What is Cell: Definition and 954 Discussions

Cell is a multi-core microprocessor microarchitecture that combines a general-purpose PowerPC core of modest performance with streamlined coprocessing elements which greatly accelerate multimedia and vector processing applications, as well as many other forms of dedicated computation.It was developed by Sony, Toshiba, and IBM, an alliance known as "STI". The architectural design and first implementation were carried out at the STI Design Center in Austin, Texas over a four-year period beginning March 2001 on a budget reported by Sony as approaching US$400 million. Cell is shorthand for Cell Broadband Engine Architecture, commonly abbreviated CBEA in full or Cell BE in part.
The first major commercial application of Cell was in Sony's PlayStation 3 game console, released in 2006. In May 2008, the Cell-based IBM Roadrunner supercomputer became the first TOP500 LINPACK sustained 1.0 petaflops system. Mercury Computer Systems also developed designs based on the Cell.
The Cell architecture includes a memory coherence architecture that emphasizes power efficiency, prioritizes bandwidth over low latency, and favors peak computational throughput over simplicity of program code. For these reasons, Cell is widely regarded as a challenging environment for software development. IBM provides a Linux-based development platform to help developers program for Cell chips.

View More On Wikipedia.org
Recent contents Top users
  1. R

    Difference between 2-electrode and 3-electrode cell

    Hi! I'm currently starting to work with supercapacitors performing cyclic voltammetry of carbon electrodes in 2 and 3 electrodes cell. Since the electrolyte is H2SO4 1M, the scan range is 0.0V to 0.8V. When using the 3-electrodes cell (RE: Ag/AgCl, CE: Pt) I can clearly observe a broad redox...
  2. P

    Why Does My Cell Phone Work Inside a Metallic Elevator?

    Very often the principles of faraday cage are extended to non electrostatic situations, i.e. situations involving time varying electric and magnetic fields. This means that the interiors of a metallic shell should be impervious to external time varying electric and magnetic fields. However, I...
  3. A

    Load cell (how to convert V to N)

    Hello, I have Omega made load cell with 150g capacity,Rated output 2mV/V, Excitation 10V.How I can convert voltage values to the force (Newtons)?When no force applied meter shows 0,06V and then i pressing with finger the max value I get is 0.7V.So how I can converts those volts to Newtons now?
  4. C

    Finding unit cell dimensions of iron or copper

    Homework Statement The research notes from an x-ray diffraction experiment were damaged and information was lost. The wavelength of the x-rays used in the experiment, and measurements of the three smallest Bragg angles (θ) from the sample were all that remained: they were 0.71Å, 10.1°, 14.4°...
  5. F

    Solar cell open circuit voltage and bandgap

    Hello Forum, if we take a silicon solar cell, the open circuit voltage is about 0.5V. the current increases as the solar cell area and illumination increases. But the 0.5 V output voltage does not change as the area and illumination level vary...Why? It must have something to do with...
  6. C

    Average distance in latitude/longitude cell using Haversine formula

    Homework Statement I've constructed a 5°x5° latitude/longitude cell, from 40-45° N and 85-90°W. This puts the center somewhere near the southern tip of Lake Michigan. I'm trying to find the average distance from the center of that cell (42.5°N, 87.5°W) to any other point in that cell...
  7. M

    Biology - why do plants and algal have cell wall?

    Homework Statement Suggest a hypothesis to explain why algal and plant cells have cell walls. Suppose that mutant individuals from each group lacked a cell wall. How could you use these individuals to test your hypothesis? Homework Equations There aren't really... The Attempt at...
  8. B

    Tissue Engineering Problem - Find minimum starting cell population

    Homework Statement You want to create a tissue engineered blood vessel using smooth muscle cells. Your plan is to isolate smooth muscle cells from discarded human tissue obtained from heart surgery and grow them for a long time to create cells own ECM. Smooth muscle cells have enormous...
  9. R

    Looking for unique load cell, or equal

    LOOKING FOR WEIGHT/MEASUREMENT DEVICE: DOES ANYONE HAVE ANY SUGGESTIONS? Please bear with me. I think the best way to present this is to post my RFQ and that will, I hope, explain what I am looking for. AN ALTERNATIVE TO A NORMAL LOAD CELL, WHICH WOULD HOPEFULLY BE MUCH CHEAPER, WOULD BE...
  10. A

