Term
What is direct access memory? |
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Definition
It's memory where you are able to get direct access to a specific memory location without having to access or traversing other memory location |
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Term
What is sequential access memory? |
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Definition
It's memory where you have to traverse other memory locations in order to get to a desired address |
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Term
What does it mean if memory is volatile? |
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Definition
It means that when power is turned off, all the data is lost |
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Term
What does it mean if memory is nonvolatile? |
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Definition
This means that when power is removed the data is not lost |
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Term
What are examples of volatile memory? |
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Definition
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Term
What are examples of nonvolatile memory? |
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Definition
Hard drives, tapes, USB drives |
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Term
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Definition
Memory that is applied at compile time using an address |
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Term
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Definition
Memory that is applied at run time (use calloc() and malloc()) |
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Term
What is write access time? |
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Definition
It's the amount of time taken to write data into the device |
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Term
What is read access time? |
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Definition
It's the amount of time taken to read the data from the device |
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Term
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Definition
It's the minimum amount of time that elapses between two consecutive memory accesses |
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Term
Interleaved memory helps to improve _____ |
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Definition
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Term
What is interleaved memory? |
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Definition
It is the process of alternating accessing sequential memory from multiple memory devices. It speeds up the effective address time |
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Term
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Definition
It is Dynamic Random Access Memory and the hardware consists of memory banks with transistors and capacitors. The memory banks are interleaved. Has row and column addressing |
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Term
True or False: DDR is based on SDRAM technology |
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Definition
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Term
What does EPROM stand for? |
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Definition
The erasable and programmable read-only memory |
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Term
True or False: Flash is memory is EEPROMs |
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Definition
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Term
True or False: There is a physical limit on how many times an EPROM can be erased and rewritten. |
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Definition
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Term
What does EEPROM stand for? |
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Definition
Electronically erasable and reprogrammable read-only memory |
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Term
True or False: NOR flash is more reliable than NAND flash |
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Definition
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Term
True of False: magnetic hard disks, solid-state disks, and the optical CD/DVD/Blu-ray devices are all examples of secondary storage |
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Definition
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Term
Magnetic disc drives all rely on _____________ |
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Definition
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Term
Discs use __________ to record and read the disc |
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Definition
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Term
What are some of the hardware used in magnetic disc technology? |
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Definition
1. platters 2. read heads 3. write heads 4. track 5. sector 6. cylinders |
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Term
What does RAID stand for? |
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Definition
Redundant Array of Independent Disks |
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Term
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Definition
It's have multiple separate disks accessed in parallel. There are 7 levels- some focus on speed and others on reliability |
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Term
True or False: SSD costs twice as much per GB as HDDs |
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Definition
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Term
The logical disk is divided into _____ |
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Definition
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Term
A set of logically consecutive strips that maps exactly one strip to each array member is referred to as a _________ |
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Definition
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