There are 2 types of high-speed memory built into a CPU:
Registers - these are the fastest (and also the smallest) memory sets, they usually contain a single instruction, set of characters, an integer etc.
Cache - this is the biggest memory bank (usually up 4-8 megabytes on modern consumer CPUs) on a CPU, and will usually hold data values from the RAM that are most frequently accessed or are required for the current or upcoming computation being performed
Cache
The number of memory locations that can be directly accessed in a RAM chip depends on its size and architecture. For example, a 1 GB RAM chip typically has 2^30 (1,073,741,824) memory locations if each location holds 1 byte. The total number of directly accessible locations is determined by the addressing scheme, which is usually defined by the number of address lines in the chip.
Memory hold data that is been processed by the computer Memory also holds data that is waiting to be processed by the computer It also holds data that has been processed by the computer
Registers represent the number of memory locations. A 2K memory chip has 2x1024=2048 memory locations. Hence there are 2048 registers in a 2K memory.
A 14 bit address can specify 214 or 16,384 different locations.
Internal memory (RAM)
2^16 locations or 65,536 bytes
Yes, the CPU is directly addressable by the memory.
The data is held by RAM(random access memory) or primary memory when it's being processed.
RISC architectures generally have fewer instructions that operate directly on memory locations than CISC architectures. So, where a CISC machine will have instructions that operate directly on memory, in RISC this would be implemented as: Load from memory into register, do operation on register, store register back into memory. So a lot of the processing revolves around the Load-Store loop.
If a memory location stores one byte, then a kilobyte is made up of 1,000 locations.
Sensory memory is stored in different regions of the brain depending on the type of sensory information. For example, auditory sensory memory is primarily processed in the auditory cortex, while visual sensory memory is processed in the visual cortex.