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Recent questions tagged co-and-architecture

2 votes
3 answers
1
Consider a set-associative cache of size $\text{2KB (1KB} =2^{10}$ bytes$\text{)}$ with cache block size of $64$ bytes. Assume that the cache is byte-addressable and a $32$ -bit address is used for accessing the cache. If the width of the tag field is $22$ bits, the associativity of the cache is _________
asked Feb 18 in CO and Architecture Arjun 758 views
2 votes
1 answer
2
Consider a computer system with $\text{DMA}$ support. The $\text{DMA}$ module is transferring one $8$-bit character in one $\text{CPU}$ cycle from a device to memory through cycle stealing at regular intervals. Consider a $\text{2 MHz}$ processor. If $0.5 \%$ processor cycles are used for $\text{DMA}$, the data transfer rate of the device is __________ bits per second.
asked Feb 18 in CO and Architecture Arjun 664 views
1 vote
0 answers
3
Assume a two-level inclusive cache hierarchy, $L1$ and $L2$, where $L2$ is the larger of the two. Consider the following statements. $S_1$: Read misses in a write through $L1$ cache do not result in writebacks of dirty lines to the $L2$ $S_2$: Write allocate policy must be ... $S_2$ is false $S_1$ is false and $S_2$ is true $S_1$ is true and $S_2$ is true $S_1$ is false and $S_2$ is false
asked Feb 18 in CO and Architecture Arjun 566 views
5 votes
2 answers
4
Consider a pipelined processor with $5$ stages, $\text{Instruction Fetch} (\textsf{IF})$, $\text{Instruction Decode} \textsf{(ID)}$, $\text{Execute } \textsf{(EX)}$, $\text{Memory Access } \textsf{(MEM)}$ ... $\textit{Speedup} $ achieved in executing the given instruction sequence on the pipelined processor (rounded to $2$ decimal places) is _____________
asked Feb 18 in CO and Architecture Arjun 927 views
0 votes
3 answers
5
Consider a computer system with a byte-addressable primary memory of size $2^{32}$ bytes. Assume the computer system has a direct-mapped cache of size $\text{32 KB}$ ($\text{1 KB}$ = $2^{10}$ bytes), and each cache block is of size $64$ bytes. The size of the tag field is __________ bits.
asked Feb 18 in CO and Architecture Arjun 371 views
1 vote
2 answers
6
A five-stage pipeline has stage delays of $150, 120, 150, 160$ and $140$ nanoseconds. The registers that are used between the pipeline stages have a delay of $5$ nanoseconds each. The total time to execute $100$ independent instructions on this pipeline, assuming there are no pipeline stalls, is _______ nanoseconds.
asked Feb 18 in CO and Architecture Arjun 427 views
0 votes
2 answers
7
Consider the following instruction sequence where registers $R1, R2$ and $R3$ are general purpose and $\text{MEMORY}[X]$ denotes the content at the memory location $X$ ... format. Assume that the memory is byte addressable. After the execution of the program, the content of memory location $3010$ is ____________
asked Feb 18 in CO and Architecture Arjun 574 views
1 vote
1 answer
8
Consider a machine with a byte addressable main memory of $2^{16}$ bytes block size of $8$ bytes. Assume that a direct mapped cache consisting of $32$ lines used with this machine. How many bits will be there in Tag, line and word field of format of main memory addresses? $8,5,3$ $8,6,2$ $7,5,4$ $7,6,3$
asked Nov 20, 2020 in CO and Architecture jothee 438 views
0 votes
1 answer
9
The following program is stored in memory unit of the basic computer. What is the content of the accumulator after the execution of program? (All location numbers listed below are in hexadecimal). ... $1002\text{H}$ $2011\text{H}$ $2022\text{H}$ $0215\text{H}$
asked Nov 20, 2020 in CO and Architecture jothee 608 views
0 votes
1 answer
10
A non-pipeline system takes $50$ns to process a task. The same task can be processed in six-segment pipeline with a clockcycle of $10$ns. Determine approximately the speedup ratio of the pipeline for $500$ tasks. $6$ $4.95$ $5.7$ $5.5$
asked Nov 20, 2020 in CO and Architecture jothee 263 views
0 votes
1 answer
11
Which of the following statements with respect to $K$-segment pipelining are true? Maximum speedup that a pipeline can provide is $k$ theoretically It is impossible to achieve maximum speed up $k$ in $k$-segment pipeline All segments in pipeline take same time in computation Choose the correct answer from the options ... $(b)$ and $(c)$ only $(a)$ and $(c)$ only $(a), (b)$ and $(c)$
asked Nov 20, 2020 in CO and Architecture jothee 204 views
0 votes
0 answers
12
Which of the following statements with respect to multiprocessor system are true? Multiprocessor system is controlled by one operating system In Multiprocessor system, multiple computers are connected by the means of communication lines Multiprocessor system is classified as multiple instruction stream and multiple data stream ... $(b)$ only $(a)$ and $(c)$ only $(b)$ and $(c)$ only
asked Nov 20, 2020 in CO and Architecture jothee 145 views
0 votes
2 answers
13
Arrange the following types of machine in descending order of complexity. SISD MIMD SIMD Choose the correct answer from the options given below: $a,b,c$ $c,b,a$ $b.c.a$ $c,a,b$
asked Nov 20, 2020 in CO and Architecture jothee 230 views
1 vote
1 answer
14
Given below are two statements: Statement $I$: Hardwired control unit can be optimized to produce fast mode of operation Statement $II$: Indirect addressing mode needs two memory reference to fetch operand In the light of the above statements, choose the correct answer from the ... are false Statement $I$ is correct but Statement $II$ is false Statement $I$ is incorrect but Statement $II$ is true
asked Nov 20, 2020 in CO and Architecture jothee 174 views
0 votes
4 answers
15
When a subroutine is called, then address of the instruction following the CAL instruction is stored in/on the Stack pointer Accumulator Program counter Stack
asked Apr 2, 2020 in CO and Architecture Lakshman Patel RJIT 426 views
0 votes
1 answer
16
The process of entering data into a storage location causes variation in its address number adds to the contents of the location is called a readout operation is destructive of previous contents
asked Apr 2, 2020 in CO and Architecture Lakshman Patel RJIT 201 views
0 votes
1 answer
17
Serial access memories are useful in applications where data consists of numbers short access time is required each stored word is processed differently data naturally needs to flow in and out in serial form
asked Apr 2, 2020 in CO and Architecture Lakshman Patel RJIT 145 views
0 votes
1 answer
18
0 votes
2 answers
19
Micro program is the name of source program in micro computers the set of instructions indicating the primitive operations in a system primitive form of macros used in assembly language programming program of very small size
asked Apr 2, 2020 in CO and Architecture Lakshman Patel RJIT 230 views
0 votes
1 answer
20
If a processor does not have any stack pointer register, then it cannot have subroutine call instruction it can have subroutine call instruction, but no nested subroutine calls nested subroutine calls are possible, but interrupts are not all sequences of subroutine calls and also interrupts are possible
asked Apr 2, 2020 in CO and Architecture Lakshman Patel RJIT 132 views
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