The 74181 ALU (arithmetic/logic unit) chip powered many of the minicomputers of the 1970s: it provided fast 4-bit arithmetic and logic functions, and could be combined to handle larger words, making it a key part of many CPUs. But if you look at the chip more closely, there are a few mysteries. It implements addition, […]
Inside the vintage 74181 ALU chip: how it works and why it’s so strange Read More »
AMD has formerly announced the single-chip x86 CPU + GPU that was codenamed Carrizo. With up to four âExcavatorâ CPUs and eight âGCNâ GPUs, it is aimed at notebook computers. AMD brands its chips that combine graphics and control processors âAccelerated Processing Unitsâ (APUs). Through close coupling through shared memory, the cores can share processing
AMD unveils Carrizo its 6th generation x86 CPU + GPU Read More »
Qualcomm is dropping ARM for its next top-of-the-range mobile processor. âWith the 810 (Snapdragon 810) we made a conscious decision to use licensed cores to accommodate the accelerated shift to 64 bit,â says Qualcomm CEO Steve Mollenkopf, âour next premium processor will use our own 64 bit custom CPU architecture as well as the most
Qualcomm drops ARM for premium CPU Read More »
