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geniusboy [140]

3 years ago

8

The __________ utility has the capability to manage users, create and administer user groups, and apply user rights to those use

rs and groups.

Computers and Technology

1 answer:

barxatty [35]3 years ago

7 0

The SECURITY utility has the capability to manage users, create and administer user groups, and apply user rights to those users and groups.

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Add the following 2's complement binary numbers. Also express the answer in decimal. a. 01+ 1011b. 11+ 01010101c. 0101+ 110d. 01

kenny6666 [7]

Answer:

(a) 01 + 1011

Convert the two numbers into their 4-bit representation.

=> 01 = 0001

=> 1011

Addition of the two numbers (in their 2's complement form) gives the following:

0 0 0 1 ------------------> + 1 (in decimal)

<u>1 0 1 1 </u> ------------------> - 5 (in decimal)

<u>1 1 0 0 </u> -------------------> - 4 (in decimal)

Explanation for (a)

<em>01 or 0001</em>

Since the most significant bit is 0 (leftmost bit), it shows that it is a positive number. Therefore, it can be directly converted to its decimal representation as follows:

0001 = 0 x $2^{3}$ + 0 x $2^{2}$ + 0 x $2^{1}$ + 1 x $2^{0}$ = 1

0001 is + 1 in decimal.

<em>1011</em>

Its most significant bit(MSB) is 1 showing that it is negative.

Flipping all its bits and adding 1 to the result, will convert it to it's positive counterpart.

i.e 1011 => 0100 + 1 = 0101.

Converting the result (0101) to decimal gives

0101 = 0 x $2^{3}$ + 1 x $2^{2}$ + 0 x $2^{1}$ + 1 x $2^{0}$ = 5

1011 is -5 in decimal

<em>01 + 1011 or 0001+ 1011 = 1100</em>

The result (1100), of the addition of the two numbers, is a negative number as the MSB is 1.

Convert it to it's positive counterpart.

i.e 1100 => 0011 + 1 = 0100.

Converting the result (0100) to decimal gives

0100 = 0 x $2^{3}$ + 1 x $2^{2}$ + 0 x $2^{1}$ + 0 x $2^{0}$ = 4

Therefore, the result, 1100 is -4 in decimal.

===================================================

(b) 11 + 01010101

Convert the two numbers into their 8-bit representation since one of them is in 8-bit.

PS: Taking 11, its MSB is 1 showing that it is a negative number. Also, it's 8-bit representation will mean pre-padding it with ones(1s) rather than zeros as follows. In other words, pre-padding a 2's complement number is done using its sign bit.

=> 11 = 11111111

=> 01010101

Addition of the two numbers (in their 2's complement form) gives the following:

1 1 1 1 1 1 1 1 ------------------> - 1 (in decimal)

<u> 0 1 0 1 0 1 0 1 </u> ------------------> + 85 (in decimal)

<u>1 0 1 0 1 0 1 0 0</u> -------------------> + 84 (in decimal)

Discard the carry-out bit (1) making the result 01010100

Explanation for (b)

<em>11 or 11111111</em>

Its MSB is 1 showing that it is negative.

Convert it to it's positive counterpart.

11111111 => 00000000 + 1 = 00000001

Converting the result (00000001) to decimal gives 1

11 or 11111111 is - 1 in decimal.

<em>01010101</em>

Its MSB is 0 showing that it is also positive. Now, convert to decimal

01010101 = 85

01010101 is + 85 in decimal.

<em>11111111 + 01010101 = 01010100</em>

The result (01010100), is also positive as the MSB is 0. Now, convert to decimal.

01010100 = 84

Therefore the result (01010100) is + 84 in decimal.

===================================================

(c) 0101 + 110

Convert the two numbers into their 4-bit representations.

