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Data bus
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How does a hard disk connect to the memory and the CPU?
Via data communication channels called data buses and the motherboard.
How does CPU RAM ROM Input Output in a computer communicate?
Via the address/data/control busses.
Why the CPU execute faster than the input and output device?
The CPU is incredibly fast at executing data. The only problem is getting data to the CPU. This arduous task is carried out by the various buses - The control bus is a line which the CPU sends information about what device it wishes to communicate with The data bus carries the actual data The address bus carries memory locations. This means that the I/O device has to do the following: 1. Inform the CPU that it wishes to talk. (It does this via IRQ [Interrupt Request] channels) 2. The CPU will inform the device that it is ready to talk through the Control bus. 3. The device will set its' ready signal to 0, meaning that it is sending data, then it will put the data on the data bus. 4. The CPU will receive the data, storing it in registers. 5. The device, once it has finished, will set the ready line to 1. 6. The CPU will read and execute the data, performing whatever is necessary. 7. The CPU will inform the device that it has finished 8. Then, if necessary, the CPU will pass any data back along the data bus, setting the data bus ready line to 0. The main drawback is this: Only one device may use these buses at any one time. The CPU is far faster at doing the actual execution than it is to actually get all of the necessary instructions to the CPU. I hope that answered your question.
How do CPU transfer data from input to output?
The process of transferring data from input to output in a CPU (Central Processing Unit) involves several steps and components working together. Here's a simplified explanation of how this process typically occurs: 1. Input Devices: Data is first entered into the computer system through various input devices such as keyboards, mice, touchscreens, scanners, or network connections. These input devices convert physical actions or signals into digital data that the computer can process. 2. Input/Output Controller (IO Controller): Input data from devices may pass through an Input/Output Controller, which manages the communication between the CPU and the input/output devices. The IO Controller may handle tasks such as buffering data, converting signals, and coordinating data transfer between devices and memory. 3. Data Bus: The CPU communicates with other components of the computer system, including input/output devices, through a data bus. The data bus is a set of wires or pathways that allow data to be transferred between different components of the computer system. 4. Memory: Data may be temporarily stored in the computer's memory (RAM) before being processed by the CPU. This allows the CPU to quickly access the data it needs for processing. 5. CPU Processing: The CPU retrieves data from memory and performs various processing tasks on it, such as calculations, data manipulation, or executing instructions. The CPU contains registers, caches, and arithmetic logic units (ALUs) that facilitate these processing tasks. 6. Output Devices: Once processing is complete, the CPU sends the resulting data to output devices such as monitors, printers, speakers, or network interfaces. Output devices convert digital data into physical forms that are usable or understandable to humans. 7. Output Controller: Similar to the input/output controller, an output controller may manage the communication between the CPU and output devices, handling tasks such as data buffering, signal conversion, and coordination of data transfer. 8. Data Bus (again): The processed data is transferred from the CPU to the output devices via the data bus, allowing for communication between these components. Throughout this process, the CPU coordinates the transfer of data between input, memory, processing, and output components, ensuring that data is processed accurately and efficiently. The specific mechanisms and protocols used for data transfer may vary depending on the computer architecture and the types of input/output devices involved.
What is in a CPU?
A computer contains memory, input devices, output devices and a CPU , or Central Processing Unit.The CPU is the bit that executes the program. The program is a set of instructions written by a human. The CPU reads, interprets and carries out those instructions. It is truly the heart of the computer. The components of a computer system can be combined and permuted almost without limit.There is really just one limit; if the CPU is removed then it's not a computer anymore. Without the CPU there is nothing to send to the printer, nothing to read what is being typed on the keyboard, nothing to carry out the instructions in the program or even to know what the instructions were.What is in a CPU is quite easy to list, but would need a book to explain properly. A CPU containsa read only memory (ROM) containing some instructions for initial switch-onan address bus, which specifies a memory location to be read from or written toa main data bus, which carries data to or from memory.an instruction register, containing the instruction now being executedan address register containing the memory address wanted nextan instruction counter, keeping track of where the next instruction will be foundan arithmetic and logic unit (ALU) which does arithmetic and logical functionsan instruction decoder, which, working in conjunction with the microprogram unit containing another ROM, sorts out what is done when and by which unit.various units moving data to and from the outside world via an input/output busa clock and a clock-phase generator which ensures that different units work in sync.
How you make a dfd for online shopping?
DFD for online shopping refers to a data flow diagram. Such a diagram offers information pertaining to the activity between customers, sellers and visitors to an online store.
How do you enter instructions on PowerPoint?
You can enter instructions via the Text box. The text box can be inserted via the Insert in menu tab.
Is CPU an input device?
No not really, it's the brain. CPU is the Central processing Unit which receives input via input devices like keyboard, mouse , scanner, mic etc. It's main job is to process the input and send to the relevant o/p device. It controls the flow and process of instructions, in time with a clock pulse. It needs to handle both input and output of binary data.
What is the difference between swap and real memory?
Data that has been paged or swapped out exist on swap/page files on disks. The data can be paged or swapped back into real memory when it is required. Data in real memory (typically RAM) can be accessed directly by the CPU. Accessing data in real memory is hundreds or thousands times quicker than accessing it via disk.
How does data on the Internet travel?
sending data via nodes
What gives the CPU fast access to memory via the front side bus?
The Northbridge chipset
Explain how the system unit components communicate?
They communicate using data Busses using the Chipsets which are the North and South Bridge; the faster components such as the CPU, RAM and Accelerated Graphics Port are controlled by the Northbridge and it communicates to the CPU via the front side buss, the RAM via the Memory Buss and the Accelerated Graphics Port via the Graphics Buss.http://en.wikipedia.org/wiki/Northbridge_%28computing%29The Southbridge communicates to the Hard Disk via the ATA Buss, the USB, PCI and BIOS via the LPC Busses; you may find this opinion differs. the S-bridge may communicate to the PCI via the PCI Buss and the USB via the USB Buss.http://en.wikipedia.org/wiki/Southbridge_%28computing%29http://en.wikipedia.org/wiki/File:Schema_chipsatz.pngHOPE THIS HELPS :-)
