History of parallel computers, Computer Engineering

Assignment Help:

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.


Related Discussions:- History of parallel computers

Determine the output waveforms for and and or gates, The voltage waveforms ...

The voltage waveforms shown in given fig. are applied at the inputs of 2-input AND and OR gates. Determine the output waveforms. Ans. The Output waveforms for AND and O

C programming, At a shop of marbles, packs of marbles are prepared. Packets...

At a shop of marbles, packs of marbles are prepared. Packets are named A, B, C, D, E …….. All packets are kept in a VERTICAL SHELF in random order. Any numbers of packets with thes

What are the requirements for a swapper to work, What are the requirements ...

What are the requirements for a swapper to work? The swapper works on the highest scheduling priority. Firstly it will look for any sleeping method, if not found then it will

What is sdram, Synchronous dynamic random access memory (SDRAM) is dynamic ...

Synchronous dynamic random access memory (SDRAM) is dynamic random access memory (DRAM) that is initialized with the system bus. Classic DRAM has an asynchronous interface, which m

Real-time software, Real-Time Software Programs that monitor/analyze...

Real-Time Software Programs that monitor/analyze/ control real world events as they take place are known as real-time software. Elements of real-time software involve a data

How to use data validation function in vba, Data validation is a significan...

Data validation is a significant concept in VBA. Application process and a custom dialog box can be used to accurate input errors. You can assign an application process to the fram

Discuss in detail about the computers and supercomputers, Discuss in detail...

Discuss in detail about the Computers and supercomputers Computers are classified with respect to their size, cost and speed as supercomputers, servers, embedded computers and

Define google calendar, Define Google calendar Google Calendar is free,...

Define Google calendar Google Calendar is free, full featured, and easy to use. It lets the user create both personal and shared calendars, which makes it ideal for tracking bu

Unity - variety - principles of composition, Unity / variety Unity is ...

Unity / variety Unity is created by the use of elements that look like they belong together, in other words the piece will have a feeling of internal  consistency. The most

First-order models, First-Order Models: Here if we proposed first-orde...

First-Order Models: Here if we proposed first-order logic as a good knowledge representation language than propositional logic is just because there is more expressive than we

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd