sequential access memory การใช้

While sequential access memory is read in sequence, arbitrary locations can still be accessed by " seeking " to the requested location.
Magnetic storage media can be classified as either sequential access memory or random access memory, although in some cases the distinction is not perfectly clear.
Magnetic sequential access memory is typically used for secondary storage in general-purpose computers due to their higher density at lower cost compared to RAM, as well as resistance to wear and non-volatility.
This made manual multiplication easier, as one needed to follow two parallel columns ( instead of a vertical column and a horizontal row in the matrix notation . ) It also sped up computer calculations, because both factors'elements were used in a similar order, which was more compatible with the sequential access memory in computers of those times mostly magnetic tape memory and drum memory.