Description : 8096 write-protected mode, no code can write to memory address between __. a) 2020 to 3FFFH b) 8000 to FFFFH c) 2000 to 3FFFH d) 2020 to 202FH 17. If the __ pin is ___ , then we have the option ... b) EA, low, internal, external c) EA, high, external, internal d) EA, low, external, internal
Last Answer : c) EA, high, external, internal
Description : If the __ pin is ___ , then we have the option of using the ____ ROM or EPROM together with _____ memory and devices. a) EA, high, internal, external b) EA, low, internal, external c) EA, high, external, internal d) EA, low, external, internal
Last Answer : a) EA, high, internal, external
Description : Which pin of port 3 is has an alternative function as write control signal for external data memory? a) P3.8 b) P3.3 c) P3.6 d) P3.1
Last Answer : d) P3.1
Last Answer : c) P3.6
Description : In 8051 an external interrupt 1 vector address is of ________ and causes of interrupt if ____. a) 000BH, a high to low transition on pin INT1 b) 001BH, a low to high transition on pin INT1 c) 0013H, a high to low transition on pin INT1 d) 0023H, a low to high transition on pin INT1
Last Answer : a) 000BH, a high to low transition on pin INT1
Description : Which of the following memory medium is not used as main memory system? a. Magnetic core b. Semiconductor c. Magnetic tape d. Both a and b
Last Answer : c. Magnetic tape
Description : Which of the following is not computer language? a. High level language b. Medium level language c. Low level language d. All of the above
Last Answer : b. Medium level language
Description : When CS _____ the chip is not selected at all hence D7 to D0 are driven to high impedance state: a. High b. Low c. Medium d. Stand by
Last Answer : a. High
Description : In post-indexing the contents of the address field are used to access a memory location containing a___ address: Immediate addressing Direct addressing Register addressing ao | None of these
Last Answer : Direct addressing
Description : In ADC 0808 if _______ pin high enables output. a) EOC b) I/P0-I/P7 c) SOC d) OE
Last Answer : b) I/P0-I/P7
Description : The necessary steps carried out to perform the operation of accessing either memory or I/O Device, constitute a ___________________ a) fetch operation b) execute operation c) machine cycle
Last Answer : c) machine cycle
Description : The use of spooler programs and/or …. Hardware allows personal computer operators to do the processing work at the same time a printing operation is in progress a. Registered mails b. Memory c. CPU d. Buffer
Last Answer : d. Buffer
Description : The CPU removes the ___ signal to complete the memory write operation: a. Read b. Write c. Both A and B d. None of these
Last Answer : a. Read
Description : MOC stands for: a. Memory operation complex b. Micro operation complex c. Memory operation complete d. None of these
Last Answer : c. Memory operation complete
Description : The area of memory with addresses near zero are called: a. High memory b. Mid memory c. Memory d. Low memory
Last Answer : d. Low memory
Description : MSD stands for: a. Least significant digit b. Most significant digit c. Medium significant digit d. low significant digit
Last Answer : b. Most significant digit
Description : The left side of any binary number is called: a. Least significant digit b. Most significant digit c. Medium significant digit d. low significant digit
Description : The external device is connected to a pin called the ______ pin on the processor chip. a. Interrupt b. Transfer c. Both d. None of these
Last Answer : a. Interrupt
Description : standard I/O uses which control pin on the micro processor: a. IO/M
Last Answer : a. IO/M
Description : If ______input pin of 80386 if activated, allows address pipelining during 80386 bus cycles. a) BS16 b) NA c) PEREQ d) ADS
Last Answer : a) BS16
Description : SOD pin can drive a D flip-flop? a) SOD cannot drive any flip-flops. b) SOD cannot drive D flip-flop, but can drive any other flop-flops. c) Yes, SOD can drive D flop-flop. d) No, SOD cannot drive any other flop-flops except D flop-flop
Last Answer : b) SOD cannot drive D flip-flop, but can drive any other flop-flops
Description : __ bit in ICW1 indicates whether the 8259A is cascade mode or not? a) LTIM=0 b) LTIM=1 c) SNGL=0 d) SNGL=1
Last Answer : c) SNGL=0
Description : Easily reloctable language is a. Machine language b. Assembly language c. High level language d. Medium level language
Last Answer : b. Assembly language
Description : A compaction factor of 0.75 indicates ________workability [ A ] Very low [ B ] Low [ C ] Medium [ D ] High
Last Answer : [ A ] Very low
