which type of memory is used to store those parts of data and instructions that are being repeatedly used by the cpu.
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[Solved] Which memory is used as part of the processor?
Computer memory is the storage space in the computer, where data is to be processed and instructions required for processing are stored. Key PointsRe
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Which memory is used as part of the processor?
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RAM ROM Registers Hard disk
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Option 3 : Registers
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Computer memory is the storage space in the computer, where data is to be processed and instructions required for processing are stored.
Key PointsRegisters:Registers are a type of computer memory used to quickly accept, store, and transfer data and instructions that are being used immediately by the CPU.
The registers used by the CPU are often termed Processor registers.A processor register may hold an instruction, a storage address, or any data.
The computer needs processor registers for manipulating data and a register for holding a memory address.
Additional InformationRAM- Random-access memory (RAM) is a high-speed component in devices that temporarily stores all information a device needs for the present and future.ROM- Read-only memory (ROM) is a type of storage medium that permanently stores data on personal computers (PCs) and other electronic devices.Hard Disks- Hard disks are flat circular plates made of aluminum or glass and coated with magnetic material.Hard disks for personal computers can store terabytes of information. Data are stored on their surfaces in concentric tracks.
Hence, Registers memory is used as part of the processor.Download Solution PDF
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Q1. GSM, CDMA, GPRS are terms in the reference of -Q2. Arrange the following computer memory types from the slowest to the fastest speed: A. Main memory (RAM) B. L2 Cache C. Hard Disk D. L1 Cache E. CD-ROM Choose the correct answer from the options given belowQ3. A Company's word-processed daily report contains a graph from a spreadsheet. The report needs to display the most recent information from the spreadsheet. What feature should be used to insert the most up-to-date graph?Q4. Which of the following peripheral devices are considered as only input devices? A. Microphone B. Projector C. Joy Stick D. Scanner E. Track-ball Choose the correct answer from the options given below:Q5. With respect to the Computers, what is the purpose of compressing a data file?Q6. Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R Assertion A: Static RAM is typically used for PC's main memory while Dynamic RAM is used for CPU cache. Reason R: Static RAM is faster and more expensive than Dynamic RAM. In light of the above statements, choose the correct answer from the options given belowQ7. Consider the spreadsheet given below: A B C 1 Project Number of Days 2 A 15 3 A 20 4 B 30 5 A 10 6 B 10 7 A 5 What is the output of the following formula in Cell C1? =SUMIF (A2 : A7, "A", B2 : B7)Q8. Anil has decided to use either a DVD-RW or DVD-R. Which of the following statements are true about these storage devices? (A) Both DVD-R and DVD-RW are read-only. (B) DVD-R can be written only once. (C) DVD-RW can be written to many times. (D) Both DVD-R and DVD-RW can be written to only once. Choose the correct answer from the options given below:Q9. In the following spreadsheet, which of the formulae below would be best for cell C2? Note that the formula must be able to be copied down from C2 to both C3 and C4. A B C 1 Lunch Cost (Rs.) Dinner Cost (Rs.) Total Cost (Rs.) 2 15 27 42 3 23 35 58 4 10 35 45Q10. Match List I with List II List – I (File) List – II (File Format) (A) Video 1. .xlsx (B) Podcast 2. .jpg (C) photograph 3. .mp4 (D) Spreadsheet 4. .mp3 Choose the correct answer from the options given below:What is Cache Memory? Cache Memory in Computers, Explained
Learn the meaning and different types of cache memory, also known as CPU memory, which provides faster access to frequently used program instructions or information that the CPU is likely to need next.
DEFINITION
cache memory
Ben Lutkevich, Technical Features Writer
Cache memory is a chip-based computer component that makes retrieving data from the computer's memory more efficient. It acts as a temporary storage area that the computer's processor can retrieve data from easily. This temporary storage area, known as a cache, is more readily available to the processor than the computer's main memory source, typically some form of DRAM.
Cache memory is sometimes called CPU (central processing unit) memory because it is typically integrated directly into the CPU chip or placed on a separate chip that has a separate bus interconnect with the CPU. Therefore, it is more accessible to the processor, and able to increase efficiency, because it's physically close to the processor.
In order to be close to the processor, cache memory needs to be much smaller than main memory. Consequently, it has less storage space. It is also more expensive than main memory, as it is a more complex chip that yields higher performance.
What it sacrifices in size and price, it makes up for in speed. Cache memory operates between 10 to 100 times faster than RAM, requiring only a few nanoseconds to respond to a CPU request.
The name of the actual hardware that is used for cache memory is high-speed static random access memory (SRAM). The name of the hardware that is used in a computer's main memory is dynamic random access memory (DRAM).
Cache memory is not to be confused with the broader term cache. Caches are temporary stores of data that can exist in both hardware and software. Cache memory refers to the specific hardware component that allows computers to create caches at various levels of the network.
