COMPUTER SCIENCE AND ENGINEERING
COMPUTER ARCHITECTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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CPU sets up the data bus by placing the value to be written in the Memory Data Register
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The control unit activates the write line on the control bus
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CPU sets up the address bus by placing the required memory address in the Memory Address Register
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The contents of the MDR are transferred to the required storage location in memory
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Detailed explanation-1: -It is the most basic CPU operation, and modern CPUs are able to perform millions of machine cycles per second. The cycle consists of three standard steps: fetch, decode and execute. In some cases, store is also incorporated into the cycle.
Detailed explanation-2: -1. Basic Memory Operations. The memory unit supports two basic operations: read and write. The read operation reads previously stored data and the write operation stores a new value in memory. Both of these operations require a memory address.
Detailed explanation-3: -CPU has registers to store the data of output. Sending to main memory(RAM) would be slow as it is the intermediate data. This data is send to other register which is connected by a BUS. A register can store instruction, output data, storage address or any kind of data.
Detailed explanation-4: -CPU Operations The four primary functions of a processor are fetch, decode, execute and write back. Fetch-is the operation which receives instructions from program memory from a systems RAM.