A bitcoin wallet signs transactions. Outgoing transactions with your private keys, scans the blockchain for incoming transactions in the case of a SPV wallet. No coins are actually stored.
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Hi there!! And what can you do with your keys?
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- Describe in short what a bitcoin wallet does.
A wallet stores your private keys, once you send a transaction the wallets signs it and then broadcasts your signed transaction to nodes in the network. These nodes then propagate this transaction through the network.
There are different types of wallets such as a full node, spv, hardware wallet, paper wallet.
Full Node stores your private key it can send and receive funds it also stores a full copy of the blockchain.
SPV stores your private key can send and receive funds but does not store a full copy of the blockchain, Thus it must trust full nodes to read the full blockchain, it queries many nodes to verify blockchain.
Hardware wallet: Is offline stores your private keys but does not store block chain so it must query the blockchain from nodes
Paper wallet: Stores private key but cannot receive funds.
Hosted wallet: Not true wallet it stores many private keys on a server. Examples are coinbase, binance, kraken
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1 : A bitcoin wallet let you send transactions into the blockchain by using a digital signature from your private key.
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Story private keys.
Finds unspent UTXO that your wallet decrypts.
Signs transactions.
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you can encrypt transactions and sign transactions with your keys. 
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It holds your private keys. With that, transactions can be signed
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1. Describe in short what a bitcoin wallet does.
A bitcoin wallet manage transactions. It sign a transaction with your private key and send it on the bitcoin network. It has no coins but your balance is reconstructed from all your in/out transactions.
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A bitcoin wallet does these things:
- Stores your private key
- Creates and signs transactions
- Broadcasts transactions to the network
- Reads the blockchain
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- A wallet stores your private keys that are used to create and sign a transaction to spend or send coins and then it broadcasts this transaction to the blockchain via the internet.
When you receive funds, the wallet reads the blockchain and will notify you that you have received or spent and gives you an updated current balance of funds on the Database. No actual coins are contained in your wallet.
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A Bitcoin wallet maintains a users private keys, it is able to sign transactions and verify unspent funds.
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A bitcoin Wallet has the function to store your private keys. Every time you want to perform a transaction, the wallet connects to an spv or a node to sign the transaction I am trying to perform.
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A bitcoin wallet “simply” store the private key that is used for signing transactions.
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- A wallet is the place where you store your private key. you also create and send transactions via your wallet.
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A wallet holds and protects your cryptographic private keys. These Keys are used to authorize the sending / spending of your crypto coins / tokens. A wallet does NOT reside on the internet. It is either a hot wallet on your computer, a node wallet that your computer runs, or a cold Wallet (Like a Ledger / Trezor). Or a Subarctic wallet like a Paper Wallet
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The main function of a wallet is to store your private keys - but also it will “construct, sign and broadcast” a transaction. There are no real coins stored in your wallet, instead when you send a transaction , the private key signs it (by digital signature) and computers on the node propagate it further to other boxes by way of querying the blockchain to inspect what inputs are available to spend I.e. UTXOs (unspent transaction outputs) that we’re previously sent to that wallet… If the transaction is valid and to the satisfaction of the miners, they add it to the blockchain and in this way the ledger is updated by consensus… your wallet will then record that you have less cryptocurrency by looking at the blockchain itself which stores all transactions and UTXO data on the network… A wallet itself may be have copy of the blockchain itself but otherwise very often will communicate with another proxy node… By virtue of the above regular queries, your wallet can also sum the total UTXOs you have been sent and have spent and show you your balance… This last part (keeping track of your balance) is something that your wallet does but the blockchain itself does not.
(Hosted wallets such as Coinbase are not real wallets, they do not store private keys - and are instead likelier to look up your allocated funds in each currency from a far larger pool of recorded transactions recorded against a very large third party wallet at Coinbase’s end…)
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Describe in short what a bitcoin wallet?
It is a software in which bitcoin are stored with the private key corresponding to the bitcoin address.
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There are no coins in the bitcoin wallet, only the private key. You can always think that you have them in your wallet for easier understanding. However keep in mind that the private key is the heart to your funds. 
1.Describe in short what a bitcoin wallet does.
A wallet stores your private key which can generate a public key, it also signs transactions and communicates with nodes to determine your account balance
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A bitcoin wallet stores the private key that is used to signed transactions. It broadcast that transaction to the whole network. And when it receives funds, it will notify you that you have there imaginable coins that you can spend.
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