MICROPROCESSOR AND MICROCONTROLLER

ICT

ARCHITECTURE OF 8085

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If your IBM S/360 was going to run the BOS/360 Operating System you would have been required to have purchased at least how much memory?
A
8 kilobytes
B
16 kilobytes
C
64 kilobytes
D
128 kilobytes
Explanation: 

Detailed explanation-1: -If your IBM S/360 was going to run the BOS/360 Operating System you would have been required to have purchased at least how much memory? 8K (less than the average cellphone 40 years later). This was the minimum central memory that was shipped with the low end S/360 systems.

Detailed explanation-2: -Instructions in the S/360 are two, four or six bytes in length, with the opcode in byte 0. Instructions have one of the following formats: RR (two bytes).

Detailed explanation-3: -IBM released three variants of OS/360: PCP (Primary Control Program), a stop-gap which could run only one job at a time, in 1966; MFT (Multiprogramming with Fixed number of Tasks) for the mid-range machines, and MVT (Multiprogramming with Variable number of Tasks) for the top end.

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