architecture of 8051

How many bits are in the program counter of 8051?

• a. 6 bits
• b. 8 bits
• c. 10 bits
• d. 12 bits

What is the width of the internal data memory?

• a. 256 bytes
• b. 512 bytes
• c. 1 KB
• d. 2 KB

What is the size of the 8051 stack?

• a. 4 bytes
• b. 8 bytes
• c. 16 bytes
• d. 32 bytes

Which memory space is used to store the code?

• a. External memory space
• b. Program memory space
• c. Data memory space
• d. Special function register space

Which register is used to control the input/output?

• a. Program counter (PC)
• b. Data pointer (DPTR)
• c. Status register (PSW)
• d. Port registers (P0, P1, P2, P3)