It doesnt.
it is possible to find the speed of the CD drive by reading a certain ammount of data and timing how long it takes, then a simple set of arithmatic performed by the CPU can tell you how fast the CD drive can read the data.
The CD ROM does not have any affect on the speed of the CPU or the speed of the Frontside Bus. The CPU and Frontside Bus is what carries data and the CD ROM is not connected nor involved with the speed of the computer.
used toave data
Here is the actual question: Explain the role of each of the following in determining the speed of a computer: CD Rom
ROM is Random Only Memory. Though, with difficulty ROM data can be changed, the ROM usually holds the data used to cause boot up a computer and is placed there by the manufacture.
with out that devices we can not read the data
It shouldn't affect the ROM - ROM stands for Read Only Memory. The data in the ROM was written at the manufacturing stage of the computer, and viruses shouldn't be able to affect it.
Rom is a non-volatile memory. A computer system needs it because it stores the data permanently. If there is no ROM the data can be stored only until the system is on. Once the system is off, all the data stored in RAM(volatile memory) will be lost. So, ROM is used to store the data for a desired period of time.
ROM
Read Only Memory can be found on computer hardware like motherboards and processors. ROM is used to store data that does not to be changed in the normal running of a computer.
ROM isn't erased when you turn the power off, whereas RAM is.
A computer accesses ROM (Read-Only Memory) when it needs to retrieve essential instructions and data during the startup process or when performing basic functions.
Read-only memory (ROM) in a computer is a type of non-volatile memory that stores data permanently and cannot be easily modified or erased. Unlike random-access memory (RAM) which is volatile and temporary, ROM retains its data even when the computer is turned off. ROM is typically used to store essential system software and firmware that is necessary for the computer to function properly.