Storage. Main Memory Secondary Memory Different speeds Magnetic Media Optical Media Access Modes . A Computer System . As we already know a computer system is made up of different components such as; the CPU, input devices, output devices, storage devices and others.
Arithmetic Logic Unit,
Magnetic storage uses magnetic charges to store data. The presence of a magnetic spot represents a 1, whilst the absence represents a 0.
Write Protect Tab
Data Access Methods
Optical devices use laser beams to store data. Data is stored on these devices by using laser beams and their reflective properties.
Since there is a land the laser is reflected and received by the laser picks-up data
In this case since there is a pit, the laser is not reflected back so no data is picked up.