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Draw a neat sketch showing a pushdown stack memory machine and explain it?
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∙ 13y ago
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What is the difference between Harvard and modified Harvard architecture?
Harvard architecture:The original Harvard architecture computer, the Harvard Mark I, employed entirely separate memory systems to store instructions and data. The CPU fetched the next instruction and loaded or stored data simultaneously and independently. This is by contrast with a Von Neumann architecture computer, in which both instructions and data are stored in the same memory system and (without the complexity of a cache) must be accessed in turn. The physical separation of instruction and data memory is sometimes held to be the distinguishing feature of modern Harvard architecture computers. However, with entire computer systems being integrated onto single chips, the use of different memory technologies for instructions (e.g. Flash memory) and data (typically read/write memory) in Von Neumann machines is becoming popular. The true distinction of a Harvard machine is that instruction and data memory occupy different address spaces. In other words, a memory address does not uniquely identify a storage location (as it does in a Von Neumann machine); you also need to know the memory space (instruction or data) to which the address applies.Modified Harvard architecture:A pure Harvard architecture computer suffers from the disadvantage that mechanisms must be provided to separately load the program to be executed into instruction memory and any data to be operated upon into data memory. Additionally, modern Harvard architecture machines often use a read-only technology for the instruction memory and read/write technology for the data memory. This allows the computer to begin execution of a pre-loaded program as soon as power is applied. The data memory will at this time be in an unknown state, so it is not possible to provide any kind of pre-defined data values to the program.The solution is to provide a hardware pathway and machine language instructions so that the contents of the instruction memory can be read as if they were data. Initial data values can then be copied from the instruction memory into the data memory when the program starts. If the data is not to be modified (for example, if it is a constant value, such as pi, or a text string), it can be accessed by the running program directly from instruction memory without taking up space in data memory (which is often at a premium).
How can you solve physical memory dumping problem on your machine which is not allowing you to start the machine?
Try starting your computer in safe mode by pressing the F8 key at the beginning of the start up. Keep pressing it until it gives you the option to enter safe mode. From there you should be able to fix the problem.
What art can you do with your pupils?
i can do creativeart & memory i can do creativeart & memory
What are gigabytes in cameras?
gigabytes (gig) is the memory on the camera or on a memory card. Some times you can increase the memory by getting a memory card, but , make sure the card is the correct size.
What is the true art of memory is the art of attention?
what does memory mean
What actors and actresses appeared in The Memory Machine - 2013?
The cast of The Memory Machine - 2013 includes: Verity Peniket as "The Girl"
What is slow memory interfacing?
explain how slow memory get interfaced with 8085
M- m plus in a calculator?
M- subtracts the value showing from the contents of the memory. M+ adds value showing to the contents of the memory You should be able to clear the memory with MC or some similar button.
Why is it that when you save images on your memory card they still appear in your phone's photo and image memory?
Because maybe your phone is showing photos and data located entierly on the phone! Like if its showing you data from your device and on your memory card.
What is memory explain the types of memory?
pls answer my questions and pls dont be asking me
Explain storing a word and fetching a word into memory?
Storing a word in memory involves writing the word's data into a specific memory location. Fetching a word from memory entails reading the word's data from the corresponding memory location and transferring it to the processor for further processing.
How do you fix a memory leak?
reboot the machine
How many machine cycle are required in LDA 2050H?
It will require 4 machine cycles, 1.opcode fetch 2.memory read 3. memory read 4. memory write
Why cant you use all of your systems memory to run a virtual machine?
You can't use all of your system memory to run a virtual machine because then there wouldn't be enough memory for the Operating System that's running the virtual machine to function. For instance, if you have 4 GB of system memory total, and your operating system needs at least a quarter of that (1 GB) to function, then your virtual machine maximum memory would be 3 GB.
How do you delete memory from fax machine?
is there a memory card or hard drive in a fax machine?? i want to throw away a fax machine but, i dont want any info to go with it for identity theft
Explain concept of electronic memory?
ELECTRONIC MEMORY IS WHERE DATA AND PROGRAME INSTRUCTIONS ARE STORED
Explain in details the importance of memory to the system?
If we didnt have memory then we would have no feelings or emotion !!
