Friday, 20 November 2015

IBPS I.T. Officer Exam : Computers Architecture and Organization - 49 Questions and answers



Q1. Where does a computer add and compare data?
a) Hard Disk
b) Floppy Disk
c) CPU chip
d) Memory Chip
e) None of The Above
 
Q2. Processors of all computers, whether micro, mini or mainframe must have:
a) ALU
b) Primary Storage
c) Control Unit
d) All of The Above
e) None of The Above

Q3. A collection of eight bit is called:
a) Byte         
b) Word
c) Record
d) File
e) None of The Above

Q4. The basic components of a modern digital computer are:
a) Input Device
b) Output Device
c) Central Processor
d) All of The Above
e) None of The Above

Q5. Group of instructions that directs a computer is called:
a) Storage
b) Memory
c) Logic
d) Program
e) None of The Above

Q6. Which kind of devices allows the user to add components and capabilities to a computer system?
a) System Boards
b) Storage Devices
c) Input Devices
d) Output Devices
e) Expansion Slots

Q7. Which kind of storage device can be carried around?
a) Floppy Disk
b) Hard Disk
c) System Cabinet
d) Hard Disk Drive
e) Floppy Disk Drive


Q8. Which is the most powerful type of computers?
a) Micro Computer
b) Mini Computer
c) Mainframe Computer
d) Super Computer
e) Super Conductor

Q9. Which is not true for primary storage?
a) Information must be transferred to primary storage
b) It is relatively move expensive data
c) It is a part of the CPU
d) All of The Above
e) None of The Above

Q10. Which is not a factor when categorizing a computer?
a) Speed of the output device
b) Amount of main memory the CPU can use
c) Cost of the system
d) Capacity of the Hard Disk
e) Where it was purchased


Q11. The most common input device used today is:
a) Motherboard
b) Track Ball
c) Scanner
d) Mouse
e) Keyboard

Q12. What is the control unit’s function in the CPU?
a) To transfer data to primary storage
b) To store program instruction
c) To perform logic operations
d) To decode program instructions
e) None of The Above

Q13. The ascending order of a data hierarchy is:
a) Bit – bytes – field – record – file – database
b) Bit – bytes – record – field – file – database
c) Bytes – bit – field – record – file – database
d) Bytes – bit – record – field – file – database
e) None of The Above

Q14. Which is not an input device?
a) CRT (Cathode Ray Tube)
b) Optical Scanners
c) Voice Recognition
d) COM (Computer Output Micro Film)
e) None of The Above


Q15. The Central Processing Unit (CPU) consists of:
a) Input, Output and Processing
b) Control Unit, Primary Storage and Secondary Storage
c) Control Unit, Arithmetic – Logic Unit and Primary Storage
d) Control Unit, Processing, Primary Storage
e) None of The Above

Q16. The heart of any computer is the
a) CPU
b) Memory
c) I/O Unit
d) Disks
e) None of The Above

Q17. Super computers are primarily useful for:
a) Input – output intensive processing
b) Data – retrieval operations
c) Mathematical – intensive scientific applications
d) All of the Above
e) None of The Above

Q18. The unit of a computer system that executes program, communicates with and often controls the operation of other subsystems of the computer is known as:
a) CPU
b) Control Unit
c) I/O Unit
d) Peripheral Unit
e) None of The Above

Q19. In which addressing mode, the effective address of the operand is generated by adding a constant value to the contents of a register?
a) Absolute mode
b) Indirect mode
c) Immediate mode
d) Index mode
e) None of The Above

Q20. Which of the following registers is loaded with the contents of the memory location pointed by the PC?
a) Memory Address Registers
b) Memory Data Register
c) Instruction Register
d) Program Counter
e) None of The Above

Q21. Which of the following registers is used to keep track of address of the memory location where the next instruction is located?
a) Memory Address Register
b) Memory Data Register
c) Instruction Register
d) Program
e) None of The Above

Q22. The stack pointer in the 8085 microprocessor is a:
a) 16 bit register that points to stack memory locations
b) 16 bit accumulator
c) Memory location in the stack
d) Flag register used for the stack
e) None of The Above

Q23. How many address lines are needed to address each memory location in a 2048 X 4 memory chip? a) 10
b) 11
c) 8
d) 12
e) None of The Above

