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The Rate Of The Computer Storage Unit Is 1024 Instead Of 1000
Jun 05, 2017

  The rate of the computer storage unit is 1024 instead of 1000.

  The current computer is binary, so that they calculate the unit, only 2 integer power can be very convenient when the computer calculation, because the computer's internal work is high and low level of two states. So use binary to express the signal, Control signals and data) for computer identification. And people are accustomed to using the decimal system, so the memory manufacturers were only 1000 into the rate. The result is that the actual capacity is less than the nominal capacity, but this is legal. 1024 is 2 of the 10 th power, because if you take a large, not close to 10 integer times, not convenient for people to calculate; take a small, the rate is too low, the unit should be more to meet the demand, so take 2 of 10 Founder good

  Calculation example: nominal 100GB hard drive, the actual capacity of 100 × 1000 × 1000 × 1000 bytes / 1024 × 1024 × 1024 ≈ 93.1GB

  Visible product capacity shrinkage as long as the actual capacity to meet the calculation results (up and down the error should be within 10%), you buy is genuine, not cheated.

  The main memory of the computer can not meet the requirements of fast access speed, large storage capacity and low cost. In the computer, there must be speed from slow to fast, the capacity is from large to small multi-level memory, the optimal control scheduling algorithm and Reasonable cost, constitute a performance acceptable storage system. The performance of the storage system is becoming more and more important in the computer. The main reason is that the Von Neumann architecture is based on the concept of stored procedures, and the memory operation is about 70% of the CPU time. ② storage management and organization of good or bad affect the efficiency of the whole machine. ③ modern information processing, such as image processing, database, knowledge base, voice recognition, multimedia and other storage systems on the high demand.