What is the best way to convert data that has been written to a device that only allows sequential access to a device that only supports direct access?
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What is the best way to convert data that has been written to a device that only allows sequential access to a device that only supports direct access?
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- On a floppy disk (or a hard disk) the heads on all the surfaces will be in the same relative position over the surfaces measured in from the outside of the disk. As the disk rotates, a certain portion of a surface will pass under each head. What is that portion of the surface called? That portion is divided up into smaller pieces. Those pieces are the smallest addressable portion of the disk What are these pieces called?What's the difference between, say, sequential access devices and random access devices?64. The time which is needed for consecutive blocks transferring is classified as a. rotational delay b. bulk transfer rate c. reel time d. seek time
- Describe the various synchronization mechanisms used in multithreading, such as mutexes, semaphores, and monitors. When and why would you choose one synchronization mechanism over another?An address space in the memory map starts at address Ox40000000 and ends at address O×40000FFE. What is the size of the space if the data size is 2 bytes? 16k bytes 4k bytes 2k bytes 8k bytesData that has been saved in memory may be retrieved using one of two unique methods: either sequentially or directly. Both of these methods have their advantages and disadvantages. Why do contemporary equipment that are vital make use of direct access, and what are the benefits of doing so? How can the data that has been written on a device that only supports the sequential access technique be translated in such a manner that it can be read by a device that only supports the direct access method? Both devices only support their respective access techniques.
- PC: Ox08 : addu St0,Ss0,Ss2 PC: OX0C: addi St3,St0,5 sw St3,12(Ss2) PC: Ox14: beq St3,St5, loop PC: Ox10 add Rs BusA RW. Mem ToReg ALUSrc: ALUResult addi Rt RegWrite: RegDst ExtOp: ALUSrc: BusW sw ExtOp BusA ALUSrc ALUResult J. MemToReg beg RegWrite AluSrc BusA Beg J. ALUResult Windows ud'sA digital counter is a device that generates binary numbers in a specified count sequence. The counter progresses through the specified sequence of numbers when triggered by an incoming clock waveform, and it advances from one number to the next only during the occurence of a dock puse The counter cycles through the same sequence of numbers continuously so long as there is an incoming dock pulse. You are to buld a 3-bit sync count-down counter, which is a counter that counts down goes throu tates 111 to 000 and back to 11 to repeat the e the first step of the design, you Flop inputs a column for each fip-fop input The present stane design and should enumerate the count sequence. The next state columns should specnon next, given the present state. For example,circuit is ina present state of the ne e ina down-count sequence would be a You should design the FF inputs using the JK FF excitation table which is in Figure 11 Once you had completed the state transition table, une K Simulate…Generally speaking, character devices are able to transfer data more quickly than block devices. Is that statement truthful or false?
- In a certain font, a monochrome laser printer can print 60 lines of 75 characters per page. The average character occupies a box 2 mm × 2 mm, about 25% of which is toner. The rest is blank (i.e., no toner) The toner layer is 25 microns thick. The printer’s toner cartridge measures 25 × 8 × 2 cm. How many pages is one toner cartridge good for?Your friend has just bought a new personal computer. She tells you that her new system runs at 1GHz, which makes it over three times faster than her old 300 MHz system. What would you tell her? By using a specific example case (e.g., In a given system, for 40% of its time the processor is busy with computation but for 60% of its time processor is idle waiting for the completion of I/O operations in disk and network devices), explain how Amdahl’s law can be appliedWhat is the difference between isolated 1/0 and memory-mapped 1/0? What are the advantages and disadvantages of each? AL IRAQIA UNIVERSITY
