Computer architecture access times

  • What has the fastest access time in a computer?

    The memories made of semiconductors have the quickest access times.
    Older memory such as magnetic tapes, magnetic discs, compact discs, and others have longer access times.
    A digital electronic semiconductor device known as semiconductor memory is used for digital data storage, such as computer memory..

  • What is access method in computer architecture?

    An access method is: The portion of a computer's operating system responsible for formatting data sets and their direction to specific storage devices.
    Examples from the mainframe world include Virtual Storage Access Method (VSAM) and Indexed Sequential Access Method (ISAM)..

  • What is seek time in computer architecture?

    Seek time is the time taken for a hard disk controller to locate a specific piece of stored data.
    Seek time can vary upon where the head is present when the read/write request is sent.
    When anything is read or written to a disc drive, the read/write head of the disc moves to the right position..

  • What is the access cycle time?

    Cycle time is the time, usually measured in nanosecond s, between the start of one random access memory ( RAM ) access to the time when the next access can be started.
    Access time is sometimes used as a synonym (although IBM deprecates it)..

  • What is the access time of computer graphics?

    The access time per pixel = 1/ access rate.
    The access time is around 54 nanoseconds/pixel for the 640 x 480 system, The access time is around 12.7 nanoseconds/pixel for the 1280\xd71024 system. 33.
    Consider a raster system with the resolution of 1024 x 768 pixels and the color palette calls for 65,536 colors..

  • What is the formula for access time?

    To find the effective memory-access time, we must weigh each case by its probability: EAT(effective access time)= P x hit memory time + (1-P) x miss memory time. effective access time = 0.80 x 120 + 0.20 x 220 = 140 nanoseconds..

  • What is the timing of access?

    The time taken to retrieve an item of information from storage.
    The access time may be counted in nanoseconds for a semiconductor device, in milliseconds for a magnetic disk, or in minutes if the file containing the required data is on magnetic tape..

  • Why data access time?

    Access time is the elapsed time between the initiation of a request for data and receipt of the first bit or byte of that data.
    Direct access devices require varying times to position a read-write head over a particular record..

  • Why is the access time of the cache memory less than the access time of the main memory?

    Explanation: The reason for the access memory to have the lesser than that of the access memory of the main memory because of the fact that the cache file comprises of less space than that of the main memory..

  • Access time
    The average seeks time on a modern disk is 8 to 12 ms.
    Rotational delay or latency time − The time required to position the read/write head on a specific sector when the head has already been placed on the desired track is called rotational delay.
  • Cycle time is the time, usually measured in nanosecond s, between the start of one random access memory ( RAM ) access to the time when the next access can be started.
    Access time is sometimes used as a synonym (although IBM deprecates it).
  • Factors affecting network access time include the speed and reliability of the network connection, the distance between the client and server, the type of network protocol being used, and the amount of network traffic.
  • ROM is a type of read only memory that can be erased and reprogrammed repeatedly, up to 10000 times.
    It is also known as Flash EEPROM as it is similar to flash memory.
    It is erased and reprogrammed electrically without using ultraviolet light.
    Access time is between 45 and 200 nanoseconds.
  • To find the effective memory-access time, we must weigh each case by its probability: EAT(effective access time)= P x hit memory time + (1-P) x miss memory time. effective access time = 0.80 x 120 + 0.20 x 220 = 140 nanoseconds.
DRAM (dynamic random access memory) chips for personal computers have access times of 50 to 150 nanoseconds (billionths of a second). Static RAM (SRAM) has access times as low as 10 nanoseconds. Ideally, the access time of memory should be fast enough to keep up with the CPU.
DRAM (dynamic random access memory) chips for personal computers have access times of 50 to 150 nanoseconds (billionths of a second). Static RAM (SRAM) has access times as low as 10 nanoseconds. Ideally, the access time of memory should be fast enough to keep up with the CPU.
In a computer, it is the time interval between the instant at which an instruction control unit initiates a call for data or a request to store data, and the 
WHY COMPUTER ARCHITECTURE. MATTERS How- ever, to limit the number of lines that must be searched and keep the cache access times short, caches generally limit.

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