Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
History Of Parallel Computers
The test with and implementations of the utilize of parallelism started year back in the 1950s by the IBM. The IBM enlarges computers also called as IBM 7030 was building in 1959. In the design of these computers, a number of new ideas like overlapping I/O with processing and instruction look ahead were established. A serious advance towards designing similar computers was going ahead with the development of ILLIAC IV in 1964 at the University of Illinois. It had an only control unit but have multiple processing elements. On this machine, at a time, a one operation is executed on dissimilar data items by diverse processing elements. The idea of pipelining was begin in computer CDC 7600 in 1969. It takes pipelined arithmetic unit. In the years 1970 to 1985, the study in this area was decided on the development of vector super computer. In 1976, the CRAY1 was determined by Seymour Cray. Cray1 was a pioneering effort in the enlargement of vector registers. It accessed main memory only for store and load operations. Cray1 never use optimized pipelined arithmetic unit and virtual memory. Cray1 had timer speed of 12.5 n.sec. The Cray1 processor evolved upto a speed of 12.5 Mflops on 100 × 100 linear equation solutions. The next invention of Cray called Cray XMP was introduced in the years 1982-84. It was attached with 8-vector supercomputers and it is used a shared memory also.
Apart from Cray, the giant company developing, Control Data Corporation (CDC), parallel computers of USA, formed supercomputers, the CDC 7600. Its vector supercomputers named Cyber 205 had memory to memory architecture that is, input Vector operands were flow from the main memory to the vector arithmetic unit and the outputs were accumulated back in the main memory. The benefit of this architecture was that It did not maximize the size of vector operands. The drawback was that it essential required a very high speed memory so that there would be no speed mismatch between main memory and vector arithmetic units. Developing such high speed memory is very expensive. The Clock hustle of Cyber 205 was 20 n.sec. In the 1980s Japan also going ahead for manufacturing high performance vector supercomputers. Companies like, Fujitsu, Hitachi and NEC were the core manufacturers. Hitach Established S-810/210 and S-810/10 vector supercomputers in 1982. All these equipment used semiconductor technologies to accomplish speeds at par with Cyber and Cray. But their vectorisers and operating system were inferior than those of American companies.
You should now have a reasonably clear understanding of what is meant by interaction design. However, there are several other terms which are often used to refer to particular aspe
The new season of AFL, and the excited coming FIFA World Cup in South Africa this June, many sports fans are willing to find the latest results of their beloved sports teams. In th
Georg Thimm handles a webpage that lets you search for upcoming or past conferences in a range of AI disciplines.
List Out the Features of Computer Memory? Features of each type of memory Type Volatile? Write able? Erase Size
Static modeling is used to state structure of the objects that are in the problem domain. These are expressed using class, object and USECASE diagrams. But Dynamic modeling sig
Q. Explain about 4-bit adder-subtractor circuit? Subtraction operation on binary numbers can be obtained by succession of addition operations only it implies that to achieve su
State about the Three-dimensional digitizers Three-dimensional digitizers use sonic or electromagnetic transmissions to record positions. One electromagnet transmission method
The difference among the next and continue verb is that in the continue verb it is used for a situation where there is no EOF condition that is the records are to be accessed again
How is Secure Sockets Layer relied on the certificates? The Secure Sockets Layer standard is not a single protocol, but quite a set of accepted data transfer routines which a
why they are essential in a bus oriented system? Ans) In a multiplexed bus system, many devices are linked to a common bus. If 2 or more devices attempt to use the bus at the si
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd