to 09: A 32 bits microprocessor has the word length equal (A) 2 bytes (B)1 bytes (C) 4 bytes (D) 8 bytes Q10: A microprocessor with 12 address lines is capable of addressing (A) 1024 locations (B) 2048 locations (C) 4096 locations (D) 64 k locations Q11: Which of the following is not a register? (A) buffer (B) stack (C) program counter (D) accumulator Q12: The heart of any computer is the (A) CPU (B) Memory (C)10 Unit (D) Disks Q13: A Computer consists of (A) a central processing unit (B) a memory (C) input and output units (D) all of these Q14: Which of the following is the fastest? (A) CPU (B) magnetic tapes and disks (C) video terminal (D) sensors, mechanical controllers Q15: The register which contains the instruction that is to executed is called (A) index register (B) instruction registers (C) memory address register (D) memory data register Q16: The register which keeps track of the execution of a program and which contains memory address of the instruction currently being executed is called (A) index register (B) memory address register (C) program counter (D) instruction registers