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I've posted this question. In detail, how would you access the diagnostics on the master computer onboard the vehicle? The trouble code analyser accesses part of that area, then you clear the code and fix the part and away you go.......... I would like to analyse the engine as its running and be able to access that data from time to time.
What else can I help you with?
Is CPU needed to access internet?
A CPU is needed to do anything with a computer, including accessing the internet.
Temporarily holds data and instruction as the CPU processes them?
Random Access
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.
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.
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.
Why can't a CPU access data directly from the hard-drive?
A CPU cannot access data directly from the hard drive because of differences in speed and architecture. The CPU operates at much higher speeds than hard drives, which results in inefficiencies if they were directly connected. Instead, data must first be loaded into the system's RAM (Random Access Memory), which acts as an intermediary, allowing the CPU to access and process data more quickly. This hierarchical structure optimizes performance and ensures smooth operation of the system.
What is L1 cache?
Fast access memory which is inside the actual CPU chip.
How do you store data in CPU?
Data is not stored directly in the CPU; instead, it is processed in the CPU's registers, which are small, fast storage locations for immediate data manipulation. For longer-term storage, data is held in RAM (Random Access Memory) while the CPU is actively processing it. When the CPU needs to access data, it retrieves it from RAM or caches, which are faster memory layers close to the CPU. Non-volatile storage, like SSDs or HDDs, is used for permanent data storage when the system is powered off.
What is an l1?
L1 cache (i.e. Level 1 Cache)is the short memroy present with the CPU which stores the instructions or data in a queue for quick access for the CPU.
Why Direct memory access has priority over the CPU when both request a memory transfer?
we can transfer data direct to and from memory without the need of the CPU. The transfer of data between a fast storage device such as magnetic disk and memory is often limited by the speed of the CPU. Removing the CPU from the path and letting the peripheral device manager the memory buses directly would improve the speed of transfer. This transfer technique is called direct memory access(DMA). During DMA transfer, the CPU is idle and has no control of the memory buses. A DMA controller takes over the buses to manage the transfer directly between the I/O device and memory. With Regards. Veer Thakur. Chandigarh.
How are programs copied into the CPU for it to read?
Programs are copied into the CPU for it to read through a process called loading. Loading involves transferring the program's instructions from storage, such as a hard drive or memory, into the CPU's memory for execution. This allows the CPU to access and execute the program's instructions in the correct sequence.
What is the interaction of ROM and RAM with CPU?
ROM (Read-Only Memory) and RAM (Random Access Memory) interact with the CPU by providing different types of data storage. ROM contains permanent instructions essential for booting the system, while RAM provides temporary storage for data and programs that the CPU actively uses during operation. The CPU retrieves instructions and data from RAM for processing, and it may access ROM for essential firmware instructions if needed. This collaboration ensures that the CPU can execute tasks efficiently by utilizing the fast access speed of RAM and the stable data provided by ROM.
