Problem 5
The following table represents the addresses and contents (using hexadecimal notation) of some cells in a machine's main memory. Starting with this memory arrangement, follow the sequence of instructions and record the final contents of each of these memory cells: Step 1. Move the contents of the cell whose address is \(0 x 03\) to the cell at address \(0 \times 00\). Step 2. Move the value \(0 \times 01\) into the cell at address \(0 \mathrm{x} 02\). Step 3. Move the value stored at address \(0 \mathrm{x} 01\) into the cell at address \(0 \mathrm{x} 03\).
Problem 6
How many cells can be in a computer's main memory if each cell's address can be represented by two hexadecimal digits? What if four hexadecimal digits are used?
Problem 7
What bit patterns are represented by the following hexadecimal notations? a. \(0 \times 8 \mathrm{~A} 9\) b. \(0 \mathrm{xDCB}\) c. \(0 \mathrm{xEF} 3\) d. 0xA01 e. \(0 \mathrm{xC99}\)
Problem 8
What is the value of the least significant bit in the bit patterns represented by the following hexadecimal notations? a. \(0 x 9 \mathrm{~A}\) b. \(0 \times 90\) c. \(0 \mathrm{x} 1 \mathrm{~B}\) d. \(0 x 6 E\)
Problem 9
Express the following bit patterns in hexadecimal notation: a. 10110100101101001011 b. 000111100001 c. 1111111011011011
Problem 10
Suppose a digital camera has a storage capacity of \(500 \mathrm{MB}\). How many blackand-white photographs could be stored in the camera if each consisted of 512 pixels per row and 512 pixels per column if each pixel required one bit of storage?
Problem 11
Suppose an image is represented on a display screen by a square array containing 256 columns and 256 rows of pixels. If for each pixel, 3 bytes are required to encode the color and 8 bits to encode the intensity, how many bytesize memory cells are required to hold the entire picture?
Problem 12
a. What are the advantages, if any, of using zoned-bit recording for disk storage systems? b. What is the difference between seek time and access time?
Problem 13
Suppose that you want to create a backup of your entire data which is around 10GB. Would it be reasonable to use DVDs for the purpose of creating this backup? What about BDs (Blu-ray Disks)?
Problem 14
If each sector on a magnetic disk can store 512 bytes of data, how many sectors are required to store two pages of integers, where each page contains 10 lines, each line contains 100 integers, and every integer is represented by using four bytes?
