A. RAM
B. ROM
C. USB Drive
D. Floppy Disk

Solution

A. RAM

Explanation

Primary memory, also known as RAM (Random Access Memory), is a type of computer memory that is used to store data and machine code currently being used and processed by a computer. Here are some examples of primary memory in a computer:

• DRAM (Dynamic Random Access Memory):
• SRAM (Static Random Access Memory):
• DDR SDRAM (Double Data Rate Synchronous Dynamic Random Access Memory):
• Cache Memory:
• Flash Memory:
• Registers:
• etc