There are 60 seconds in a minute and 60 minutes in an hour. To find the total number of instructions the computer can perform in an hour, we need to multiply the number of instructions per second by the number of seconds in an hour.
Number of seconds in an hour = 60 seconds/minute × 60 minutes/hour = 3600 seconds/hour
Total number of instructions per hour = instructions per second × seconds per hour
= 4.66 × 10^8 instructions/second × 3600 seconds/hour
= 1.6776 × 10^12 instructions/hour
Therefore, the computer can perform 1.6776 x 10^12 instructions per hour.