Here is a selection of different tutorials on how to buy specific altcoins in Australia:
How to buy Litecoin (LTC) in Australia
How to buy Tether (USDT) in Australia
How to buy Dai (DAI) in Australia
How to buy Polkadot (DOT) in Australia
How to buy Chainlink (LINK) in Australia
How to buy USD Coin (USDC) in Australia
How to buy OKB (OKB) in Australia
How to buy Monero (XMR) in Australia
How to buy cDAI (CDAI) in Australia
How to buy EOS (EOS) in Australia
How to buy NEO (NEO) in Australia
How to buy Bitcoin Cash (BCH) in Australia
How to buy Stellar (XLM) in Australia
How to buy Huobi Token (HT) in Australia
How to buy Tezos (XTZ) in Australia
How to buy NEM (XEM) in Australia
How to buy Dash (DASH) in Australia
How to buy Filecoin (FIL) in Australia
How to buy Crypto.com Coin (CRO) in Australia
How to buy Binance Coin (BNB) in Australia
How to buy TRON (TRX) in Australia
How to buy Cosmos (ATOM) in Australia
How to buy Bitcoin SV (BSV) in Australia
How to buy IOTA (MIOTA) in Australia
How to buy Wrapped Bitcoin (WBTC) in Australia
How to buy Binance USD (BUSD) in Australia
How to buy Ripple (XRP) in Australia
How to buy LEO Token (LEO) in Australia
Some relevant Information about the definition of cryptocurrencies on Wikipedia:
According to Jan Lansky, a cryptocurrency is a system that meets six conditions:
In March 2018, the word cryptocurrency was added to the Merriam-Webster Dictionary.
Tokens, cryptocurrencies, and other types of digital assets that are not bitcoin are collectively known as alternative cryptocurrencies, typically shortened to “altcoins” or “alt coins”. Paul Vigna of The Wall Street Journal also described altcoins as “alternative versions of bitcoin” given its role as the model protocol for altcoin designers. The term is commonly used to describe coins and tokens created after bitcoin. The list of such cryptocurrencies can be found in the List of cryptocurrencies article.
Altcoins often have underlying differences with bitcoin. For example, Litecoin aims to process a block every 2.5 minutes, rather than bitcoin's 10 minutes which allows Litecoin to confirm transactions faster than bitcoin. Another example is Ethereum, which has smart contract functionality that allows decentralized applications to be run on its blockchain. Ethereum is the most-actively used blockchain in the world according to Bloomberg News and has the largest “following” of any altcoins according to the New York Times.
Significant rallies across altcoin markets are often referred to as an “altseason”.
A blockchain account can provide functions other than making payments, for example in decentralized applications or smart contracts. In this case, the units or coins are sometimes referred to as crypto tokens (or cryptotokens). Cryptocurrencies are generally generated by their own blockchain like Bitcoin and Litecoin whereas tokens are usually issued within a smart contract running on top of a blockchain such as Ethereum.
And more about cryptocurrencies in general:
A cryptocurrency (or crypto currency or crypto for short) is a digital asset designed to work as a medium of exchange wherein individual coin ownership records are stored in a ledger existing in a form of computerized database using strong cryptography to secure transaction records, to control the creation of additional coins, and to verify the transfer of coin ownership. It typically does not exist in physical form (like paper money) and is typically not issued by a central authority. Cryptocurrencies typically use decentralized control as opposed to centralized digital currency and central banking systems. When a cryptocurrency is minted or created prior to issuance or issued by a single issuer, it is generally considered centralized. When implemented with decentralized control, each cryptocurrency works through distributed ledger technology, typically a blockchain, that serves as a public financial transaction database.
Bitcoin, first released as open-source software in 2009, is the first decentralized cryptocurrency. Since the release of bitcoin, other cryptocurrencies have been created.Cryptocurrencies on Wikipedia (Source)
And for more information about Australia you can now read an excerpt of Wikipedia:
Australia, officially the Commonwealth of Australia, is a sovereign country comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands. It is the largest country in Oceania and the world's sixth-largest country by total area. The population of 26 million is highly urbanised and heavily concentrated on the eastern seaboard. Australia's capital is Canberra, and its largest city is Sydney. The country's other major metropolitan areas are Melbourne, Brisbane, Perth, and Adelaide.
Indigenous Australians inhabited the continent for about 65,000 years prior to the first arrival of Dutch explorers in the early 17th century, who named it New Holland. In 1770, Australia's eastern half was claimed by Great Britain and initially settled through penal transportation to the colony of New South Wales from 26 January 1788, a date which became Australia's national day. The population grew steadily in subsequent decades, and by the time of an 1850s gold rush, most of the continent had been explored by European settlers and an additional five self-governing crown colonies established. On 1 January 1901, the six colonies federated, forming the Commonwealth of Australia. Australia has since maintained a stable liberal democratic political system that functions as a federal parliamentary constitutional monarchy, comprising six states and ten territories.
Australia is the oldest, flattest, and driest inhabited continent, with the least fertile soils. It has a landmass of 7,617,930 square kilometres (2,941,300 sq mi). A megadiverse country, its size gives it a wide variety of landscapes and climates, with deserts in the centre, tropical rainforests in the north-east, and mountain ranges in the south-east. Australia generates its income from various sources, including mining-related exports, telecommunications, banking, manufacturing, and international education.
Australia is a developed country, with the world's thirteenth-largest economy and tenth-highest per capita income. It is considered a regional power and has the world's thirteenth-highest military expenditure. Immigrants account for 30% of the population, the highest proportion in any country with a population over 10 million. The country ranks highly in measures of health, education, economic freedom, and civil liberties.
Australia is a member of the United Nations, G20, Commonwealth of Nations, ANZUS, Organisation for Economic Co-operation and Development (OECD), World Trade Organization, Asia-Pacific Economic Cooperation, Pacific Islands Forum, and the ASEAN Plus Six.Source