Blog

The picture seen below represents ______ which functions in _____  

Given a disk drive with the below specifications, what is the capacity of the disk? (Show your work) 1024 bytes per sector 200 sectors per track 5000 tracker per surface 4 platters 1 surface per platter Rotational speed of 7800 RPM

The picture seen below represents ______ which functions in _____

On a Unix file system, directories are stored in the same way as files.

For each of the following properties, mark whether it is an advantage for a fixed or a variable-length instruction model for an ISA. (4 points) Write F in the cell that you believe is an advantage to a fixed-length ISA. Write V in the cell that you believe is an advantage to a variable-length ISA. [space] Saves space [fixed_pc_inc] PC can be incremented by a fixed value [simple_inst] Simplifies instruction decode [mult_addr] Makes it easy to support multiple memory addresses in a single instruction [hardware] Simplifies hardware implementation [code_read] Reduces the amount of code to be read from memory [size] The size of the instruction is known in advance [opcode_size] The opcode can control the size of the instruction

Given the following declaration of a struct, pack the members of the struct to minimize wasted space and respect alignment. Assume byte addressability and do not reorder members. Assume the ISA is Big Endian. struct x {  char a{3}; // values { 0x30, 0xAC, 0x20 }  short b;   // value 0xBEEF  int c;     // value 0x6121C0DE  char d;    // value 0xCA  short e;   // value 0xMEAL}; Not all the hex values are valid. Please copy the values into the table below (e. g. LE is not a valid hex but write 0xLE in the corresponding cell). Prefix all the hex numbers with 0x and use uppercase for alphabetical digits (e. g. for hex value 0xFF: xFF, FF, and ff will NOT be accepted). There will be point deductions for misformatted fields. Write uppercase N/A in any unused fields. Do not leave any leading or trailing whitespaces in each cell. Starting Address +0 +1 +2 +3 0x1024 [x1024] [x1025] [x1026] [x1027] 0x1028 [x1028] [x1029] [x102A] [x102B] 0x102C [x102C] [x102D] [x102E] [x102F] 0x1030 [x1030] [x1031] [x1032] [x1033]

Which of the following protocols has connection-oriented delivery?

Indicate the purpose of each register and whose responsibility it is in the calling convention to save each of the following registers if they are needed upon return (8 points) Answer Bank for the Purpose column Answer Bank for the Convention column General Purpose (callee or caller saved) Return Value Subroutine Return Address Stack Pointer Argument Interrupt Return Address Frame Pointer Branch Target Address Program Counter Caller-save Callee-save Neither Fill in the table below. Select an option with the dropdown menu in each cell. Register Purpose Convention $zero Always holds zero Neither $at [purpose_at] [conv_at] $v0 [purpose_v0] [conv_v0] $a0 [purpose_a0] [conv_a0] $a1 [purpose_a1] [conv_a1] $a2 [purpose_a2] [conv_a2] $t0 [purpose_t0] [conv_t0] $t1 [purpose_t1] [conv_t1] $t2 [purpose_t2] [conv_t2] $s0 [purpose_s0] [conv_s0] $s1 [purpose_s1] [conv_s1] $s2 [purpose_s2] [conv_s2] $k0 [purpose_k0] [conv_k0] $sp [purpose_sp] [conv_sp] $fp [purpose_fp] [conv_fp] $ra [purpose_ra] [conv_ra]

Given a disk drive with the below specifications, what is the transfer rate of the disk? (Show your work) 1024 bytes per sector 200 sectors per track 5000 tracks per surface 4 platters, 8 surfaces Rotational speed of 7800 RPM

Given the below file system specifications, what would be the maximum size of a file in this system? (Show your work) Size of index block = 1024 bytes Size of data block = 4096 bytes Size of pointer = 8 bytes An i-node consists of: 2 direct data block pointers, 2 single indirect pointers, 2 double indirect pointers.