    Find the translation vectors of the primitive cell

    Homework Statement Find the translation vectors of the primitive cell. The figures are provided. Homework EquationsThe Attempt at a Solution I found these are more difficult than what I am learning from Kittel. I did number 1, but not sure if it is correct. Answer or hint for any of the...
  11. E

    Solar Power - Photovoltiac cell confusion

    I have been trying to understand how PV cells work in solar panels and have become a bit confused, here is what I have read so far: The PV cell is basically a PN junction diode with a conductive connection on the P and N material between this connection there is a load, a lamp for example...
  12. P

    Maximum power delivered by a solar cell to a resistive load

    Homework Statement The current-voltage characteristic of a photovoltaic energy converter (solar cell) shown in the attached figure can be approximated by: i = I_1(e^{v/V_{TH}} - 1) - I_2 where the first term characterizes the diode in the dark and I2 is a term that depends on light...
  13. R

    Break even on cell phone plans

    Homework Statement A customer is choosing between two cellular phone plans. One plan has a monthly fee of $50 for an allowance of 500 minutes per month. If the customer uses more than 500 minutes, the charge is $0.35 per additional minute used. The other plan has a monthly fee of...
  14. Greg Bernhardt

    Molecular Biology of the Cell by Bruce Alberts

    Author: Bruce Alberts Title: Molecular Biology of the Cell Amazon Link: https://www.amazon.com/dp/0815341059/?tag=pfamazon01-20 Prerequisities: Contents:
  15. Greg Bernhardt

    Essential Cell Biology by Bruce Alberts

    Author: Bruce Alberts (Author), Dennis Bray (Author), Karen Hopkin (Author), Alexander Johnson (Author), Julian Lewis (Author), Martin Raff (Author), Keith Roberts (Author), Peter Walter (Author) Title: Essential Cell Biology Amazon Link...
  16. D

    How to Rotate a Standard Cell to Align a Specific Plane with [001]?

    Hi, I have a standard cell which I would like to rotate. I would like to rotate it in such a way such that when I define some plane in the unrotated cell [hkl] that this same plane corresponds to the [001] plane in the rotated cell. I essentially want to keep the same unit cell, just rotate the...
  17. U

    Is Farady's law applicable to electrochemical cell

    Farady's law are derived for electrolysis. My question is the same rule can be applied in the analysis of electrochemical cell? I think those two cell (electrolytic and electrochemical) are just opposite functional to each other.
  18. A

    Centrosymmetricity of unit cell or the pattern.?

    hello i got to ask if the center of symmetry is specific to a unit cell or a pattern or system of specific unit cell? I mean is Cubic (Bravis Lattice) is Centro symmetric or the structures formed by it. As an example, Tetragonal unit cell appears centro-symmetric but forming structures like...
  19. marellasunny

    Cell arrray that stores with iteration a new set of values

    Here,I have a pre-defined function called 'intersections(x,...) that finds the intersections between 2 functions of x.Now,for each iteration of the loop,I get a set of (x,y1) and (x,y2) values. I want to store them in an array without losing the previous iteration's values. So,I figured I'd use...
  20. D

    How can I handle an infinite upper limit in an integral for a photovoltaic cell?

    Homework Statement Hi, So I have this problem regarding a photovoltaic cell I found part 1 easy and part 2 wasn't actually too bad either but I couldn't finish the calculation. I managed to get to the stage where I have an integral , the problem is that the upper limit is infinity and I'm...
  21. GreenAce92

    Can a Cell Phone Spin Too Fast to Communicate?

    I asked this question in Yahoo Answers but I didn't think that the responses were very good This is just for my own knowledge I wanted to know if let's say for instance that I had a rotary device, clamp right on the center of mass of my phone and it spun rapidly... could the phone spin so...
  22. 4

    Natural Gas to generate hydrogen, fuel cell?

