MCQ 1 How many types of architectures are available, for designing a device that is able to work on its own?

(A) 3 (B) 2 (C) 1 (D) 4

MCQ 2 The communication between the components in a microcomputer takes place via the address and

(A) I/O bus (B) Data bus (C) Address bus (D) Control lines

MCQ 3 An interface that provides I/O transfer of data directly to and form the memory unit and peripheral is termed as

(A) DDA (B) Serial interface (C) BR (D) DMA

MCQ 4 UNIVAC is

(A) Universal Automatic Computer (B) Universal Array Computer (C) Unique Automatic Computer (D) Unvalued Automatic Computer

MCQ 5 The ALU of a computer responds to the commands coming from

(A) Primary memory (B) Control section (C) External memory (D) Cache memory

MCQ 6 How many address lines are needed to address each machine location in a 2048 x 4 memory chip?

(A) 10 (B) 11 (C) 8 (D) 12

MCQ 7 A register organized to allow to move left or right operations is called a ____

(A) Counter (B) Loader (C) Adder (D) Shift register

MCQ 8 Which is used for manufacturing chips?

(A) Bus (B) Control unit (C) Semiconductors (D) A and b only

MCQ 9 The memory address of fifth element of an array can be calculated by the formula

(A) LOC(Array[5] = Base(Array) + w(5 - lower bound), where w is the number of words per memory cell for the array (B) LOC(Array[5]) = Base(Array[5]) + (5 - lower bound), where w is the number of words per memory cell for the array (C) LOC(Array[5]) = Base(Array[4]) + (5 - Upper bound), where w is the number of words per memory cell for the array (D) None of the above

MCQ 10 Which architecture is followed by general purpose microprocessors?

(A) Harvard architecture (B) Von Neumann architecture (C) None of the mentioned (D) All of the mentioned

MCQ 11 A set of information that defines the status of resources allocated to a process is

(A) Process control (B) ALU (C) Register Unit (D) Process description

MCQ 12 _________ register keeps tracks of the instructions stored in program stored in memory.

(A) AR (Address Register) (B) XR (Index Register) (C) PC (Program Counter) (D) AC (Accumulator)

MCQ 13 A register capable of shifting its binary information either to the right or the left is called a

(A) parallel register (B) serial register (C) shift register (D) storage register

MCQ 14 The general categories of instructions' operation are

(A) Data transfer (B) Arithmetic logical (C) floating point (D) All of the above

MCQ 15 Computer register which is used to keep track of address of the memory location where the next instruction is located is

(A) memory address register (B) memory data register (C) instruction register (D) program counter

MCQ 16 After the completion of the DMA transfer, the processor is notified by __________

(A) Acknowledge signal (B) Interrupt signal (C) WMFC signal (D) None of the mentioned

MCQ 17 What type of memory is typically used for storing computer BIOS code?

(A) DRAM (B) SRAM (C) RAM (D) ROM

MCQ 18 Temporary storage area within CPU is called

(A) register (B) ROM (C) RAM (D) ALU

MCQ 19 In an instruction, address part points to the address of the actual data, than the address mode is

(A) immediate addressing (B) direct addressing (C) indirect addressing (D) stack addressing

MCQ 20 The term 'computer architecture' is sometimes referred only to

(A) Instruction set design (B) Circuit design (C) Hardware design (D) Pipelining

MCQ 21 An integrated circuit is

(A) A complicated circuit (B) An integrating device (C) Much costlier than a single transistor (D) Fabricated on a tiny silicon chip

MCQ 22 In which of these modes, the immediate operand is included in the instruction itself?

(A) register operand mode (B) immediate operand mode (C) register and immediate operand mode (D) None of the above

MCQ 23 In which of the following addressing mode, the offset is obtained by adding displacement, with the contents of SI?

(A) direct mode (B) register mode (C) based mode (D) indexed mode

MCQ 24 In computer, size of DI, SI, SP and BP stack control register is

(A) 2 bytes each (B) 6 bytes each (C) 4 bytes each (D) 8 bytes each

MCQ 25 Addressing mode used in an instruction of the form ADD X, Y, is

(A) absolute (B) immediate (C) indirect (D) index