Which Of The Following Memory Provides The CPU Direct Access To Instructions And Data?

What is bus speed?

The speed of the bus, measured in megahertz (MHz), refers to how much data can move across the bus simultaneously.

Bus speed usually refers to the speed of the front side bus (FSB), which connects the CPU to the northbridge.

FSB speeds can range from 66 MHz to over 800 MHz..

What is the main function of computer in terms of memory CPU and I O unit?

In computer architecture, the combination of the CPU and main memory, to which the CPU can read or write directly using individual instructions, is considered the brain of a computer. Any transfer of information to or from the CPU/memory combo, for example by reading data from a disk drive, is considered I/O.

What memory does the CPU directly use?

RAM memoryPosted 2 years ago. Direct link to pamela ❤’s post “A desktop computer *has* RAM memory, as the runnin…” A desktop computer has RAM memory, as the running applications uses the RAM to store data temporarily. A desktop computer also has a CPU, input and output devices, and a hard drive (“secondary” memory).

What does the CPU use to process data?

The actual mathematical operation for each instruction is performed by a combinational logic circuit within the CPU’s processor known as the arithmetic logic unit or ALU. In general, a CPU executes an instruction by fetching it from memory, using its ALU to perform an operation, and then storing the result to memory.

Which is temporary memory RAM or ROM?

RAM, which stands for random access memory, and ROM, which stands for read-only memory, are both present in your computer. RAM is volatile memory that temporarily stores the files you are working on. ROM is non-volatile memory that permanently stores instructions for your computer. Find out more about RAM.

What is the purpose of system bus?

A system bus is a single computer bus that connects the major components of a computer system, combining the functions of a data bus to carry information, an address bus to determine where it should be sent, and a control bus to determine its operation.

What is held in cache memory?

Cache memory is the fastest system memory, required to keep up with the CPU as it fetches and executes instructions. The data most frequently used by the CPU is stored in cache memory. The fastest portion of the CPU cache is the register file, which contains multiple registers.

What is the relationship between RAM and CPU?

Relationship with the CPU RAM works in conjunction with the central processing unit (CPU). If RAM is the temporary memory, you can think of the CPU as the brain of the computer. The CPU chip retrieves data from the RAM.

How do the CPU and memory work together to process data?

The hardware that defines a computer is the CPU and memory . … The CPU and memory work together to run programs. CPU – executes programs using the fetch-decode-execute cycle. Memory – stores program operations and data while a program is being executed .

Which bus is used to carry instructions from memory to the CPU?

Address busThree types of bus are used. Address bus – carries memory addresses from the processor to other components such as primary storage and input/output devices. The address bus is unidirectional . Data bus – carries the data between the processor and other components.

What is the purpose of cache memory?

Cache memory temporarily stores information, data and programs that are commonly used by the CPU. When data is required, the CPU will automatically turn to cache memory in search of faster data access.

What is bus width?

Bus width refers to the number of bits that can be sent to the CPU simultaneously, and bus speed refers to the number of times a group of bits can be sent each second. A bus cycle occurs every time data travels from memory to the CPU. … Latency refers to the number of clock cycles needed to read a bit of information.