    Hi all, one last question for today - Given steam reforming of natural gas to generate hydrogen, what is the major difficulty with it with respect to most fuel cells? Thank you,
  23. 4

    Silicon PV Cells: Max Wavelength for Forming EHP

    Hi, Given that the band-gap of a silicon PV cell is 1.1 eV, what is the maximum wavelength of solar energy (minimum frequency) required forming an electron-hole pair (EHP)?
  24. 4

    Fuel Cell, Etn, Er and polarizations

    Can anyone help me explain the elements of the fuel cell polarization curve. Please be sure to include Etn, Er, and the various polarizations. I am interested by the use of thermodynamics as well... Thank you-
  25. E

    What is going on when a solar cell goes into reverse bias?

    I would like to understand exactly what happens when a PN doped crystalline silicon cell is shaded.Lets assume we have ten solar cells wired together in a series string.That there is plenty of sunlight on the first nine cells but cell ten is completely shaded.Lets say the forward bias of each...
  26. V

    Calculate cell potential when concentrations aren't 1M, but are the same.

    Homework Statement Calculate standard potential for a Cu2+ 0.5M, Zn2+ 0.5M cell.Homework Equations Ecell = E0cell - (RT/nF)lnQThe Attempt at a Solution So, I know at standard conditions it would simply be Ecell = 0.340 - (-0.763) Ecell = 1.103 It's the concentrations that are confusing me. If...
  27. G

    Electrolysis Cell Design. (Not for Car)

    Hello all. As the title has informed you, I wish to make an water electrolysis cell that can not only produce hydrogen, but also store it completely separate from the oxygen (Again, I promise you, it is not for fuel. Now, your probably wondering why I don't just make the typical...
  28. K

    Electrolytic Cell: Anode, Cathode & Charge Explained

    Hello Please help me with this. Cathode has negative charge, anode has positive charge. Electrons travel from anode to cathode. Question 1: why is anode positive and attracts anions? How can the charge build up on this electrode if electrons are constantly flowing out of this electrode...
  29. I

    Question about the uncertainty principle and unit cell in phase space

    In statistical mechanics, nearly all the textbooks say that the volume of the smallest cell in the phase space of a N-particle system is h^{rN} where h is the Planck Constant, r is the degree of freedom. Also these books say that this comes from the uncertainty principle. However, the...
  30. J

    Electrolytic cell half reaction equations?

    Hi everyone, I was just wondering how I would choose which species in an electrolytic cell to use as the cathode and which to use as the anode. For example, for aqueous aluminum chloride (inert electrodes), H2O (-0.83V) and H2O (+1.23V) will be used as the anode and cathode for the half...
  31. S

    Confusion about Unit Cell Structure: Understanding Lattice and Basis Vectors

    Greetings everyone, I am taking a course on elementary condensed matter physics and our textbook is "Introduction to Solid State Physics" by Charles Kittel. I have read the crystal structure from 4 books; however, I am still confused about the definitions such as unit cell, primitive vector and...
  32. A

    Help Adam Understand Cell Signals and Power

    I'm trying to learn more about how cell phones operate. Right now I don't understand the power involved in the signal between the cell site and mobile phone. I've read that the average cell phone has a signal strength that ranges in between -80dBm and -120dBm. I've also read that cell phones...
  33. R

    Is a fuel cell technically an energy storage device?

    I've heard fuel cells being called energy storage devices. However, unlike batteries, they only convert energy. They don't store anything unless you consider the brief moment of converting chemical energy to electrical energy storage time? Are there fuel cell types that store let's say hydrogen...
  34. J

    Electron/Hole Effective Mass vs Solar Cell efficiency

    Hi. I'm doing research relating to solar cells and came about the topic related to effective masses. The wiki article stated how effective mass (solid state materials) influences the efficiency of solar cells, but doing more research I couldn't find any solid examples of an effective mass vs...
  35. T

    Troll physics: Solar cell and LED in series

    So today my brother and I were playing with a mini solar cell that I just got, watching the voltage change with a multimeter, and seeing how even an LED would produce about .5 V in the cell, when he posed a question: If you were to take a solar cell (i.e. photodiode) capable of producing...
  36. P

    Action Potential with Nerve Cell and Finding Power

    Homework Statement During an action potential, Na + ions move into the cell at a rate of about 3 x 10^-7 mol / m^2 s. How much power must be produced by the "active Na+ pumping" system to produce this flow against a + 30 mv potential difference? Assume that the axon is 40cm long and 30 mu m...
  37. K

    Modifying a Micro-Heater for Rechargeable Cell Phone Battery Use

    Hi! My brother has a small micro-heater that runs on a single AA battery. The battery life tends to be rather short so we started using rechargeable batteries. The rechargeable batteries are marked as 2000mAh and since they're AA and Nickel-metal Hydride I'm guessing they operate at 1.25v...
  38. D

    Can self-assembling molecules show us how cells function?

