Mechanical and electric equipment
The function of RAM is to store data in the form of files for processing by a computer's central processing unit (CPU), also known as the processor.
ROM is used for holding instructions which are needed to start up the computer
The Function of ALU is used to indicate what to do with the inputs.
The ControL Units can be thought of as the brain of the CPU itself.
Regiaster Temporarys storage space on the CPU that can be accessed very quickly.
Cache is used for saving data in the local file system for subsequent use, such as in situations where access to the data is over a low bandwidth link, or the access is not available at all.
Program and data
Physical Units attached to the computer
The function of Monitor is to screen is a visual display unit.
keyboard is used to input data which is connected to a computer and used to type instructions or information into the computer
Speaker gives the user auditory feedback regarding the state of the computer.
Mouse is used for controling the location of a cursor on a video display connected to the computer
Monitor displays images generated by devices such as computers, without producing a permanent record.
Pronter is used to produce what we computer geeks call a "Hardcopy".
Microphone is used for converting sound into signals that can then be stored, manipulated, and played back by the computer.