Description : The ALU of a computer normally contains a number of high speed storage element called a. Semiconductor memory b. Registers c. Hard disks d. Magnetic disk
Last Answer : b. Registers
Description : Mnemonic a memory trick is used in which of the following language? a. Machine language b. Assembly language c. High level language d. None of abov
Description : The growth of medium scale integration in______: a. Till 1971 b. Till 1970 c. Till 1972 d. Till 1969
Last Answer : a. Till 1971
Description : An IBM system/38 represents the computer class of: a. Small scale computer b. Medium scale computer c. Large scale computer d. Super computer
Last Answer : a. Small scale computer
Description : Which is an item of storage medium in the form of circular plate? a. Disk b. CPU c. Printer d. ALU
Last Answer : a. Disk
Description : A disk storage medium in the form of an assembly containing a single rigid magnetic disk permanently is a. Fixed disk b. Disk cartridge c. Card punch d. Card reader
Last Answer : b. Disk cartridge
Description : An output device that uses words or messages recorded on a magnetic medium to produce audio response is b. Magnetic tape c. Voice response unit d. Voice recognition unit e. Voice band
Last Answer : d. Voice recognition unit
Description : An IBM system/38 represents the computer class of: a. Small-scale computer b. Medium-scale computer c. Large-scale computer d. Super computer
Last Answer : a. Small-scale computer
Description : Magnetic disks are the most popular medium for a. Direct access b. Sequential access c. Both of above d. None of above
Last Answer : c. Both of above
Description : MSI stands for a. Medium Scale Integrated Circuits b. Medium System Integrated Circuits c. Medium Scale Intelligent Circuit d. Medium System Intelligent Circuit
Last Answer : b. Medium System Integrated Circuits
Description : Each instruction is also accompanied by a___ : a. Microprocessor b. Microcode c. Both d. None of these
Last Answer : b. Microcode
Description : Assembler is a___ a. Interpreter b. Translator c. Exchanger d. None of these
Last Answer : b. Translator
Description : In instruction formats instruction is represent by a___ _ of bits: a. Sequence b. Parallel c. Both d. None
Last Answer : a. Sequence
Description : In IEEE 802.11, a___ is made of stationary or mobile wireless stations and anoptional central base station, known as the access point (AP). A) ESS B) BSS C) CSS D) none of the above
Last Answer : BSS
Description : Control signals used for DMA operation are ____________
Last Answer : HOLD & HLDA.
Description : Who is the represents the fundamental process in the operation of the CPU: a. The fetch-execute cycle and pipelining b. The assembly c. Both A and B d. None of these
Last Answer : a. The fetch-execute cycle and pipelining
Description : A microporgram is sequencer perform the operation a. read b. write c. execute d. read and write e. read and execute
Last Answer : e. read and execute
Description : CPU does not perform the operation a. data transfer b. logic operation c. arithmetic operation d. all of above
Last Answer : b. logic operation
Description : The secondary storage devices can only store data but they cannot perform a. Arithmetic Operation b. Logic operation c. Fetch operations d. Either of the above
Last Answer : d. Either of the above
Description : Which operation is not performed by computer a. Inputting b. Processing c. Controlling d. Understanding
Last Answer : d. Understanding
Description : Which are the READ operation can in simple steps: a. Address b. Data c. Control d. All of these
Last Answer : d. All of these
Description : Which is the basic stack operation: a. PUSH b. POP c. BOTH A and B d. None of these
Last Answer : c. BOTH A and B
Description : Single address computer instruction has two parts: a. The operation code b. The operand c. A and B d. None of these
Last Answer : c. A and B
Description : To prevent another master from taking over the bus during a critical operation, the 486 can assert its _____signal. a) LOCK# or PLOCK# b) HOLD or BOFF c) HLDA d) HOLD
Last Answer : a) LOCK# or PLOCK#
Description : Virtual Mode Flag bit can be set using ____ instruction or any task switch operation only in the _____ mode a) IRET, Virtual b) POPF, Real c) IRET, protected d) POPF, protected
Last Answer : b) POPF, Real
Description : Which of the following statements on DRAM are correct? i) Page mode read operation is faster than RAS read. ii) RAS input remains active during column address strobe. iii) The row and column addresses are strobed into the ... RAS and CAS inputs respectively. a) i & iii b) i & ii c) all d) iii
Last Answer : d) iii