    I'm a biology dilettante who is trying to get a correct picture of the cell. From this web page http://www.arcfn.com/2011/07/cells-are-very-fast-and-crowded-places.html one gets a very chaotic impression. Small molecules are racing around with 250 miles per hour. Ken Shirrif: "In addition, a...
  39. O

    Electrical DIY Voltage cell type/behaviour explanation please

    hello PF community i'm looking for help in understanding the classification and observed behaviour of some DIY voltaic (?) cells and their associated circuits with which I've been tinkering for a couple of years the cell operation seems to belong somewhere between galvanic and the original...
  40. A

    Solar cell charging a super capacitor - need an equation

    I have a very small solar cell that outputs 4 volts (open circuit) and 50 μA (short circuit). I'm trying to charge a 0.33 F capacitor that is rated for 5 volts. I'm looking to understand the charging relationship. 1. What equations govern the charging of this capacitor? I'm already aware of...
  41. L

    Understanding Ising Cell Hamiltonian

    I don't understand this idea. For example we have cubic crystal which has a lot of unit cells. We define spin variable of center of cell like S_c. And spin variable of nearest neighbour cells with S_{c+r}. So the cell hamiltonian is...
  42. Ivan Seeking

    Femtocell for local cell connection

    Very cool! I just started using my new femtocell connection from AT&T. It provides a cell connection for a range of about 10 meters, using an internet connection. It seems to work great. The connection is solid with 5 bars, and the sound quality is excellent. I have been playing dueling phones...
  43. U

    The Newest research in solar cell?

    Hi, I want to continue my study in physics, but i have to find topics for research proposal, and I need your help. I hope you can give me the news about the newest research in solar cell? the material or new method? thanks for your help...:smile:
  44. AGNuke

    Electrochemistry - Half Cell Reactions

    A Galvanic Cell is given. Write its Anode and Cathode half reactions, complete cell reaction and thus determine if the given is concentration cell. Pt|O_2(1\; atm)|NaO\! H(10^{-3}M)||H_2SO_4(0.5M)|O_2(1\;atm)|Pt I know that at anode, Oxygen will get oxidised, maybe from NaOH solution and...
  45. R

    I want good documentaries on cell theory, DNA

    What are some good documentaries on cell theory cell membranes DNA or genetics.Also documentaries on bacteria and viruses would be good.
  46. F

    Process of increasing solar cell efficiency- what's it like?

    I've recently gained an interest in solar cells and it's development. I know the basic working principle of solar cells, but other than that I'm quite clueless about the field. I was wondering, what is the process of increasing solar cell efficiency like? Are there analytical ways of...
  47. P

    How does the energy usage per cell compare for different organisms?

    Recently I saw an article about sled dogs burning 10,000 calories in a day. Even when adjusted for mass, this is significantly more energy than a human athlete might use. This got me thinking: how much energy do bacteria use in a day? Trees? Fungi? Other animals? I can think of lots of...
  48. fluidistic

    What is the length of the primitive cell for sodium with a BCC structure?

    Homework Statement Knowing that sodium has a BCC structure, a density of 970 kg/m^3 and each atom has an atomic mass of 22.98 amu, determine the length of the primitive cell. Homework Equations Not sure. The Attempt at a Solution I calculated how many atoms of Na there is in 1m^3...
  49. S

    What makes electron flow in an electrochemical cell

    So, here is my question we know about an electrochemical cell in which when zink rod and copper rod are dipped in there respective solutions the electron flow from zink rod to cu ... but what makes those electron to flow ... here comes the answer the potential difference did that ... please...
  50. K

    How do I find the emf and internal resistor of this cell of this circuit?

    This is a potentiometer circuit. I don't have the diagram so I hope you can follow me. This is the main circuit with the unknown emf E with internal resistance r of the main cell and with two resistors P and Q connected in series at the bottom of this rectangular circuit, p being connected near...
Back
Top