Advances in Data Storage Technology

RAM: RAM stands for Random Access Memory. It is a bit like a person's short-term memory. RAM is volatile so data only exists only when the computer is turned on, and is used by the operating system and other applications.

RAM (Random Accesses Memory): RAM is used by CPU when a computer is running to store the information that it needs to be used very quickly but it does not store any information permanently.

Irregular Access memory is inside the PC which store the information and work with capacity memory to make lessen less and influence space for essential things to like record and documents in light of the fact that for individual protection.

Random Access Memory (RAM) - the storage of data and instructions inside the primary storage is temporary. It disappears from the RAM as soon as the power to the computer is

c) The memory chip reply with the data from the demanded memory position on the data bus.

Cache memory is the fastest memory outside of the CPU, runs at 10-30 ns per access.

a File or space on the hard drive where data from RAM is "swapped" in order to preserve space.

4. Which of the following answers are true about random-access memory (RAM) as it is normally

When we talk about an on-disk backing store, we usually mean the virtual memory allocated to the physical memory. This virtual memory acts like a ‘backup’ in case we require a little extra physical memory to handle the execution of the active process(es). This memory is usually slower than our RAM, however performance can be optimized by ensuring that only those parts or pages of the process that are active are kept in physical memory. This does agree with the Iron Laws of Memory Hierarchy. RAM is fast and expensive and is used in smaller amounts, while the on-site backing store is usually larger but slow.

Q: Which of the following allows certain hardware subsystems within the computer to access system memory independently of the central processing unit?

4. Which of the following are true about random-access memory (RAM) as it is normally used inside a personal computer?

This would mean programmers would have to edit their code every time they changed machines or added more memory (Lemley, 1999). Early computers had small amounts of RAM because storage technology was very expensive. Programmers had to store master copies of programs on a secondary storage system and pull pieces into RAM as needed. The process of deciding which pieces to pull and which parts of RAM to replace was called “overlaying” (Denning, 2012). “It was estimated that most programmers spent half to two-thirds of their time planning overlay sequences. A reliable method of automating it had potential to increase programmer productivity and reduce debugging by several fold” (Denning, 2012). Thus, the concept of virtual memory was born. This concept makes use of the computer’s hard drive when main memory runs out. However, the hard drive is significantly slower than RAM so we want to keep most of the program functioning in RAM thus specialized hardware and software is needed to give the illusion of unlimited available fast memory (Lemley, 1999). This hardware converts a “virtual” address to a physical address in memory. Aside from virtually increasing memory size, virtual memory also provided three additional benefits, “it isolated users from each other, it allowed dynamic relocation of program pieces within RAM, and it provided read – write access control to individual pieces” (Denning, 2012). It is for these

27. You have installed Windows Server 2008 on a new server and want to centralize user logons and security

This information and instructions for the CPU are stored in Random Access Memory (RAM). This memory is the next hardware component for a bare bones PC referred to as the main memory. The CPU has direct access to any instructions for programs to be executed that are in the main memory and only in the main memory. The main memory is volatile which means it can only store data or instructions when the computer is powered on. The device that stores data when the PC is powered off is the hard drive. It is the computers primary method of storage. Another way it stores memory is through the floppy drive. This form of memory is removable.

Von Neumann is one of the earliest computer architecture designs. But due to its limiting bandwidth operation and underutilization of the processor meant it had to be modified to cater for this. Most modern computer architectures borrow heavily from the Von Neumann architecture which had been considered to be incredibly successful at its time when processor demand was not highly required. In modern computer CPU chips you will find a control unit and the ALU along one local memory, and a main memory in the form of a RAM stick which is located on the mother board (Clements, 2006).