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What part of the desktop computer saves memory?
A desktop saves memory in the CPU. When one wants to access information, the random access memory, or RAM, is used. The amount of memory a computer has depends on the size of the CPU.
What are four types of system resources?
CPU, ROM BIOS, RAM, Operating System
Where data is stored in CPU?
No data is stored in the CPU. The CPU only performs arithmetic and logical operations. However, the CPU is provided with a small memory unit called cache, which rapidly feeds the CPU with data to calculate.
What is the address space of 8086 CPU?
The 8086 CPU has a 20-bit address space, allowing it to address a total of 1 MB (2^20 bytes) of memory. This is achieved through a segmented memory model, where memory addresses are specified using a combination of segment and offset values. The segments can start from addresses 0x0000 to 0xFFFF, enabling the CPU to access different memory segments within the overall 1 MB range.
What memory holds data and instructions as the CPU processes them?
memory
Which computer memory is used for storing programs and data currently being processed by the CPU?
The computer memory used for storing programs and data currently being processed by the CPU is called Random Access Memory (RAM). RAM provides fast access for the CPU to read and write data, allowing for quick execution of tasks and applications. It is volatile memory, meaning it loses its contents when the power is turned off.
What kind of information is stored in the pointer and index registers?
Pointer registers typically store memory addresses, allowing the CPU to access specific data locations in memory. Index registers, on the other hand, are used to modify operand addresses during program execution, often for array indexing or loop iterations. Both types of registers facilitate efficient data manipulation and memory access in assembly language programming and low-level operations.
Does data bus and address bus determine the address space of a CPU?
Yes, the data bus and address bus play crucial roles in determining the address space of a CPU. The address bus defines the range of memory addresses that the CPU can access, with its width (number of lines) directly influencing the maximum addressable memory. The data bus, on the other hand, determines how much data can be transferred simultaneously between the CPU and memory. Together, they define the overall capability of the CPU to communicate with memory and peripherals.
What a working space for the CPU?
The working space for the CPU, often referred to as memory or RAM (Random Access Memory), is where the CPU stores data and instructions that are actively being processed. This space allows for quick access to information, facilitating efficient computation and multitasking. Additionally, cache memory, a smaller and faster type of volatile memory, helps speed up access to frequently used data and instructions, enhancing overall performance.
What is RAM memory used for?
RAM is for Random Access Memory and it is used as sort of a temporary data holding place for the CPU (Central Processing Unit). It holds the code of the program you are running and data being processed.
Why Direct memory access has priority over the CPU when both request a memory transfer?
Direct Memory Access (DMA) has priority over the CPU when both request a memory transfer because DMA can access memory independently of the CPU, allowing for simultaneous data transfers. This reduces the burden on the CPU and improves overall system performance. Additionally, DMA transfers are typically faster and more efficient than CPU transfers, making them a preferred choice for handling memory transfers.
In what all situations DMA is used?
DMA (Direct Memory Access) can be used during the CPU's "busy time", such as when the CPU is processing a read/write cycle, the DMA will take over to perform other tasks while the CPU is busy.
