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ram |
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Ram, in the Bible. 1 Ancestor of David. In the New Testament he is called Aram. 2 Son of Jerahmeel. 3 Ancestor of Elihu. ramProjection fixed to the front end of a fighting vessel and designed to damage enemy ships struck by it. It may have been developed by the Egyptians as early as 1200 BC, but it was most commonly used on Phoenician, Greek, and Roman galleys. It was briefly revived in the mid-19th century, notably in the American Civil War, when rams mounted on armored, steam-driven warships were used effectively against wooden sailing ships. Improvements in naval weaponry and the spread of metal-hulled ships soon made it obsolete again. See also battering ram. RAMin full random-access memoryComputer main memory in which specific contents can be accessed (read or written) directly by the CPU in a very short time regardless of the sequence (and hence location) in which they were recorded. Two types of memory are possible with random-access circuits, static RAM (SRAM) and dynamic RAM (DRAM). A single memory chip is made up of several million memory cells. In a SRAM chip, each memory cell stores a binary digit (1 or 0) for as long as power is supplied. In a DRAM chip, the charge on individual memory cells must be refreshed periodically in order to retain data. Because it has fewer components, DRAM requires less chip area than SRAM; hence a DRAM chip can hold more memory, though its access time is slower. RAM(Random Access Memory) A type of memory that provides direct access to any byte on the chip. This "byte addressing" means that the contents of any byte can be read or written without regard to the bytes before or after it. In addition, read and write speeds are symmetrical. It takes no longer to write a byte than it does to read one. In contrast, writing to non-RAM memories such as flash takes considerably longer than reading (see flash memory).
ram 1. an uncastrated adult sheep 2. a piston or moving plate, esp one driven hydraulically or pneumatically 3. the falling weight of a pile driver or similar device 4. a pointed projection in the stem of an ancient warship for puncturing the hull of enemy ships 5. a warship equipped with a ram RAM Computing random access memory: semiconductor memory in which all storage locations can be rapidly accessed in the same amount of time. It forms the main memory of a computer, used by applications to perform tasks while the device is operating
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To a herd of rams, the ram the herdsman drives each evening into a special enclosure to feed and that becomes twice as fat as the others must seem to be a genius. He flew around with a great whir of his wings and settled upon a large ram, with the intention of carrying him off, but his claws became entangled in the ram's fleece and he was not able to release himself, although he fluttered with his feathers as much as he could. I see the sickening wall of weapons now; I see that advancing host as I saw it then, I see the hate in those cruel eyes; I remember how I drooped my head upon my breast, I feel again the sudden earthquake shock in my rear, administered by the very ram I was sacrificing myself to save; I hear once more the typhoon of laughter that burst from the assaulting column as I clove it from van to rear like a Sepoy shot from a Rodman gun. |
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