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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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Please list of 15 safety rules that you think should be practiced in the Computer Technology classroom/lab.
geniusboy [140]

Answer:

BE RESPECTFUL! Always treat the computer lab equipment AND your teacher and classmates the way that you would want your belongings and yourself to be treated.

No food or drinks near the computers. NO EXCEPTIONS.

Enter the computer lab quietly and work quietly. There are other groups and individuals who may be using the computer lab. Please be respectful.

Surf safely! Only visit assigned websites. Some web links can contain viruses or malware. Others may contain inapropriate content. If you are not certain that a website is SAFE, please ask a teacher or other adult.

Clean up your work area before you leave. All cords should be placed on the tables (not hanging off the sides). Headphones should be placed on the CPU/tower or monitor. Chair should be pushed under the tables. All trash, papers, and pencils should be picked up.

Do not change computer settings or backgrounds.

Ask permission before you print.

SAVE all unfinished work to a cloud drive or jump drive. Any work that is saved to the computer will be deleted when the computer is powered off or updated at the end of the day.

If you are the last class of the day, please POWER DOWN all computers and monitors.

Explanation:

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