Jeevani Jayawardena

Jeevani Jayawardena

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Multiple Choice1 MarkShared
Which part of the CPU is responsible for carrying out calculations?
(a).
CU
(b).
MAR
(c).
ALU
(d).
MDR
1302
Jeevani Jayawardena
Short Answer2 MarksShared
Outline the purpose of the Memory Data Register (MDR) in the central processing unit (CPU).
[2]
1292
Jeevani Jayawardena
Extended Response4 MarksShared
(a).
Identify differences in RAM and ROM in a PC
[4]
1300
Jeevani Jayawardena