, as well as confirm that an electronic device is valid through the process of verification.

Encryption is a form of cryptography and typically involves the process of converting or encoding informations in plaintext into a code, known as a ciphertext. Once, an information or data has been encrypted it can only be accessed and deciphered by an authorized user.

Some examples of encryption algorithms are 3DES, AES, RC4, RC5, and RSA.

Wireless networks have no clear boundaries, therefore securing communications requires strong encryption, authentication, and strong protocols. One of the most common wireless security threats is the presence of rogue access points (APs). Rogue points can be set up for the benign purpose of free wireless access or for malicious purposes, such as gaining access to confidential data. Using an insecure wireless hotspot, like so many found in public settings, leaves you vulnerable to become the victim of hacking.

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