How many words memory can accommodate if address space is 16 bits?
You can address 2^16 words and each word is 8 bit (= 1 byte). Therefore it is 64 KB. If the word size was 16 bit. The answer would be 128 KB.
What is the address space of a system with 16 bit addresses?
On a 16-bit system, the address bus was 24 bits wide, for a physical address space of 16 Mbytes.
Is a single address space for storing both memory and I O devices?
Memory-mapped I/O uses the same address space to address both memory and I/O devices. The memory and registers of the I/O devices are mapped to (associated with) address values. So a memory address may refer to either a portion of physical RAM, or instead to memory of the I/O device.
What is MMIO register?
Memory Mapped IO or MMIO is the process of interacting with hardware devices by by reading from and writing to predefined memory addresses. A Register is a 4 byte piece of memory through that a peripheral can read from or write to. These registers are at predefined offsets from the peripheral’s base address.
Which memory unit has lowest access time?
Discussion Forum
| Que. | Which memory unit has the lowest access time? |
|---|---|
| b. | Registers |
| c. | Magnetic disk |
| d. | Main memory |
| Answer:Registers |
What is a 16 bit register Mcq?
D. It is a 16-bit register used to store the memory address location of the next instruction to be executed. Explanation: Program counter : It is a 16-bit register used to store the memory address location of the next instruction to be executed.
What is used to increase the apparent size of physical memory?
Virtual memory
What format is usually used to store data?
Discussion Forum
| Que. | The ______ format is usually used to store data . |
|---|---|
| b. | Decimal |
| c. | Hecadecimal |
| d. | Octal |
| Answer:BCD |
Which register is connected to the MUX?
Which register is connected to the MUX? Explanation: The MUX can either read the operand from the Y register or increment the PC.
Which method is more suitable for higher speed of I O transfer?
Discussion Forum
| Que. | The method which offers higher speeds of I/O transfers is |
|---|---|
| b. | Memory mapping |
| c. | Program-controlled I/O |
| d. | DMA |
| Answer:DMA |
Which one offers higher speeds of I O transfer is Mcq?
Right Answer is: D In DMA the I/O devices are directly allowed to interact with the memory without the intervention of the processor and the transfers take place in the form of blocks increasing the speed of operation.
What does I O controller do Mcq?
What does I/O controller do? Explanation: Keeps tracks of all devices. Program responsible for this task is known as the I/O controller. 8.