CSC 371 System I:Computer Architecture and Organization

Dr. R. M. Siegfried

Assignment 1 - p. 33-34/1-2, 1-4, 1-7, 1-9, 1-10, 1-14, 1-22, 1-25

Due Wednesday, September 6, 2023

1-2.

What is the exact number of bytes in a system that contains:

1. 32K bytes
2. 64M bytes
3. 6.4G bytes

1-4.

What is the largest binary number that can be expressed with 16 bits? What is the equivalent decimal and hexadecimal numbers?

1-7.

Convert the hexadecimal number 64CD to binary and then from binary.

1-9

Express the following numbers in decimal:

1. (10110.0101)₂
2. (16.5)₁₆
3. (26.24)₈
4. (DADA.B)₁₆
5. (1010.1101)₂

1-10

Convert the following binary numbers to hexadecimal and to decimal:

1. 1.10010
2. 110.010

Explain why the decimal answer for (2) is 4 times that of (1).

1-14.

Obtain the 1's and 2's complements of the following binary numbers:

1. 00010000
2. 00000000
3. 11011010
4. 10101010
5. 10000101
6. 11111111

1-22

Convert decimal 6,514 to both BCD and ASCII codes. For ASCII, an evenparity bit is to be appended at the left.

1-25

Represent decimal number 6,248 in:

1. BCD
2. Excess-3 code
3. 2421 code
4. a 6311 code

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