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What is the impact of semiconductor memories?
Semiconductor RAM (Random Access Memory) chips were first used in computers and other electronic equipment back in the late 1960's. They rapidly became popular because they were very much cheaper to manufacture than the magnetic core memory stacks (which themselves had replaced even older devices such as physical wave delay lines) which were, up to then, the only form of RAM available for mainframe or minicomputer manufacturers to use. The main impacts of the introduction of semiconductor RAMs were: * the possibility to install much larger amounts of logical RAM in computers * housed in a very much smaller physical space * taking very much less power and * at a much lower cost per unit of memory than was ever possible using magnetic core memory stacks. As a result: * the use of semiconductor RAM soon led to closure of most factories set up by mainframe manufacturers after World War II to make magnetic core memory stacks. Relatively few workers are needed in a factory making semiconductor RAM chips and circuit boards compared to one making magnetic memory stacks having the same amount of logical RAM * along with the availability of microprocessor chips, semiconductor RAM made possible the rapid introduction of powerful, yet very cheap, minicomputers * instead of making mainframe computer systems, manufacturers were soon forced to switch their production mix to make far less mainframes. Factories which had been making relatively few massive mainframes were soon full of the quite different production lines needed to make thousands of minicomputers, pcs and server systems.
What did An Wang invent?
an wang invented the magnetic core memory.
Distinguish between in internal and external memory?
Internal Media: Internal media means memory inside the computer like the hard drive and RAM. External Media: External media means removable media like CDs, DVDs and flash drives, which are outside the computer.
What technology uses battery power to retain information even when the power to the computer is off?
complementary metal oxide semiconductor random access memory A form of static random access memory built using both N-channel and P-channel metal oxide semiconductor field effect transistors, to keep the data hold current draw in the microampere range (or smaller) when not being accessed.
Distinguish between primary memory and auxiliary memory?
the main memory is the central storage unit of the computer system. it is relatively large and fast memory used 2 store the programs and data during the computer operation.main memory communicates directly with the CPU. main memory includes RAM and ROMs. devices that provide backup storage are known as auxillary memory. auxillary memory are relatively slow in comparision to the main memory. auxillary memory includes flash memory,magntic disks and floppys. main memory is located inside the CPU but auxillary memory is located out the CPU. the main memory is the central storage unit of the computer system. it is relatively large and fast memory used 2 store the programs and data during the computer operation.main memory communicates directly with the CPU. main memory includes RAM and ROMs. devices that provide backup storage are known as auxillary memory. auxillary memory are relatively slow in comparision to the main memory. auxillary memory includes flash memory,magntic disks and floppys. main memory is located inside the CPU but auxillary memory is located out the CPU.
What is the meaning of core memory?
Core memory refers to computer memory that consisted of magnetic cores. This memory is now obsolete and is replaced by semiconductor memory known as main memory.
Difference bw semiconductor memory and magnetic memory?
1.semi conductor memory is faster,economical,smaller in size and lighter,but magnetic memories are slower compared to that. 2.semi conductor memories consumes less power,but mm consumes more power than that.
Which measure of memory access time is fastest?
There are many measures of memory access. They vary in speed the fastest being magnetic tapes. That may not be a popular choice in this technological age. The next fastest would be magnetic disks, followed by Semiconductor memories and then compact disks.
Which memory is capable of operating at electronics speed?
Semiconductor memory
What are semiconductor memory and what are its type?
what is a semiconductor material? what are its main types, explain each type
What are the key properties of a semiconductor memory?
-Misnamed as all semiconductor memory is random access -Read/Write -Volatile -Temporary storage -Static or dynamic
What characteristics distinguish the various elements of a memory hierarchy?
Registers >> Cache >> Main Memory >> Magnetic disk >> Magnetic tape • As one goes down the hierarchy, the following occur: a . Decreasing cost per bit b . Increasing capacity c . Increasing access time d . Decreasing frequency of access to the memory by the processor
Classification of semiconductor memory?
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What stores information on magnetic cylinders?
Magnetic drum memory or magnetic drum storage, a type of computer memory/storage that is now long obsolete.
What are the key properties of the semiconductor memory?
There are two key properties of semiconductor memory. It can either be stable or semistable as it is used to represent both binary 0 and binary 1. It can be written into and read in order to sense the state of the code.
What is the impact of semiconductor memories?
Semiconductor RAM (Random Access Memory) chips were first used in computers and other electronic equipment back in the late 1960's. They rapidly became popular because they were very much cheaper to manufacture than the magnetic core memory stacks (which themselves had replaced even older devices such as physical wave delay lines) which were, up to then, the only form of RAM available for mainframe or minicomputer manufacturers to use. The main impacts of the introduction of semiconductor RAMs were: * the possibility to install much larger amounts of logical RAM in computers * housed in a very much smaller physical space * taking very much less power and * at a much lower cost per unit of memory than was ever possible using magnetic core memory stacks. As a result: * the use of semiconductor RAM soon led to closure of most factories set up by mainframe manufacturers after World War II to make magnetic core memory stacks. Relatively few workers are needed in a factory making semiconductor RAM chips and circuit boards compared to one making magnetic memory stacks having the same amount of logical RAM * along with the availability of microprocessor chips, semiconductor RAM made possible the rapid introduction of powerful, yet very cheap, minicomputers * instead of making mainframe computer systems, manufacturers were soon forced to switch their production mix to make far less mainframes. Factories which had been making relatively few massive mainframes were soon full of the quite different production lines needed to make thousands of minicomputers, pcs and server systems.
What was full name RAM?
Random Access Memory, as verses Sequential Access Memory (delay lines, magnetic tape, magnetic drum, magnetic disk, etc.)
