Description : Which of following requires refreshing? (A) SRAM. (B) DRAM. (C) ROM. (D) EPROM.
Last Answer : (B) DRAM
Description : Which of the following memories need refresh? A) SRAM B) DRAM C) ROM D) All of the above
Last Answer : Answer : B
Description : Which of the following memories needs refresh? A) SRAM B) DRAM C) ROM D) All of above
Description : Which of the following memories needs refreshing? A) SRAM B) DRAM C) ROM D) All of above
Description : Which memory does not use capacitor in its memory cell? A. SRAM B. DRAM C. ROM D. None of the Above
Last Answer : A. SRAM
Description : Which of the following memories uses a MOS capacitor as its memory cell? A. SRAM B. DRAM C. ROM D. FIFO
Last Answer : B. DRAM
Description : Which of the following memories needs refreshing? a. SRAM b. DRAM c. ROM d. All of above
Last Answer : DRAM
Last Answer : a. SRAM
Description : Access time is faster for a) ROM b) SRAM c) DRAM
Last Answer : b) SRAM
Description : Which of the following computer memories is non-volatile ? (1) DRAM (2) SRAM (3) ROM (4) RAM
Last Answer : ROM
Description : Which term is used to describe RAM? A) Dynamic RAM (DRAM) B) Static RAM (SRAM) C) Video RAM (VRAM) D) All of the above
Last Answer : Answer : D
Description : Which of the following is used in main memory? a) SRAM b) DRAM c) PRAM d) DDR
Last Answer : Answer: b Explanation: DRAM stands for dynamic random access memory. It is denser than SDRAM (Static) and therefore it is used in the main memory. They are in the form of semiconductor RAMs
Description : Which of the following is the user programmed semiconductor memory? A. SRAM B. DRAM C. EPROM D. None of the Above
Last Answer : C. EPROM
Description : Which of the following is clock-synchronized RAM that is used for video memory? A. DRAM B. SRAM C. SGRAM D. None of the Above
Last Answer : C. SGRAM (Synchronous Graphics RAM)
Description : Which of the following is a type of RAM used specifically for video adapters or 3D accelerators? A. DRAM B. SRAM C. SGRAM D. VRAM
Last Answer : D. VRAM (Video RAM)
Description : Which of the following memory chip is faster? A. DRAM B. SRAM C. Both (A) and (B) D. None of the Above
Last Answer : B. SRAM
Description : _______is not as fast as SRAM but is cheaper and is used for main memory. Each bit uses a single capacitor and single transistor circuit.: a) DRAM b) SDRAM c) Both of Above d) None of These
Last Answer : a) DRAM
Description : ______ is the fastest form of RAM but also the most expensive. Due to its cost it is not used as main memory but rather for cache memory: a) SRAM b) DRAM c) SDRAM d) None of These
Last Answer : a) SRAM
Description : Which term is used to describe RAM? a. Dynamic RAM (DRAM) b. Static RAM (SRAM) c. Video RAM (VRAM) d. All of the above
Last Answer : d. All of the above
Description : The information in ROM is stored (A) By the user any number of times. (B) By the manufacturer during fabrication of the device. (C) By the user using ultraviolet light. (D) By the user once and only once.
Last Answer : (B) By the manufacturer during fabrication of the device.
Description : The process of entering data into a ROM is called (A) burning in the ROM (B) programming the ROM (C) changing the ROM (D) charging the ROM
Last Answer : Ans: B The process of entering data into ROM is known as programming the ROM.
Description : The access time of ROM using bipolar transistors is about (A) 1 sec (B) 1 msec (C) 1 µsec (D) 1 nsec.
Last Answer : Ans: C The access time of ROM using bipolar transistors is about 1 µ sec.
Description : Which of the memory is volatile memory (A) ROM (B) RAM (C) PROM (D) EEPROM
Last Answer : Ans: B RAM is a volatile memory (Volatile memory means the contents of the RAM get erased as soon as the power goes off.)
Description : _________is a copy of Basic Input/Output Operating System (BIOS) routines from Read Only Memory (ROM) into a special area of RAM so that they can be accessed more quickly. A. Dynamic RAM B. Shadow RAM C. Synchronous Graphics RAM D. Video RAM
Last Answer : B. Shadow RAM
Description : You will use _____between main memory & registers to hide "slow" DRAM: a) RAM b) Cache c) ROM d) None of These
Last Answer : RAM
Description : _______ is a method of storing data bits using magnetic charges instead of the electrical charges used by DRAM. A. VRAM B. WRAM C. MRAM D. None of the above
Last Answer : C. MRAM Magneto resistive RAM
Description : Define Asynchronous sequential circuit?
