Question 1

A computer's main memory consists of numerous memory cells,each of which contains ________ bits.Each memory cell is identified by a numeric value called the cell's _________.

Accepted Answer

The answer of A computer's main memory consists of numerous...

Question 2

Which of the following is a means of encoding music?
A) ASCII
B) MIDI
C) JPEG
D) GIF

Accepted Answer

MIDI (Musical Instrument Digital Interface) is a protocol that enables electronic musical instruments, computers, and other devices to communicate with each other and to exchange musical information. It is a means of encoding music and allows for the creation and playback of digital music. ASCII, JPEG, and GIF are all encoding methods, but they are not specifically designed for encoding music.

Question 3

A7DF is the hexadecimal representation for what bit pattern?
____________

Accepted Answer

The answer of A7DF is the hexadecimal representation for what...

Question 4

What is the largest positive integer that can be represented in a two's complement system in which each value is represented by eight bits?
____________

Accepted Answer

The answer of What is the largest positive integer that...

Question 5

Which of the following provides a compressed representation of an image by limiting the number of different pixel colors to 256,thereby enabling each pixel in an image to be represented by a single byte whose value indicates which of a palette of entries represents the pixel's color?
A) ASCII
B) MPEG
C) JPEG
D) GIF

Accepted Answer

The description given in the question matches the compression algorithm used in GIF (Graphics Interchange Format) images. GIF limits the color palette to 256 colors and represents each pixel with a single byte value indicating the color index in the palette.

Question 6

How many different bit patterns can be formed if each must consist of exactly 6 bits?
____________

Accepted Answer

The answer of How many different bit patterns can be...

Question 7

What value is represented by each of the following patterns in excess notation?
A. 10000 ____
B. 0110 ____
C. 1100 ____

Accepted Answer

The answer of What value is represented by each of...

Question 8

When using two's complement notation,what bit pattern represents the negation of 01001010?
____________

Accepted Answer

The answer of When using two's complement notation,what bit pattern...

Question 9

If the patterns 101.11 and 1.011 represent values in binary notation,what is the binary representation of their sum?
____________

Accepted Answer

The answer of If the patterns 101.11 and 1.011 represent...

Question 10

Which of the following systems is least efficient when encoding numeric values?
A) Two's complement notation
B) Excess notation
C) ASCII
D) Floating-point notation

Accepted Answer

ASCII is a character encoding system and is not designed to efficiently encode numeric values. It is primarily used to encode text characters. The other options listed are specifically designed for numeric value encoding.

Question 11

Translate each of the following binary representations into its equivalent base ten representation.
A. 1100 	__________
B. 10.011 __________
C. 0.01 	__________
D. 10001 __________

Accepted Answer

The answer of Translate each of the following binary representations...

Question 12

Represent the bit pattern 1111010010011011 in hexadecimal notation.
_________

Accepted Answer

The answer of Represent the bit pattern 1111010010011011 in hexadecimal...

Question 13

Using a two's complement notation system in which each value is represented by a pattern of six bits,represent the value -5.
____________

Accepted Answer

The answer of Using a two's complement notation system in...

Question 14

Rewrite each of the following values (represented in base ten notation)in binary notation.
A. 7 	__________
B. 23 	__________
C. 2 1/4 __________
D. 5/8 	__________

Accepted Answer

The answer of Rewrite each of the following values (represented...

Question 15

What is the smallest negative integer that can be represented in a two's complement system in which each value is represented by eight bits?
____________

Accepted Answer

The answer of What is the smallest negative integer that...

Question 16

Using a two's complement notation system in which each value is represented by a pattern of six bits,represent the value 5.
____________

Accepted Answer

The answer of Using a two's complement notation system in...

Question 17

How many bits are needed to represent 1024 different bit patterns?
____________

Accepted Answer

The answer of How many bits are needed to represent...

Question 18

In a two's complement system,what value is represented by the pattern 11111111111111001?
____________

Accepted Answer

The answer of In a two's complement system,what value is...

Question 19

Which of the following is a possible LZW compression of the message "xyz xyz xyz"?
A) 1234
B) 1234545
C) 232
D) 12

Accepted Answer

LZW compression works by reading a sequence of symbols and when it encounters a new symbol or sequence, it adds it to the dictionary and outputs the code for the previously encountered sequence. For "xyz xyz xyz", the process would start by encoding 'x', 'y', and 'z' individually (assuming 'x', 'y', and 'z' are assigned codes 1, 2, and 3 respectively). When it encounters 'xyz' again, it would have already added 'xyz' as a new entry in its dictionary (let's say with the code 4), so it can now encode the next occurrence of 'xyz' more efficiently. The pattern repeats for the third 'xyz', which can be encoded using the already added dictionary entry. Therefore, "1234545" represents a plausible LZW compression sequence for "xyz xyz xyz", starting with individual characters and then using the dictionary for repeated sequences.

Question 20

How many errors per pattern could be corrected when using an error-correcting code in which any two code patterns differ by a Hamming distance of 8?
A) 3
B) 4
C) 5
D) 6

Accepted Answer

The number of errors that can be corrected is given by the formula (d-1)/2, where d is the minimum Hamming distance. For a Hamming distance of 8, (8-1)/2 = 3.5, which means up to 3 errors can be corrected.

Quiz 1: Data Representation

A computer's main memory consists of numerous memory cells,each of which contains bits.Each memory cell is identified by a numeric value called the cell's _.

Which of the following is a means of encoding music?

A7DF is the hexadecimal representation for what bit pattern? ____________

What is the largest positive integer that can be represented in a two's complement system in which each value is represented by eight bits? ____________

Which of the following provides a compressed representation of an image by limiting the number of different pixel colors to 256,thereby enabling each pixel in an image to be represented by a single byte whose value indicates which of a palette of entries represents the pixel's color?

How many different bit patterns can be formed if each must consist of exactly 6 bits? ____________

What value is represented by each of the following patterns in excess notation? A. 10000 B. 0110 C. 1100

When using two's complement notation,what bit pattern represents the negation of 01001010? ____________

If the patterns 101.11 and 1.011 represent values in binary notation,what is the binary representation of their sum? ____________

Which of the following systems is least efficient when encoding numeric values?

Translate each of the following binary representations into its equivalent base ten representation. A. 1100 B. 10.011 C. 0.01 D. 10001

Represent the bit pattern 1111010010011011 in hexadecimal notation. _________

Using a two's complement notation system in which each value is represented by a pattern of six bits,represent the value -5. ____________

Rewrite each of the following values (represented in base ten notation)in binary notation. A. 7 B. 23 C. 2 1/4 D. 5/8

What is the smallest negative integer that can be represented in a two's complement system in which each value is represented by eight bits? ____________

Using a two's complement notation system in which each value is represented by a pattern of six bits,represent the value 5. ____________

How many bits are needed to represent 1024 different bit patterns? ____________

In a two's complement system,what value is represented by the pattern 11111111111111001? ____________

Which of the following is a possible LZW compression of the message "xyz xyz xyz"?

How many errors per pattern could be corrected when using an error-correcting code in which any two code patterns differ by a Hamming distance of 8?