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Why DMA controller data transfer is faster?
The direct memory access or DMA mode of data transfer is the fastest amongst all the modes of data transfer.In this mode ,the device may transfer data directly to/from memory without any interference from the CPU.The device requests the CPU through a DMA controller to hold its data,address and control bus so that the device may transfer data directly to/from memory.
What are the differences between main and secondary memory?
(Dynamic) Memory is:Much fasterCloser to the CPU (Thus can transfer data to the CPU faster)Expensive (in terms of cost)Usually volatile: All data in memory will be lost when it has no power.Requires a constant(ish) supply of energy.Secondary storage is:Slower than memoryFairly cheapNon-volatileOnly requires power while in useEasier to get large quantities of data
How do you transfer memory stick data to gmail?
You can transfer memory stick data to Gmail easily. It can be done via attaching the memory stick to computer. Then attaching files by browsing the memory stick.
What is the function of secondary storage?
Primary memory is the only type of memory directly accessible to the CPU. The CPU continuously reads and executes instructions stored here. Also, any data actively operated on is also stored here.
What are the disadvantage of primary storage?
Well for mac you can only back up your data when you have a secondary storage hard drive, for windows it gives you more space to download and to use it, basic
Distinguish between primary and secondary memory?
Computer memory is categorized into primary and secondary memory. While primary memory is the main memory of the computer which is used to store data or information temporarily, whereas secondary memory refers to external storage devices that are used to store data or information permanently.
Does Synchronous memory retrieves data faster than asynchronous memory?
yes
What is the purpose of storing a program in memory?
Anything stored in memory can be accessed much faster than items stored on the harddrive. This is basically because of the physical composition of memory chips which allows for much faster data-transfer. The tradeoff is the amount of space that memory provides, and the number of programs that end up sharing the memory. So, when a program is stored in memory, its execution is much faster. However, if a program exists ONLY in the memory, and does not store any data on the primary disk, then when you exit a program, all your data will also be destroyed due to active memory management that takes place. Data will not persist when program exists. Hence, you will need to write the data to a file on the hardisk which can be accessed later and loaded into the memory next time when the program runs.
Can you transfer data from PC to ps2 using a usb cable?
There is a Device which has a PS2 memory card slot with a USB and it can be attached to PC to transfer your PS2 memory data to PC.
What is data memory?
cache memory refreshes instantly so access time is faster
What is dirty page in operating system?
A data can be retrieved from the secondary storage for use in main memory, but if we edit the data and not save the data in to the secondary storage, it is termed as a dirty page.
What is the purpose of memory?
The purpose of secondary memory is storage of data that is not immediately needed for processing by the CPU. Examples of secondary devices are hard drives and optical drives.