Last Answer : In asynchronous sequential circuits change in input signals can affect memory element at any instant of time.
Description : Define synchronous sequential circuit
Last Answer : In synchronous sequential circuits, signals can affect the memory elements only at discrete instant of time.
Description : What are the different types of shift type?
Last Answer : There are five types. They are, Serial In Serial Out Shift Register Serial In Parallel Out Shift Register Parallel In Serial Out Shift Register Parallel In Parallel Out Shift Register Bidirectional Shift Register
Description : Define shift registers.
Last Answer : The binary information in a register can be moved from stage to stage within the register or into or out of the register upon application of clock ... arithmetic and logic operations used in microprocessors. This gives rise to group of registers called shift registers.
Description : Define registers.
Last Answer : A register is a group of flip-flops flip-flop can store one bit information. So an n-bit register has a group of n flip-flops and is capable of storing any binary information/number containing n-bits.
Description : What is a master-slave flip-flop?
Last Answer : A master-slave flip-flop consists of two flip-flops where one circuit serves as a master and the other as a slave.
Description : What is edge-triggered flip-flop?
Last Answer : The problem of race around condition can solved by edge triggering flip flop. The term edge triggering means that the flip-flop changes state either at the positive ... negative edge of the clock pulse and it is sensitive to its inputs only at this transition of the clock.
Description : Define race around condition.
Last Answer : In JK flip-flop output is fed back to the input. Therefore change in the output results change in the input. Due to this in the positive half of the clock pulse if both J and K are high then output toggles continuously. This condition iscalled ‘race around condition’.
Description : What is the operation of T flip-flop?
Last Answer : T flip-flop is also known as Toggle flip-flop. • When T=0 there is no change in the output. • When T=1 the output switch to the complement state (ie) the output toggles.
Description : What is the operation of JK flip-flop?
Last Answer : When K input is low and J input is high the Q output of flip-flop is set. When K input is high and J input is low the Q output of flip-flop is reset. When both the inputs ... are high it is possible to set or reset the flip-flop (ie) the output toggle on the next positive clock edge.
Description : What is the operation of D flip-flop?
Last Answer : In D flip-flop during the occurrence of clock pulse if D=1, the output Q is set and if D=0, the output is reset.
Description : What are the different types of flip-flop?
Last Answer : There are various types of flip flops. Some of them are mentioned below they are, RS flip-flop SR flip-flop D flip-flop JK flip-flop T flip-flop
Description : Define Flip flop.
Last Answer : The basic unit for storage is flip flop. A flip-flop maintains its output state either at 1 or 0 until directed by an input signal to change its state.
Description : What are the classification of sequential circuits?
Last Answer : The sequential circuits are classified on the basis of timing of their signals into two types. They are, 1)Synchronous sequential circuit. 2)Asynchronous sequential circuit.
Description : What do you mean by comparator
Last Answer : A comparator is a special combinational circuit designed primarily to compare the relative magnitude of two binary numbers.
Description : Define multiplexer
Last Answer : Multiplexer is a digital switch. If allows digital information from several sources to be routed onto a single output line.
Description : What is priority Encoder?
Last Answer : A priority encoder is an encoder circuit that includes the priority function. In priority encoder, if 2 or more inputs are equal to 1 at the same time, the input having the highest priority will take precedence.
Description : Define Encoder?
Last Answer : An encoder has 2n input lines and n output lines. In encoder the output lines generate the binary code corresponding to the input value.
Description : What is binary decoder?
Last Answer : A decoder is a combinational circuit that converts binary information from n input lines to a maximum of 2n out puts lines.
Description : Define Decoder
Last Answer : A decoder is a multiple - input multiple output logic circuit that converts coded inputs into coded outputs where the input and output codes are different.
Description : Define Half adder and full adder
Last Answer : The logic circuit that performs the addition of two bits is a half adder. The circuit that performs the addition of three bits is a full adder.
Description : Define combinational logic
Last Answer : When logic gates are connected together to produce a specified output for certain specified combinations of input variables, with no storage involved, the resulting circuit is called combinational logic.