0
What else can I help you with?
The number of memory locations that a CPU with 16 bit program counter can address is?
The number of memory locations that a CPU with 16 bit program counter can address is 65,536. However, the 8086/8088 has a segmented architecture giving a total addressibility of 20 bits or 1,048,576 locations. Without changing the code segment register, though, you can only access 65,536 locations.
What memory locations are the fastest in terms of access solid state drives cpu registers main memory l1 cache?
Cache
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.
A where does CPU fetch the data and instruction from?
The CPU fetches data and instructions from the computer's memory, primarily the Random Access Memory (RAM). When a program is executed, its instructions and the data it requires are loaded from storage (like a hard drive or SSD) into RAM, where the CPU can quickly access them. The CPU uses the memory address provided by the program counter to retrieve the relevant instructions and data.
What is the physical address stored in a special memory location in the device called?
The physical address stored in a special memory location in a device is commonly referred to as the "base address" or "device address." This address serves as a reference point for accessing the device's memory-mapped I/O registers or for direct memory access (DMA) operations. It allows the CPU to communicate with the device efficiently by mapping specific memory locations to the device's functions.
What is the memory's addressibility?
HI I am Ahtarva,The addressibility is how many bits does that particular processor or micro-controller's architecture use to specify the address of a memory location in the memory. For example if someone say that addressibility is 8 bit then your memory address contains 8 bits and at maximum you have 2^8 different memory locations (or say memory addresses in your device). Here 2^8 is called Address space.
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 function of CPU cache?
Many CPUs have what is known as a CPU cache. The function of this CPU cache is to speed up access to data.
Making the address bus accessible to any device enables the device to have access to?
Making the address bus accessible to any device enables that device to communicate with the system's memory and other components. This access allows the device to read from or write to specific memory locations, facilitating data exchange and coordination within the system. Consequently, it enhances overall functionality and performance by enabling efficient data transfer between the CPU and peripheral devices.
What do you mean by interrupt driven input output and programmed input and output?
PIO uses the port access instructions of the CPU to receive or send data. That is also known as polling, since you have to constantly use the CPU to monitor a particular port address. Interrupt driven would use the IRQ controller to access things. The CPU still does the work, but the interrupt calls on the CPU rather than a currently running program doing so.
Advantage of using a CPU register over memory locations?
CPU register is faster than memory loacations
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.
