Dear ,you should ask it on stackoverflow and geekforgeelks , not here
A, S, D, F, G, H, J, K, L, <semi colon ( ; ) and apostrophe ( ' ) as the last two on the right, in front of enter>
Answer:
b. Thin provisioning
Explanation:
Thin provisioning is a storage space feature that makes allocating disk storage space flexible based on the space needed by each user, it improves the way storage space is utilized.
Characteristics
based on vaccum tubes
they were large,slow,low capacity
Magnetic drums for primary memory
used mll
input punched cards and output printsout
expensive
get heated faster
eg. ENIAC,UNIVAC
