In computer engineering, computer architecture is the conceptual design and fundamental operational structure of a computer system. It is the technical drawings and functional description of all design requirements (especially speeds and interconnections), it is how to design and implement various parts of a computer — focusing largely on the way by which the central processing unit (CPU) operates internally and how it accesses addresses in memory.
It can be defined as the science and art of selecting and interconnecting hardware components to create computers that meet functional, performance and cost goals.
Computer architecture includes at least three main subcategories:
Once both ISA and microarchitecture has been specified, the actual computing system needs to be designed into hardware. This design process is called "implementation". Implementation is usually a hardware engineering design process.
Implementation can be further broken down into three but not fully separate pieces:
For CPUs, the entire implementation process is often called CPU design; it can also be a family of related CPU designs, such as RISC and CISC.
Some practitioners of computer architecture use more fine subcategories:
Mary Harrison McKee
Mary Scott Harrison McKee (April 3, 1858 – October 28, 1930) was the only daughter of President Benjamin Harrison and his wife Caroline Scott Harrison. After her mother died in 1892, McKee served as her father's First Lady for the remainder of his term.
Zella-Mehlis
Zella-Mehlis is a town in the Schmalkalden Meinigen district, in Thuringia, Germany. It is in the Thuringian Forest, north of Suhl, and east of Meiningen.
Port Said
Port Said (Arabic بورسعيد,
transliterated )
is an Egyptian city near the Suez Canal, with a population of about 500,000.
Port Said has fishing and industries, like chemicals, processed food, and cigarettes. Port Said is also an important harbour both for exports of Egyptian products like cotton and rice, but also a fuelling station for ships that pass through the Suez Canal.
Food processing
Food processing means the ways that are used to change raw ingredients into food so that they can be eaten by humans or animals. The food processing industry uses these processes. Food processing often takes clean, harvested or slaughtered and butchered components and uses these to produce attractive and marketable food products. Similar process are used to produce animal feed.
Food processing industries and practices include the following:
60 (number)
60 (spelled sixty) is a number. It comes after fifty-nine and before sixty-one and is an even number.
It is divisible by 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60.
72 (number)
Seventy-two is an even number. It comes after seventy-one and before seventy-three.
CN Tower
The CN Tower is a telecommunications tower in Toronto, Ontario, Canada. It is tall and is the tallest free-standing structure (meaning it cannot have wires to keep it standing) in Canada, North America, and the Western Hemisphere. It is not the tallest building as there are no floors for people to work or live in. That title goes to One World Trade Center in New York City, New York, United States, which is a bit shorter at tall. It is not the tallest structure of any kind in the Americas either, as the KVLY-TV mast in North Dakota, also in the United States, is taller at , but that needs wires to keep it upright.
Construction of the concrete tower started on February 6, 1973. In 1975, while it was still being built, it became taller than the Ostankino Tower in Moscow. When it opened to the public on June 26, 1976, it became the tallest free-standing structure on land in the world. It held this record for more than thirty years, until the Burj Khalifa, while it was still being built, became taller on September 12, 2007 . The CN Tower continued to be the world's tallest tower until the Canton Tower became taller in 2010. It is now the ninth tallest building in the world and the fifth tallest free-standing structure behind both of these, the Shanghai Tower, and the Burj Khalifa.
The "CN" in the tower's name came from the "Canadian National" Railway, the railway company that built the tower. In 1995, the railway sold the tower to the Canada Lands Company (CLC). Local residents wanted to keep the name "CN Tower", though, so the abbreviation is now a shortened form of Canada's National Tower instead of the original Canadian National Tower. Neither of these names are commonly used, though; the tower is usually called the CN Tower.
Today, the CN Tower is an important icon of Toronto and has more than two million tourists and visitors every year. It has been one of the Seven Wonders of the Modern World since 1995.
It has a restaurant that spins around every 1 hour & 12 minutes
Freiburg im Breisgau
Freiburg (Alemannic German: "Friburg im Brisgau") is a city in Baden-Württemberg, Germany. Its full name is "Freiburg im Breisgau".
Freiburg is on the western edge of the southern Black Forest ().
Freiburg has many twin cities throughout the world:
Iranian president Mahmoud Ahmadinejad's controversial comments, which included questioning the size of the Holocaust, have sparked questions about Freiburg's partnership with Isfahan. After the comments Freiburg's mayor postponed a trip to Isfahan, but most people involved, especially those in the Alliance '90/The Greens party, were opposed to cancelling the partnership.
Baden-Baden
Baden-Baden (Alemannic German: "Bade-Bade") is a spa town with around 50,000 inhabitants in Baden-Württemberg, Germany. It is at the border of the Rhine valley and the Black Forest. The town is well known as a spa town, as a place for rich people and for many cultural offers. In the 19th century the town played an important role as a meeting place for the nobles, rich and other important people. A rich cultural heritage from that time can still be found at Baden-Baden.
The springs of Baden-Baden were known to the Romans, and the foundation of the town is referred to the emperor Hadrian by an inscription of somewhat doubtful authenticity. The name of Aurelia Aquensis was given to it in honour of Aurelius Severus, in whose reign it would seem to have been well known. Fragments of its ancient sculptures are still to be seen, and in 1847 remains of Roman vapour baths, well preserved, were discovered just below the New Castle.
In 1931, the town of Baden-Baden was officially given its double name (a short form for "Baden in Baden", i.e. Baden in the state of Baden). In both World Wars, the town escaped destruction. After World War II, Baden-Baden became the headquarters of the French forces in Germany and the site of a displaced persons camp.
From September 23 to September 28 1981, the XIth Olympic Congress took place in the "Kurhaus" in Baden-Baden.
The Baden Airpark is 15 km west of Baden-Baden.
The Russian writer Dostoevsky wrote "The Gambler" while gambling at the famous Baden-Baden Casino.
Coburg
Coburg (East Franconian: "Coborch", "Coburch") is a town on the Itz River in Bavaria, Germany. Its 2005 population was 42,015. It joined with Bavaria by popular vote in 1920. Before 1918, it was the larger of the two capital cities in the united duchy of Saxe-Coburg and Gotha.
Coburg's Coat of Arms honoring the city's patron Saint Maurice was granted in 1493.
Coburg is about 90 km south of Erfurt and about 100 km north of Nuremberg. Coburg was first mentioned in a document dated 1056, although there was a settlement at the site that before then called Trufalistat. Following several changes of noble owners, it came into the hands of the House of Wettin in 1353 when Friedrich III, the Strong, married Katherina von Henneberg. In 1596, it became the capital of one of the new Duchy of Saxe-Coburg under the leadership of Duke Johann Casimirs (ruled 1596-1633).