There are many differences between a parliamentary government and a presidential system of government. The biggest difference is the principle of separation of powers; in a parliamentary system, the executive (the government or the cabinet) is usually drawn from the legislature and/or is dependant on the legislature for its mandate (the legislature must have "confidence" in the government). In a presidential system the executive (the president and the cabinet) are totally separate from the legislature and are not dependant on the legislature for confidence.
In a parliamentary system there is a Head of Government (prime minister, premier, president of the council, president of the government, etc) who leads the government and a Head of State (President, Monarch) who usually has ceremonial but important functions; some of these functions include: dissolving the legislature, calling new elections (usually on the advice of the Head of government), appointing someone to form a government (Head of Government), bestow honors, and is usually the Commander In Chief of the Armed Forces. In a Presidential System, the President fulfills both roles (Head of State and Head of Government).
In a Parliamentary System, theoretically, an election can be called at any time but there is usually a maximum time that a legislature can sit (4 or 5 years). If the government loses the confidence of the legislature (if 50% +1 of the legislature votes against an important bill like the budget or if there is a motion of no confidence and 50%+1 vote against the government) then one of two things occur: (1) the cabinet is reshuffled sometimes with a new head of government (2) the head of government will ask the head of state to dissolve the legislature, triggering new elections. In a Presidential system terms are fixed for the legislature and the executive. The legislature may only impeach the President (in the US) and even this does not ensure that the President resigns from office (ex: Bill Clinton).
Parliamentary is the British political system. Presidential is the American political system.
In parliamentary system the Prime Minister is the real head but in Presidential form of government the President is the real head.
The chief differences between parliamentary and presidential governance are procedural and ceremonial. In parliamentary systems the electorate selects parties, which in-turn chose the sitting ministers of parliament (MPs).The Prime Minister is by fact an MP, unlike an American system president wholly separate from the Congress and Senate. In the parliamentary system the Prime Minister is equivalent to the American president as chief executive. Moreover the president in a parliamentary system is largely ceremonial symbolic position.
The widely used definition of Presidential Democracy is "A system of government where the executive branch exists separately from a legislature" whereas, Parliamentary Democracy is defined as "A party with greatest representation in the parliament and its leader becoming the prime minister or chancellor".
Generally, a Parliamentary system will get work done quicker, but a Presidential system is sometimes desirable because it partly limits the government.
An idiotic and stupid system at that
In a parliamentary system, the executive branch is drawn from the legislative branch, with the Prime Minister being the head of government. This contrasts with a presidential system where the executive branch is separate from the legislative branch, with the President being the head of state and government.
Parliamentary System has a Presiden/Monarch as a Head of State and a Prime Minister/chancellor as the Head of Government. The legislature may be dissolved for new elections most of the time it is the lower house. In a Presidential systems the President is both the Head of State and Government. The terms of the President and Legislative branches are fixed so they can not be dissolve for new elections. This is not complete list but you get the idea
Paraguay have a parliamentary dictatorship.
Yes.
it is a combination of both presidential system and parliamentary system
Australia does not have a presidential system. The democratic features of the parliamentary system include regular free and fair elections, that government is formed by the majority party.