Explore topic-wise MCQs in Computer Science.

The value of the ratio M 1/M2 is 

The value of M1 is 

The valu of h2 is 

The value of h 1is 

Consider a new instruction named branch -on- bit -set (mnemonic bbs ).The instruction bbs reg pos label jumps to label if bit in position pos of register operand reg is one A register is 32 bits wide and the bits are numbered 0 to 31 bit in the following emuationof this instruction on a processor that does not have bbs implemented 

temp -----reg and mask 

Branch to label if temp is non -zero The variable temp is a temporary register For ocrrect emulation the variable mask must be generated by 

A CPU has five -stage pipeline and runs at 1 GHz frequency Instrution fetch happens in the first stage of the pipeline A conditional branch instruction 

computer the target address and evaluates the processor branch until the branch outcome is known A program executes 10 9 instructions out of which 20 %are conditional branches If each instruction takes one cycle to complete on average then total execution time of the program is 

A CPU has a cache with block size 64 bytes The main memory has K banks each bank bank being c bytes wide consecutive c byte chunks are mapped on consecutiv banks with warp -around All the k banks can be accssed in parallel but tow accesses to the same bank must be serialized A cache block access may involve multiple iterations of parallel Each Iteration requires decoding the bank number s to be accessed in parallel and this takes k /2 ns . the latency of one bank access is 80 ns If c = 2 and k = 24 then latency of retrieving a cache block starting at address zero from main memory is 

In a memory system four 256x8 PROM chips are used to make total memory of size 1024x4 what is the number of address bus lines 

If each address space represents one byte of storage space how many address lines are needed to access RAM chip arranged in a 4x6 arryay where each chip is 8Kx4bits 

How many RAM chips of size (256KX1 bit) are required to build 1M Byte memory 

The seek time of a disk is 30 ms. It rotates at the rate of 30 rotations /second the capacity of each track is 300 word the access time is(approximately) 

The number of records contained within a block of data on magnetic tape is defined by 

For a memory system the cycle time is 

The minimum time delay requird between the initiation of tow successive memory operations is called 

The minimum time delay required between the initiation of two successive memory opeations is called 

Time elapsedbetween initiation of a memory operation and the completion of thet operation is called 

The desirable characterisic (s) of a memory system is (are)

The desirable characterisc (s)of a memory system is (are)

A ROM is used to store the table for multiplication of tow 8 -bit unsigned integers the size of ROM required is 

The tow types of main memory are 

Which part of the diskette never be touched 

The data on the the tracks on a magnetic disks are written as 

Which is the most popular medium for direct access secondary storage of a computer 

Secondary storage device which used a delivery grooveless surface and is encoded by a laser beam in the form of microscopic pits is called 

As a secondary storage medium what is the most important advantage of a video disk 

The storage device which is used to compensate for the difference in rates of flow of data from one device to another is called 

Whate was the amount of memory required the earliest operating system called dos 1 .0 

In a computer 16 bits are used to specify addresses in a ram the number of addresses will be 

If a computer has a 1024 K memory then what dose the letter K stand for

How many bits can be stored in the 8K capital 

Which of the following chips can be reprogrammed whit special electric pulese 

Which type of memory chips are likely to be used in the primary storage of the future generak of computers?

In modern computers bipolar semiconductor chips are often used in the arithemetic logic unit. What material is used for the slower and less expensive primary storage section?

Which out of the following is not an alternative name for primary memory?

The hardware in which data may be stored for a computer system is called 

Which of the following coded entries are used to control access to computers?

Which of the following storage devices can be carried around?

which of the following is not true is not true of primary storage?

Transfer of information from main storage is typically n times faster than the transfer from auxiliary storage, where n is about

The numberof bits that are typically stored on each track of a magnetic disk is usually

In magnetic disks, data id=s organiszed on the plotter in a concentric sets or rings called

Diskette and hard disks are

The number of records contained within a block of data on magnetic tape is defined by the

An advantage of blocking a tape is that

Serial access memories are useful in applications where

Which acess method is used for obetaining a record from a cassette tape?

The process of entering data into a storage location

The ALU of a Computer normally contains a number of hgh speed storage elements called 

Commonly used auciliary storage device are

Transfer of information from main storage is typically n times faster than the transfer from auxiliary storag, where n is about