# Assignment 1 Answers - CGS 3269 Computer Architecture...

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CGS 3269 Computer Architecture Concepts Solution for Assignment 1 1) Compute a) How many milliseconds (ms) are in 1 second? 1/10 -3 = 1000 milliseconds b) How many microseconds (μs) are in 1 second? 1/ 10 -6 = 1,000,000 microseconds c) How many nanoseconds (ns) are in 1 millisecond? 1 x 10 -3 / 1 x 10 -9 = 1,000,000 nanoseconds d) How many microseconds are in 1 millisecond? 1 x 10 -3 / 1 x 10 -6 = 1,000 microseconds e) How many nanoseconds are in 1 microsecond? 1 x 10 -6 / 1 x 10 -9 = 1,000 nanoseconds f) How many kilobytes (KB) are in 1 gigabyte (GB)? 2 30 / 2 10 = 2 20 = 1,048,576 KB g) How many kilobytes are in 1 megabyte (MB)? 2 20 / 2 10 = 2 10 = 1,024 KB h) How many megabytes are in 1 gigabyte (GB)? 2 30 / 2 20 = 2 10 = 1024 MB i) How many bytes are in 20 megabytes? 2 20 x 20 = 20,971,520 Bytes j) How many kilobytes are in 2 gigabytes? 2 30 / 2 10 = 2 20 x 2 = 2,097,152 KB 2) If a frequency is given as 3 MHz, how much time in milliseconds does one cycle take? Recall that 1 milliseconds = 1ms = 10 -3 seconds. 3 MHZ = 3,000,000 HZ… 1 / 3,000,000 = 1/(3 x 10 6 ) sec = (1/3) x 10 -6 sec = 0.333 x 10 -6 sec = 0.333 x 10 -3 x 10 -3 sec = 0.000333 x 10 -3 sec = 0.000333 msec = 3.33 x 10 -4 msec 3) Von Neumann was responsible for several major contributions in computer design. Name one and explain. Von Neumann architecture: The von Neumann architecture is a design model for a stored-program digital computer that uses a central processing unit (CPU) and a single separate storage structure ("memory") to hold both instructions and data. Such computers are theoretically equivalent to a universal Turing machine and have a sequential architecture. 4) In the von Neumann model, explain the purpose of the: a) processing unit The processing unit performs all of the arithmetic and logic functions.

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## This note was uploaded on 03/08/2012 for the course CGS 3269 taught by Professor Staff during the Fall '08 term at University of Central Florida.

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Assignment 1 Answers - CGS 3269 Computer Architecture...

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