Question

a sequential access file has a fixed size of 25 byte records. What is the logical location of the first byte of record 5?

Answer 1

 

each record has 25B stored sequentially so,

if we start from address 0 (in decimal) then from

0-24  1^st record 

25-49 2^nd record

50-74 3^rd record

75-99 4^th record

100-124 5^th record

so first byte of 5^th record is at location 100 (01100100 in binary )

so logical address of first byte of 5^th record = 01100100.