Preparatory Guidebook for Comprehensive Examination

QUESTION BANKCOMPUTER ARCHITECTURE & ORGANIZATION

Addressing techniques attribute comes under a. Organizationb. Softwarec. Architectured. Both b & c

Hardwired systems area. Flexibleb. Easy to constructc. Inflexibled. Both b & c

The first bus structure named as a. System Busb. ISA busc. Omni busd. PCI bus

Auxiliary Carry is used in ____________ operationa. Binary to Decimal b. Binary to Hex c. Binary Coded Decimald. None of the above

To access a memory of 256 K MB, the address bus must have a. 18 address linesb. 19 address linesc. 20 address linesd. 21 address lines

Bus master is also calleda. Master CPUb. Arbitratorc. Bus controllerd. Both b & c

Tape is a type of Data Access methoda. Directb. Randoc. Sequentiald. Associative

For multiple CPUs with individual memories and cache it is calleda. L1 cacheb. L2 cachec. L3 cached. Both a & b

In cache mapping, cache misses is very high in

a. Direct Mappingb. Associative Mappingc. Set associative mappingd. Both a & b

In terms of speed which RAM is the fastest a. SRAMb. DRAMc. Double Data RAMd. Cache DRAM

The memory in which the data is written within the program while it is running is calleda. EPROMb. PROMc. EEPROMd. ROM

Which external memory device is the fastest in terms of speed?a. Floppy Driveb. CD drivec. Hard diskd. Tape drive

In Input Output techniques, the CPU spend most of its time ina. Programmed I/Ob. Interrupt Driven I/Oc. DMA d. Non of the above

___________ scheduling, determines which program are submitted for processing.a. Short term schedulingb. Long term schedulingc. Medium term schedulingd. Both b & a

Paging is a technique to managea. Programsb. OSc. Memoryd. Both b & c

Where does a computer add and compare data?

a. Hard diskb. Floppy disk

c. CPU chip

d. Memory chip

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 Registerb. Memory Data Register

c. Instruction Register

d. Program Register

A complete microcomputer system consists of

a. microprocessorb. memory

c. peripheral equipment

d. all of above

 CPU does not perform the operation

a. data transferb. logic operation

c. arithmetic operation

d. all of above

Pipelining strategy is called implement

a. instruction executionb. instruction prefects

c. instruction decoding

d. instruction manipulation

 A stack is

a. an 8-bit register in the microprocessorb. a 16-bit register in the microprocessor

c. a set of memory locations in R/WM reserved for storing information temporarily during the execution of computer

d. a 16-bit memory address stored in the program counter

 

A stack pointer is 

a. a 16-bit register in the microprocessor that indicate the beginning of the stack memory.b. a register that decodes and executes 16-bit arithmetic expression.

c. The first memory location where a subroutine address is stored.

d. a register in which flag bits are stored

The branch logic that provides decision making capabilities in the control unit is known as

a. controlled transferb. conditional transfer

c. unconditional transfer

d. none of above

 

Interrupts which are initiated by an instruction are

a. internalb. external

c. hardware

d. software

A time sharing system imply

a. more than one processor in the systemb. more than one program in memory

c. more than one memory in the system

d. None of above

 

Processors of all computers, whether micro, mini or mainframe must have 

a. ALUb. Primary Storage

c. Control unit

d. All of above

What is the control unit's function in the CPU?

a. To transfer data to primary storageb. to store program instruction

c. to perform logic operations

d. to decode program instruction

What is meant by a dedicated computer?

a. which is used by one person onlyb. which is assigned to one and only one task

c. which does one kind of software

d. which is meant for application software only

The most common addressing techniques employed by a CPU is

a. immediateb. direct

c. indirect

d. register

e. all of the above

 

Pipeline implement

a. fetch instructionb. decode instruction

c. fetch operand

d. calculate operand

e. execute instruction

f. all of above

 Which of the following code is used in present day computing was developed by IBM Corporation?

a. ASCIIb. Hollerith Code

c. Baudot code

d. EBCDIC code

 

When a subroutine is called, the address of the instruction following the CALL instructions stored in/on the

a. stack pointerb. accumulator

c. program counter

d. stack

 

A micro program written as string of 0's and 1's is a 

a. symbolic microinstructionb. binary microinstruction

c. symbolic micro program

d. binary micro program

Interrupts which are initiated by an instruction are

a. internalb. external

c. hardware

d. software

Memory access in RISC architecture is limited to instructions

a. CALL and RETb. PUSH and POP

c. STA and LDA

d. MOV and JMP

The ascending order or a data Hierarchy is 

a. bit - bytes - fields - record - file - database

b. bit - bytes - record - field - file - database

c. bytes - bit- field - record - file - database

d. bytes -bit - record - field - file - database

How many address lines are needed to address each memory locations in a 2048 x 4 memory chip?

a. 10

b. 11

c. 8

d. 12 

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 

In immediate addressing the operand is placed

a. in the CPU register

b. after OP code in the instruction

c. in memory

d. in stack 

Microprocessor 8085 can address location upto 

a. 32K

b. 128K

c. 64K

d. 1M

The ALU and control unit of most of the microcomputers are combined and manufacture on a single silicon chip. What is it called?

a. mono-chip

b. microprocessor

c. ALU

d. control unit 

When the RET instruction at the end of subroutine is executed,

a. the information where the stack is initialized is transferred to the stack pointer

b. the memory address of the RET instruction is transferred to the program counter

c. two data bytes stored in the top two locations of the stack are transferred to the program counter

d. two data bytes stored in the top two locations of the stack are transferred to the stack pointer

A microprogram is sequencer perform the operation  

a. read

b. write

c. execute

d. read and write

e. read and execute

Interrupts which are initiated by an I/O drive are

a. internal

b. external

c. software

d. all of above 

What is the numeric range of an eight bit unsigned binary number?0..71..80..2551..256

During what CPU cycle is an instruction moved from primary storage to the control unit?a. fetchb. executionc. accessd. refresh

When the control unit fetches an instruction from memory, it stores it in the ____.a. instruction pointerb. program status wordc. op coded. instruction register

In a computer an isolating circuit used to avoid any reaction of a driven circuit load on the corresponding driving circuit is known as(a) buffer(b) brand(c) bus(d) cell.

EPROM is erased by (a) red light (b) sodium light(c) ultra violet rays (d) infra-red rays.

Semi conductor memories are preferred because they are(a) volatile and of small size(b) non-volatile and of large size(c) non-volatile and of small size(d) easily magnetisable.

Which of the following statement is NOT correct?(a) Daisy wheel printers print one character at a time (b) Line printers take the same time to print a line irrespective of the number of characters printed(c) A 420 cars/sec dot matrix printer is faster than a 300 lines/min printer in printing a page of 132 columns (d) Dot matrix printers can produce a variety of graphic effects.

Which of the following does not produce records with visually-readable characters (a) line printer (b) matrix printer(c) punched tape (d) visual display unit.

In time division multiplexing(a) Time is doubled between bits of a byte(b) Time slicing at CPU level takes place(c) Total time available in the channel is divided between several users and each user is allotted a

time slice(d) None of the above.

Booting is a process in which,(a) User programs are brought into memory(b)I/O files are collected and organized on disk(c)A portion of the operating system is loaded into memory(d) None of the above.