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  2. Amdahl's law - Wikipedia

    en.wikipedia.org/wiki/Amdahl's_law

    For example, assume that we are given a serial task which is split into four consecutive parts, whose percentages of execution time are p1 = 0.11, p2 = 0.18, p3 = 0.23, and p4 = 0.48 respectively. Then we are told that the 1st part is not sped up, so s 1 = 1 , while the 2nd part is sped up 5 times, so s 2 = 5 , the 3rd part is sped up 20 times ...

  3. Direct memory access - Wikipedia

    en.wikipedia.org/wiki/Direct_memory_access

    In the original IBM PC (and the follow-up PC/XT), there was only one Intel 8237 DMA controller capable of providing four DMA channels (numbered 0–3). These DMA channels performed 8-bit transfers (as the 8237 was an 8-bit device, ideally matched to the PC's i8088 CPU/bus architecture), could only address the first (i8086/8088-standard ...

  4. Intel 8237 - Wikipedia

    en.wikipedia.org/wiki/Intel_8237

    Intel 8237A-5, used on the original IBM PC motherboard Pinout. Intel 8237 is a direct memory access (DMA) controller, a part of the MCS 85 microprocessor family. It enables data transfer between memory and the I/O with reduced load on the system's main processor by providing the memory with control signals and memory address information during the DMA transfer.

  5. C dynamic memory allocation - Wikipedia

    en.wikipedia.org/wiki/C_dynamic_memory_allocation

    dlmalloc is a boundary tag allocator. Memory on the heap is allocated as "chunks", an 8-byte aligned data structure which contains a header, and usable memory. Allocated memory contains an 8- or 16-byte overhead for the size of the chunk and usage flags (similar to a dope vector). Unallocated chunks also store pointers to other free chunks in ...

  6. 30 Cheap, Beautiful Places To Retire With Just $250K in Savings

    www.aol.com/finance/30-cheap-beautiful-places...

    A variety of factors were found for each location, including the percentage of the population ages 65 and over and the average annual cost of living. GOBankingRates sourced the average Social ...

  7. Object lifetime - Wikipedia

    en.wikipedia.org/wiki/Object_lifetime

    The syntax for creation and destruction varies by programming context. In many contexts, including C++, C# and Java, an object is created via special syntax like new typename(). In C++, that provides manual memory management, an object is destroyed via the delete keyword. In C# and Java, with no explicit destruction syntax, the garbage ...

  8. Billionaire entrepreneur and top adviser to President-elect Donald Trump, Elon Musk, touted that he has reaped the benefits of a controversial class of weight-loss drugs, after fellow top Trump ...

  9. Health benefits of rhubarb and how to uniquely include the ...

    www.aol.com/health-benefits-rhubarb-uniquely...

    December 3, 2024 at 2:54 PM. Rhubarb is a vegetable that visually appears to resemble celery in texture — but its color and taste are differentiating factors between the two.