A logical unit of data is a virtual representation of data while a physical unit of data is the actual storage of data on a physical device. The logical unit of data is how data is organized and manipulated from a software perspective, while the physical unit of data is how data is stored on hardware such as disks or memory.
The basic function of memory is to store information.
A unit of memory or data equal to 1,024 (210) bytes.
A unit of memory or data equal to 1,024 (210) bytes.
MAIN MEMORY
These are located in the system unit or processing unit.
MAR (Memory Address Register) holds the address of the memory location to be accessed or written to in the memory unit, whereas MDR (Memory Data Register) holds the actual data that is to be written to a memory location or data read from a memory location. MAR is used to specify the address, while MDR is used to temporarily store the data during memory operations.
this is simply defined as a unit of memory or data equal to approximately 1,000,000,000,000,000,000,000 bytes
the main memory is the central storage unit of the computer system. it is relatively large and fast memory used 2 store the programs and data during the computer operation.main memory communicates directly with the CPU. main memory includes RAM and ROMs. devices that provide backup storage are known as auxillary memory. auxillary memory are relatively slow in comparision to the main memory. auxillary memory includes flash memory,magntic disks and floppys. main memory is located inside the CPU but auxillary memory is located out the CPU. the main memory is the central storage unit of the computer system. it is relatively large and fast memory used 2 store the programs and data during the computer operation.main memory communicates directly with the CPU. main memory includes RAM and ROMs. devices that provide backup storage are known as auxillary memory. auxillary memory are relatively slow in comparision to the main memory. auxillary memory includes flash memory,magntic disks and floppys. main memory is located inside the CPU but auxillary memory is located out the CPU.
von neumann is the of person who first time notice data and instruction can resides in a single memory. he proposed that there should be a unit performing arithmetic and logical operation on data. these unit termed as arithmetic- logic unit He also gave another concept regarding logic components and their connection in specific fashion. All the components should be control by control unit. The memory unit stores all the information in a group of memory cell,also called memory location where data and instruction can resides in binary form
The components that process data are located in the system unit
System unit