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Computer Memory

The computer memory is a physical device used to store data or programs for use in a computer. Some types of computer memory include RAM (random access memory), ROM (read-only memory), and page cache.

4,434 Questions

Is their any software for RAM memory extension?

All modern computers use the hard drive or other storage media to extend the apparent size of the RAM of the system. Windows calls this the 'swap file' and the size can be adjusted, although Windows usually takes care of this itself. This method has a performance penalty when used excessively, though, and should not be used to calculate the system RAM size when buying new software which may require more.

A RAM upgrade is the cheapest performance enhancement you can do for a slower computer, so spend your money on more RAM instead of software to make the system think it has more.

Why is cache memory smaller than main memory?

because cache memory is costlier than main memory and physical size of cache memory also matters.ignoring the cost , if we use large cache memory, it will take larger physical space.so mother board won't be able to accomodate it

How big was the magnetic tape industry in the mid 1960s?

By the mid-1960s, the magnetic tape industry represented a $100 million business

When I put memory card in computer - doesn't automatically download it?

You need to be more specific, if you mean a phone, camera or games console style sandisk like memory card, then you need to find the files in My computer, or the mac equivilant

What is the full-form of EHT?

In the health sector, EHT stands for Environmental Health Technician.

What does computer friendliness mean?

it means u easily use it with its graphical or command enviourment. you have no problem to use it and after 2 or 3 days u find that it is easy to learn if you are interested in computer field.

The memory in the processor package but not on the processor die is called?

L3 Cache

There is no specific name for memory caches based on physical location. CPU memory caches are named for function, not location.

As such, there are Level 1, Level 2, and Level 3 caches (and, theoretically, there's nothing preventing Levels 4 and up from being created). Each can be located anywhere (on-die, in-package, off-chip, etc.) depending on the design of the CPU and motherboard.

Modern x86 chips from Intel and AMD include up to L3 cache on-die.

What kind of memory address does a CPU generate?

- An MMU (memory management unit) generates physical address.

- A CPU (central processing unit) generates a logical address.

What is the difference between RAM and FIFO?

fifo is first in first out, we will get input after n clcok cycles but in RAM we can get input /access inputs at any time.This is the basic difference

Can triple channel memory works with a dual motherboard?

Yes it can, BUT only with 2 sticks. When adding the 3rd stick it will most likely crash, blue screen, or not work properly. I got a setup from a company who did so with my machine :( i got it replaced of course but i could only use 4 gigs out of a 6 gigs (3 sticks of 2gb ram). Whenever i added in the 3rd stick it would cause my machine to not boot properly. But using 2 sticks worked out fine. As far as I've tested too even with overclocking it will work fine without and issues unless the ram just isn't able to handle what your putting too it.

Although ECC memory costs more than non-ECC memory why would choose to use it?

If you need to use a server with memory error protection for such critique services like financing, computer simulations and so on. You have to use ECC (error correcting code) memory which supports memory error protection. More information you can find here http://en.wikipedia.org/wiki/ECC_memory#Error-correcting_memory

What are the different RAM Packages?

SDRAM, DDR and Rambus DRA, are the three different types of RAM packages. When shopping for different RAM packages, the type of RAM you purchase does not really matter.

How Many GBs in a TB?

1 Byte= 8 bits

1 KB= 1024 bytes

1 MB= 1024 KB

1 GB= 1024 MB

1 TB= 1024 GB

1 PetaByte = 1024 TB

1 Exabyte = 1024 Petabyte

1 Zattabyte = 1024 Exabyte

1 Yottabyte = 1024 Exa byte

Source: http://www.chaaban.info/2006/11/02/what-comes-after-the-terabyte

Yes this is all the true sizes they have come up with so far

How are the address binding of instructions and data is carried to memory address?

Address binding of instructions and data to memory addresses can happen at three different stages:

Compile time: If memory location known a priori, absolute code can be generated; must recompile code if starting location changes.

Load time: Must generate relocateable code if memory location is not known at compile time.

Execution time: Binding delayed until run time if the process can be moved during its execution from one memory segment to another. Need hardware support for address maps (e.g., base and limit registers).

Is Intel pentium4 3.00GHz will be able to support 1TB Hard disk?

1Tb hard disk supports but its not guaranteed to work perfectly it may cause problems to mother board the preferred one is 500 GB hard disk.

I have checked 1 TB hard disk With D945GCL MotherBoard, but its not working ie. MotherBoard is not Supporting.

Why does operating system go to RAM after it leaves the storage device?

CPUs can only operate on data that is stored in a "register" (a special type of memory inside the CPU), the "cache" (memory next to or just inside the CPU), and RAM (referred to as system memory), and it can also read or write data to "ports" which are connected to various buses all over the system. Each time a port is read from or written to, the source or destination must be either a register or system memory (which may also come from the cache).

All other data in the system is inaccessible to the CPU until it is loaded into one of these three areas (the registers are the fastest type of memory, and system memory is the slowest type of CPU-addressable memory). A hard drive is not directly accessible to the CPU; it has to request the data from the hard drive, and place that data into RAM. Traditionally, this data came in through a data port, and was placed in memory by the CPU. Modern systems use a DMA controller to place the files into memory, allowing the CPU to perform other tasks while it waits for the files to load.

Since the CPU can only work with data stored in system memory, or within its internal memory, the operating system must reside in RAM in order to be useful to the CPU. A typical boot sequence becomes: the BIOS initiates a predetermined call to a hard drive or removable media to locate bootable code (a "boot loader"), which in turn prepares some memory, initializes hardware, etc, then loads the core of the OS into memory, and finally that core loads the rest of the operating system files that it needs to manage the computer.

Storage devices are there only to store data while the computer is powered off. They are not designed to provide immediate access to data, and the CPU is not designed to treat storage devices as immediately accessible data.

What is called when your system is memory bound and the OS stores data that doesn't fit in RAM into a space on a disk?

heres what you do. take your computer, take of all the parts that you can. then take the keybord and pop off all the keys. then, fill your tub with mud and dump all the little pieces in. stir it with a tenis racket and then take them out and let them dry. glue all the pieces back where they go. it should fit just fine.

Can a PO305 code be erased?

Yes, a PO305 code, which indicates a cylinder 5 misfire in the engine, can be erased using an OBD-II scanner after addressing the underlying issue that caused the misfire. However, simply erasing the code without fixing the problem may result in the code reappearing. It's essential to diagnose and repair any mechanical or electrical issues related to the misfire before clearing the code to ensure proper engine function.

How do you convert mega bits into bits?

To convert megabits to bits you just have to multiply megabits by 1,048,576 bits.

1 megabit = 1,048,576 bits.