He was an American citizen for 20 years when the war had broken out.
He said he had spent the last 15 years of his life exploring the world.
I couldn't buy the record because I had lost the money
I didn't go to the museum with my class because I had been there before
When we had bought the house, it was empty for several years
Не уверена в правильности, но, как говорится, помогла, чем смогла)
1) b 2) c 3)a 4) b Сбербанка Прогресс-МС 7,2х
The History of Computer DevelopmentThe rapidly advancing field of electronics led to construction of the first general-purpose electronic computer in 1946 at the University of Pennsylvania. It was Electronic Numerical Integrator And Computer or ENIAC, the device contained 18,000 vacuum tubes and had a speed of several hundred multiplications per minute. Its program was wired into the processor and had to be manually altered.Later transistors appeared. The use of the transistor in computers began in the late 1950s. It marked the advent of smaller, faster elements than it was possible to create with the use of vacuum-tube machines. Because transistors use less power and have a much longer life, computers alone were improved a lot. They were called second-generation computers.Components became smaller and the system became less expensive to build.Modern digital computers are all conceptually similar, regardless of size and shape. Nevertheless, they can be divided into several categories on the basis of cost and performance.The first one is the personal computer or microcomputer, a relatively low-cost machine, usually of desk-top size. Sometimes they are called laptops. They are small enough to fit in a briefcase. The second is the workstation, a microcomputer with enhanced graphics and communications capabilities that make it especially useful for office work. And the server computers, a large expensive machine with the capability of serving the needs of major business enterprises, government departments, scientific research establishments. The largest and fastest of these are called supercomputers.A digital computer is not actually a single machine, in the sense that most people think of computers. Instead it is a system composed of five distinct elements: a central processing unit, input devices, memory storage devices, output devices and a communications network, called a «bus» that links all the elements of the system and connects the system itself to the external world.Talking about a central processing unit or the heart of computer; I would like to add that there were several generations of microprocessors. The first generation was represented by processing unit Intel 8086. The second generation central processing unit was represented by processing unit Intel 80286, used in IBM PC AT 286. In the end of 80s such computer costs about 25-30 000 rubles in the former USSR. The third generation is represented by Intel 80386, used in IBM PC AT 386. The microprocessors of the fourth generation were used in computers IBM PC AT 486. There are also central processing units of the fifth generation, used in Intel Pentium 60 and Intel Pentium 66, central processing units of the sixth generation, used in computers Intel Pentium 75,90,100 and 133. Few years ago appeared central processing units of seventh and eighth generations.Computer speeds are measured in gigahertz today. Recently, an optical central processing unit has been invented, which is capable of executing trillions discrete operations per second or it is as fast as the speed of light.So, we are at the threshold of new computer era, when artificial intelligence could be invented. There are no questions with «if», the only question is «when». And time will show us either computers become our best friends or our evil enemies as it is shown in some movies.<span>
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As Head of State The Queen has to remain strictly neutral with respect to political matters, unable to vote or stand for election, however Her Majesty does have important ceremonial and formal roles in relation to the government of the UK.
The formal phrase 'Queen in Parliament' is used to describe the British legislature, which consists of the Sovereign, the House of Lords and the House of Commons. The Queen's duties include opening each new session of Parliament, granting Royal Assent to legislation, and approving Orders and Proclamations through the Privy Council.
The Queen also has a special relationship with the Prime Minister, retaining the right to appoint and also meeting with him or her on a regular basis.
In addition to playing a specific role in the UK Parliament based in London, The Queen has formal roles with relation to the devolved assemblies of Scotland, Wales and Northern Ireland.
Ну ты вроде должен чо то написать про город вродебы