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An accumulator machine, also called a single accumulator organisation , or a CPU with accumulator-based architecture, is a kind of CPU where, although it may have several registers, the CPU mostly stores the results of calculations in one special register, typically called "the accumulator". Historically almost all early computers were accumulator machines; and many microcontrollers still popular as of 2010
Elise Greenholt
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What are different types of CPU organizations?
thay are ...1.One bus org 2.two bus org 3. 3 bus org
Advantages of an Accumulator based CPU?
[1] the accumulator is meant to be an operand. so there is no requirement for the operand address field for one operand in the instruction. this results in short of CPU supports zero address instructions. Normally CPUs have two types of instructions:1)zero address2)single addressthe single address instruction have one operand in main memory and the other in accumulator.[2] instruction cycle takes less time. it saves time in instruction fetching due to the absence of operand fetching due to the absence of operand fetch.
Explain following organization of CPU- A. single accumulator organization B. general registers organization c. stack organization?
a stack can be considered as a storage method in which then items are stored in consecutive memory loacations and the last element stored is the first element retrived ,also calles LIFO(last in First Out)list. you can visulise a stack as the number of plates placed one avove the other,when you want to place a new plate.you will place on the top of the reamining plates,when you want to withdraw a plate,you will out of the topmost plate first,that is the plate last kept is the first taken out or last in first out ,
How many bits are contained in the A register of a 8085 CPU?
8085 is a 8 bit microprocessor and so A register which is also known as accumulator is also 8 bit.
What is true when purchasing a motherboard with a multiple CPU socket?
It is more expensive than a single CPU socket motherboard
When was Swaziland Single Mothers Organization created?
Swaziland Single Mothers Organization was created in 2009.
What do you have when two processors are combined into a single CPU together?
its,compounds
How many threads can be run on a single CPU pipeline?
5
What is an accumulator?
In computers an accumulator is a dedicated single purpose register in which arithmetic operations are performed. They cannot be used for addressing memory or any other purpose than arithmetic. Different computers have different quantities of accumulators, from none to a few dozen depending on the architecture.
Can you multitask with a single CPU?
No you literally can not multitask with a single CPU, since one CPU can only process one task at a time, because with your 32-bit and 64-bit OS the OS allots CPU time to the application for a specific time then the OS preempts the processing to give the CPU to another application, the programs may appear to be multitasking but they are not, that is called preemptive multitasking.
What is a single-processor motherboard?
It should be self-evident. It's a motherboard capable of supporting a single CPU.
Briefly explain why a CPU requires a number of clock cycles to carry out a single instruction?
A CPU requires a number of clock cycles to carry out a single instruction because the CPU is a state machine, and each state transistion is often a clock cycle. That's the brief answer. Expanding slightly...For instance, the 8085 requires three clock cycles to read or write one byte to or from memory or IO. It then requires one clock cycle to decode and execute the opcode. It requires three additional cycles for each further byte transferred, and sometimes two cycles for certain 16 bit register operations.At a lower level, more generalized for any type of CPU, it might take a clock cycle to load the accumulator with a register, another to add the accumulator to another register, and a third to store the accumulator back to the first register. That's just an example. It depends on the CPU's design.Internally, each clock cycle in the 8085 is actually two cycles with four edges between them. Without knowing Intel's internal design of the 8085, it is possible to think that four different state changes could occur for each external clock cycle. One could take this further, by introducing delay lines which could effect other state changes.
