Question 59

PINAT2 marksNeeds review
The computer centre (CC) in an institute manages the central server for which researchers queue to run their computer programs. CC processes programs only one at a time. Four computer programs are available at 10:00 am on a given day. The time required to run each program on the central server and their respective promised time of completion (i.e., due date) on that same day are given in the table. If the CC follows shortest processing time (SPT) rule to sequence the computer programs, the number of tardy jobs is _____. Note: Ignore program change-over times.
Program
1
2
3
4
Processing time (in minutes)
60
40
90
100
Promised time (i.e., due date)
12 noon
11:30 am
1:00 pm
1:30 pm

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2026PI

GATE PI 2026 · Paper 1

Production and Industrial Engineering · Original paper archive

Section
Production and Industrial Engineering
Question type
Numerical answer (NAT)
Marks
2 marks

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