Q24. A computer has no more sense than a light:
a) Bulb
b) Pen
c) Switch
d) Pad
e) None of The Above

Q25. Most of the inexpensive personal computers do not have any disk or diskette drive. What is the name of such computers?
a) Home Computers
b) Diskettes Computers
c) Dedicated Computers
d) General – Purpose Computers
e) None of The Above

Q26. A computer enthusiast is:
a) User friendly
b) A Hacker
c) A Computerist
d) All of The Above
e) None of The Above

Q27. Which of the following require large computer memory?
a) Imaging
b) Graphics
c) Voice
d) All of The Above
e) None of The Above

Q28. Which of the following require large computer memory?
a) Minicomputer
b) Laptop Computer
c) Notebook Computer
d) All of The Above
e) None of The Above

Q29. The word size of a microprocessor refers to:
a) The amount of a information that can be stored in a byte
b) The amount of a information that can be stored in a cycle
c) The number of machine operations performed in a second
d) The maximum length of an English word that can be input to a computer
e) None of The Above

Q30. Which major development led to the production of microcomputers?
a) Magnetic Disks
b) Floppy Disks
c) Logic Gates
d) Integrated Circuits
e) None of The Above

Q31. A complete microcomputer system consists of:
a) Microprocessor
b) Memory
c) Peripheral Equipment
d) All of The Above
e) None of The Above

Q32. What is meant by a dedicated computer?
a) Which is used by one person only
b) Which is assigned one and only task
c) Which does on kind of software
d) Which is meant for application software only
e) None of The Above

Q33. A computer program that converts an entire program into machine language at one time is called a/an:
a) Interpreter
b) Simulator
c) Compiler
d) Commander
e) None of The Above

Q34. Who coordinates the sequencing of events within the central processing of a computer?
a) Logic Unit
b) Arithmetic Unit
c) Register
d) Control Unit
e) None of The Above

Q35. The microprocessor of a computer can’t operate on any information if that information is not in its: a) Secondary Storage
b) Main Storage
c) ALU
d) Logic Unit
e) None of The Above

Q36. The ALU of a computer responds to the commands coming from:
a) Primary Memory
b) Control Section
c) External Memory
d) Cache Memory
e) None of The Above

Q37. Which type of computers use the 8 bit code called EBCDIC?
a) Minicomputers
b) Microcomputers
c) Mainframe
d) Supercomputers
e) None of The Above

Q38. The ALU of a central processing unit does the essential math work for the computer. What does the control unit do?
a) Communicates its results
b) Activates the output device
c) Monitors the flow of information
d) Control the Printer
e) None of The Above

Q39. Arithmetic instructions provide:
a) Data processing capabilities
b) Data storage Capabilities
c) Computational capabilities
d) Control Capabilities
e) None of The Above

Q40. Branch Instructions are used to:
a) Manipulate numeric data
b) Logical data
c) Transfer control
d) Manage data
e) None of The Above

Q41. CPU does not perform the operation
a) Data transfer
b) Logic operation
c) Arithmetic operation
d) Conversion
e) All of The Above

Q42. The most common addressing techniques employed by a CPU is:
a) Immediate
b) Direct
c) Indirect
d) Register
e) All of The Above

Q43. In immediate addressing the operand is placed:
a) In the CPU register
b) After opcode in the instruction
c) In the memory
d) In the stack
e) None of The Above

Q44. The register are essential to instruction execution:
a) Program counter
b) Instruction register
c) Memory address
d) Memory buffer register
e) All of The Above

Q45. Micro Instructions are stored in the:
a) Internal Storage
b) External Storage
c) Cache
d) Control Memory
e) All of The Above

Q46. Control unit operation is performed:
a) Hardwired control only
b) Micro program control only
c) Hardwired or micro program control
d) All of The Above
e) None of The Above

Q47. Hardwired control unit is implemented by:
a) Software routines
b) Logic circuits
c) Stacks
d) Registers
e) None of The Above

Q48. Micro Instructions are stored in:
a) Computer memory
b) Primary storage
c) Secondary storage
d) Control memory
e) Cache memory

Q49. Pipeline processing uses the technique:
a) Sharing the memory
b) Bit slicing
c) Prefetching
d) Parallel Processing
e) All of The Above

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