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lina2011 [118]
3 years ago
5

What is block chain?

Computers and Technology
2 answers:
LuckyWell [14K]3 years ago
6 0

Answer:

Block Chain is a system of recording information that makes it difficult or impossible to change, hack, or cheat the system.

A blockchain is essentially a digital ledger of transactions that is duplicated and distributed across the entire network of computer systems on the blockchain.

Hope this helps.

x

dalvyx [7]3 years ago
4 0
Blockchain is a distributed database existing on multiple computers at the same time. It is constantly growing as new sets of recordings, or ‘blocks’, are added to it. Each block contains a timestamp and a link to the previous block, so they actually form a chain. The database is not managed by any particular body; instead, everyone in the network gets a copy of the whole database. Old blocks are preserved forever and new blocks are added to the ledger irreversibly, making it impossible to manipulate by faking documents, transactions, and other information. All blocks are encrypted in a special way, so everyone can have access to all the information but only a user who owns a special cryptographic key is able to add a new record to a particular chain.
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tiny-mole [99]

Four of the basic I/O interface standard are PCI, SCSI, USB and ISA.

<h3>Standard I/O Interface</h3>

Input-Output Interface is used as an method which helps in transferring of information between the internal storage devices. A number of standards have been developed for I/O Interface.

There widely used bus standards are:

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Find out more on Standard I/O Interface at: brainly.com/question/24347579

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3 years ago
Overheating of a computer can be easily prevented. Explain how​
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•] Remove all the things that are blocking air to pass to let it cool down.

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3 years ago
How does Google work, why does it work that way?
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Answer:

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8 0
3 years ago
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Write a program that performs a simulation to estimate the probability of rolling five of a kind in a single toss of five six-si
VikaD [51]

Answer:

import random

def probability_five_of_a_kind(num_trials):

   sums = 0

   for _ in range(num_trials):

       roll_1 = random.randrange(1,6, 1)

       roll_2 = random.randrange(1,6, 1)

       roll_3 = random.randrange(1,6, 1)

       roll_4 = random.randrange(1,6, 1)

       roll_5 = random.randrange(1,6, 1)

       collection = roll_1 + roll_2 + roll_3 + roll_4 + roll_5

       if collection == 5:

           sums += 1

   prob = round(sums/7776, 8)

   print(f"The probability_five_of_a_kind is {prob}")

   

probability_five_of_a_kind(100)

probability_five_of_a_kind(10000)

probability_five_of_a_kind(1000000)

Explanation:

The random package of the python language is used to select an integer value from the range of one to six representing the sides of a die. All six rolls are randomized and the sum. If the sum is equal to 5, the sums counter is incremented. At the end of the loop, the sum is divided by the five dices events (which is 6^5 = 7776).

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8_murik_8 [283]

Answer: A. Record Macro dialog box.

Explanation:

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4 years ago
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