21. Page fault occurs when: A. The page is corrupted by application software B. The page is in main memory C. The page is not in main memory D. One tries to divide number by zero 22. Which of the following is capable of recognizing a pre-specified type of mark by pencil or pen? A. OMR B. Winchester C. Bar code reader D. Image scanner 23. I's complement representation of decimal number of -17 by using 8 bit representation is: A. 1101 1101 В. ОО01 0001 С. 1110 1110 D. 1100 1100

Q: 21. Page fault occurs when: A. The page is corrupted by application software B. The page is in main…

A: 21) Page fault : If the demanded page is not present in Main memory then we call it as page fault.…

Q: 1. Which of the following is the fastest approach for large amount of data 1/O? a. Polling direct…

A: Option d: Memory-mapped I/O is suitable for devices which move quantities of data quickly. Option…

Q: 44. What does the reciever use to extract frames from the bit stream? a. reverse lookup b.character…

A: GIVEN: 44. What does the receiver use to extract frames from the bit stream?a. reverse lookupb.…

Q: The following data segment starts at memory address 3600h (hexadecimal). .data printString someBytes…

A: The Answer is in Below Steps

Q: Given references to the following pages by a program: 4, 2, 3, 9, 3, 2, 5, 4, 6, 3, 5, 4, 9, 3, 6,…

A: Given pages,  4, 2, 3, 9, 3, 2, 5, 4, 6, 3, 5, 4, 9, 3, 6, 9, 4, 6, 3, 1, 6, 1, 2, 1. Number of…

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Q: onsider a virtual memory system that can address a total of 32 bytes. You have unlimited hard disk…

A: Given the size of each page, it is known that the size of each page is same as the size of each…

Q: $nasm -f elf . asm; ld -m elf_i386 -s -o demo.o len AORE msg AO MOV ebx, 1 main.asm:2: error: symbol…

A: section .data msg:     db 'Hello world!',10    ; 'Hello world!' plus a linefeed character len:  equ…

Q: Which of the following ranks the lowest (largest, least expensive, slowest access, least frequently…

A: Which of the following ranks the lowest (largest, least expensive, slowest access, least frequently…

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A: MIME (Multipurpose Internet Mail Extension)  It is the internet standard which transfers the mail in…

Q: Given references to the following pages by a program, 4, 2, 3, 9, 3, 2, 5, 4, 6, 3, 5, 4, 9, 3, 6,…

A: Summary: In this question, we have been given the references of the pages by a program. And we have…

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A: As You Ask Final Answer  Option A Transfer Time: Transfer time is the time to transfer the data .It…

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A: If you have 24 bits, then you can have 224 bits of data that can be stored 224 = 221 bytes       =…

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A: GIVEN: Which of the following refers to associative memory? A. the address of the data is…

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A: Actually, program is a executable software that runs on a computer.

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A: 7-Which of the following are not valid numbers in the radix indicated?   (DEF)16 This number is…

Q: en a 12 bit address space and the Page/Frame size is 64 How many bits are there for theloffset? How…

A: A)  Number of bits for offset = log 2 (page size)  = log 2 64 = 6 bits

Q: Q3) A address space is specified by 34 bit and corresponding memory space by 23 bit. 1- How many…

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Q: À page fault means that we referenced a page A Outside the memory boundaries B With an incorrect I/O…

A: A page fault means that we referenced a page-

Q: What is the best page size if entries now become 128 bytes?

A: Best page size Page size means a block of stored memory and also refers to the size of a page. It…

Q: 13) Which is the main reason to use a memory hierarchy in a computer? a. Heat dissipation b. Speed…

A: We are asked the basic questions on computer architecture and we are going to understand why we have…

Q: 7-Which of the following are not valid numbers Ih DEF15 111112 8278 -How much memory is supported by…

A: Actually, 1 byte =8 bits.

Q: 4) the line command rem(5,3)%3D%3D0 will return: а. 1 O b. 0 с. -1 d. 2

A: rem(5,3)==0 will return Answer =option d. 2

Q: uestion 5 Which of the following is used for cache memory? DRAM. SRAM. b. PROM. C. Flash Memory. d.

A: Answer is b) SRAM

Q: Question 3: On a byte addressable machine a string COMSATS UNIVERSITY ISLAMABAD PAKISTAN, starting…

A: We need to use the concept of PAGING for noncontinuous memory allocation.

Q: $nasm -f elf .asm; ld -m elf i386 -s -o demo .0 mov len BOV MSg MOV ebx, 1 main.asm:2: error: symbol…

A: global _startsection .text_start:mov edx, lenmov ecx, msgmov ebx,1mov eax, 4int 0x80mov eax, 1int…

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A: THIS IS A MULTIPLE-QUESTION-BASED PROBLEM. AS PER COMPANY GUIDELINES, ONLY THE FIRST QUESTION IS…

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A: (a) Dear Student, NRU(Not Recently Used) replaces that page which has not been used recently ie page…

Q: Q4 Use the input bellow to answer the following questions: RAM size = 1 MB , The logical address…

A: Answer

Q: Which of the following is a reasonable capacity for a DIMM in a recentcomputer? а. 1MB b. 16MB c.…

A: Ans: 1GB A DIMM(Dual In-line Memory Module) is a computer memory module having 64 bits. 64 bits can…

Q: A computer has four page frames. The time of loading, time of last access and the R and M bits for…

A: The Answer is in Below Steps

Q: Hi this is the question my number 05180000032   By assuming that X is the last digit of your…

A: 64 bit word means for each 8 cells there will be 1 word (a) What is the byte address of memory word…

Q: Assume that page errors occur 99 percent of the time (that is, a page is not in the TLB). What is…

A: Given that, Miss rate= 99/100= 0.99 Access time of TLB= 50 nanoseconds Access time of hard drive= 12…

Q: onsider a computer system with a 24-bit logical address and a 28-bit physical address. Let's pretend…

A: The 24 bit logical address would be divided as 2nd level PT 1st level PT page offset

Q: Which of these is true of our system? Circle one in each row (1 point each) Memory-mapped I/0…

A: 1) Memory-mapped I/O is true of our system.It provides advantages in terms of access, security, and…

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A: Note: Answering the first three subparts as per the guidelines. Given Data : 226 bytes in memory…

Q: The time required to access a page in primary memory is 15 ns. The average time required to access a…

A: The answer is

Q: 25. After step 4 the machine writes the resúlt to memory. This is called A Printing B. Storage C.…

A: 25)There are 4 steps in Machine Cycle: Fetch Decode Execute Store After the  step 4 the machine…

Q: If the page size in a 32-bit machine is 4K bytes then the size of the page table?

A: Introduction :Givenphysical address size (PA)=32 bitslogical address size (LA)=32 bitswe have to…