Types of cache memory
Cache memory is fast and expensive. Traditionally, it is categorized as "levels" that describe its closeness and accessibility to the microprocessor. There are three general cache levels:
L1 cache, or primary cache, is extremely fast but relatively small, and is usually embedded in the processor chip as CPU cache.L2 cache, or secondary cache, is often more capacious than L1. L2 cache may be embedded on the CPU, or it can be on a separate chip or coprocessor and have a high-speed alternative system bus connecting the cache and CPU. That way it doesn't get slowed by traffic on the main system bus.Level 3 (L3) cache is specialized memory developed to improve the performance of L1 and L2. L1 or L2 can be significantly faster than L3, though L3 is usually double the speed of DRAM. With multicore processors, each core can have dedicated L1 and L2 cache, but they can share an L3 cache. If an L3 cache references an instruction, it is usually elevated to a higher level of cache.In the past, L1, L2 and L3 caches have been created using combined processor and motherboard components. Recently, the trend has been toward consolidating all three levels of memory caching on the CPU itself. That's why the primary means for increasing cache size has begun to shift from the acquisition of a specific motherboard with different chipsets and bus architectures to buying a CPU with the right amount of integrated L1, L2 and L3 cache.
Contrary to popular belief, implementing flash or more dynamic RAM (DRAM) on a system won't increase cache memory. This can be confusing since the terms memory caching (hard disk buffering) and cache memory are often used interchangeably. Memory caching, using DRAM or flash to buffer disk reads, is meant to improve storage I/O by caching data that is frequently referenced in a buffer ahead of slower magnetic disk or tape. Cache memory, on the other hand, provides read buffering for the CPU.
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A diagram of the architecture and data flow of a typical cache memory unit.
Cache memory mapping
Caching configurations continue to evolve, but cache memory traditionally works under three different configurations:
Direct mapped cache has each block mapped to exactly one cache memory location. Conceptually, a direct mapped cache is like rows in a table with three columns: the cache block that contains the actual data fetched and stored, a tag with all or part of the address of the data that was fetched, and a flag bit that shows the presence in the row entry of a valid bit of data.Fully associative cache mapping is similar to direct mapping in structure but allows a memory block to be mapped to any cache location rather than to a prespecified cache memory location as is the case with direct mapping.Set associative cache mapping can be viewed as a compromise between direct mapping and fully associative mapping in which each block is mapped to a subset of cache locations. It is sometimes called N-way set associative mapping, which provides for a location in main memory to be cached to any of "N" locations in the L1 cache.Data writing policies
Data can be written to memory using a variety of techniques, but the two main ones involving cache memory are:
Write-through. Data is written to both the cache and main memory at the same time.Write-back. Data is only written to the cache initially. Data may then be written to main memory, but this does not need to happen and does not inhibit the interaction from taking place.The way data is written to the cache impacts data consistency and efficiency. For example, when using write-through, more writing needs to happen, which causes latency upfront. When using write-back, operations may be more efficient, but data may not be consistent between the main and cache memories.
What type of memory stores frequently used instructions or data needed by the CPU?
Answer (1 of 4): There’s two main types of memory found in a typical computer that do that type of work. One is cache (L1, L2, L3, etc..) which is actually build into (part of) the CPU on the same die. The CPU cache is the fastest and easiest way for the CPU to store and retrieve bits of data tha...
What type of memory stores frequently used instructions or data needed by the CPU?
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What type of memory where data and instructions enter or leave the CPU?
As far as I remember (not 100% sure) it s called “L2” cache register. i9 CPU has got over 6MB, i7 4–6 MB, i5, i3 1–3 MB. The more the better. Other similar but less MBs are: L1, L3 cache. You can google if you wanna know more about CPU L1, L2, L3 cache registers and functions.
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Cache memory stores frequently used instructions or data needed by the CPU. Cache memory is the fastest system memory, required to keep up with the CPU as it fetches and executes instructions. The data most frequently used by the CPU is stored in cache memory.
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There’s two main types of memory found in a typical computer that do that type of work. One is cache (L1, L2, L3, etc..) which is actually build into (part of) the CPU on the same die. The CPU cache is the fastest and easiest way for the CPU to store and retrieve bits of data that it needs, to carry out computing. Cache is very important. Without it, CPUs would be much much slower. The other type of memory is RAM (Random Access Memory) which is used for storing entire programs that are running including parts of the operating system and also data contained in active threads. RAM is slower and
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How does the CPU find information stored in memory?
That is not how it works.
Memory is a vast collection of numbered pigeon holes, each of which can hold a number from 0 to 255.
The pigeon holes are numbered from 0 to 4294967295 or some absurdly large number like that. (this number is how many pigeon holes there are in a 4 GB memory).
The CPU can ask the memory “give me the number in pigeon hole 123456” or whatever, and the memory will reply “17” or some such.
The CPU does not search for things in memory, the CPU already knows where things are.
Sometimes, the CPU knows where something is because it is hardwired. The CPU knows where in memory to fin
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Cache memory. Very fast but expensive. Located closer to cpu. You might have heard of L1, L2, L3 cache.
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