=> 0101 = 0101

=> 110 = 1110

Addition of the two numbers (in their 2's complement form) gives the following:

0 1 0 1 ------------------> + 5 (in decimal)

<u> 1 1 1 0 </u> -----------------> - 2 (in decimal)

<u> 1 0 0 1 1 </u> -------------------> + 3 (in decimal)

Dicard the carry-out bit (leftmost bit) to get 0011 as result.

Explanation for (c)

<em>0101</em>

Since the MSB is 0 (leftmost bit), it shows that it is a positive number. Now, convert to decimal.

0101 = 5

0101 is +5 in decimal.

<em>110 or 1110</em>

Its MSB is 1 showing that it is negative.

Convert it to it's positive counterpart.

i.e 1110 => 0001 + 1 = 0010.

Converting the result (0010) to decimal gives

0010 = 2

1110 is -2 in decimal

<em>0101 + 110 = 0101+ 1110 = 0011</em>

The result (0011), is a positive number as the MSB is 0.

Converting the result (0011) to decimal gives

0011 = 3

Therefore, the result, 0011 is 3 in decimal.

===================================================

(d) 01 + 10

Convert the two numbers into their 4-bit representation.

=> 01 = 0001

=> 10 = 1110

Addition of the two numbers (in their 2's complement form) gives the following:

0 0 0 1 ------------------> + 1 (in decimal)

<u>1 1 1 0 </u> ------------------> - 2 (in decimal)

<u>1 1 1 1 </u> -------------------> - 1 (in decimal)

Explanation for (d)

<em>01 or 0001</em>

Since the MSB is 0 (leftmost bit), it shows that it is a positive number. Now convert to decimal.

0001 = 1

0001 is + 1 in decimal.

<em>1110</em>

Its MSB is 1 showing that it is negative.

Convert it to it's positive counterpart.

i.e 1110 => 0001 + 1 = 0010.

Converting the result (0010) to decimal gives

0010 = 2

1110 is -2 in decimal

<em>01 + 1011 or 0001+ 1110 = 1111</em>

The result (1111), is a negative number as the MSB is 1.

Convert it to it's positive counterpart.

i.e 1111 => 0000 + 1 = 0001.

Converting the result (0001) to decimal gives

0001 = 1

Therefore, the result, 1111 is -1 in decimal.

7 0

4 years ago

An electronic ____ is an application you use to perform numeric calculations and to analyze and present numeric data.

attashe74 [19]

An electronic $\sf\purple{spreadsheet}$ is an application you use to perform numeric calculations and to analyze and present numeric data.

$\bold{ \green{ \star{ \orange{Mystique35}}}}⋆$

7 0

3 years ago

A form that dedicates a page for each item retrieved for a case; it allows investigators to add more detail about exactly what w

gregori [183]

Answer:

Single-evidence form

Explanation:

Single-evidence form dedicates a page for each item retrieved for a case; it allows investigators to add more detail about exactly what was done to the evidence each time it was taken from the storage locker.

4 0

3 years ago

A spreadsheet is an example of a(n):

zhenek [66]

Answer:

general-purpose application

Explanation:

General purpose application

1. These are software applications which can be used for multiple purposes.

2. These applications perform various tasks as per the need of the user. These tasks can vary in complexity and may or may not be related to each other.

3. These applications are useful for almost all categories of users.

Example include spreadsheets which is a primary application for accounting purpose. It can also be used for to store numerical data or other data in an organized format.

Another use of spreadsheets is visible in data analysis. Graphs and charts can be created based on the given numerical data stored in the spreadsheet. This helps in business growth.

Microsoft Excel and Apple Numbers are spreadsheet applications.

Another example is a word application that can be used to prepare document, reports, and flyers also. Microsoft word is a word processor.

Specialized program

1. These are software applications which can be used for special purpose only.

2. These applications can perform only the task for which it is created.

Examples include windows media player. This application can only run media (audio or video) programs.

System application

1. These include operating system and utility applications.

2. The operating system acts as an interface between the user and the hardware resources of the computer.

For example, Windows is an operating system. It is available in various versions.

3. The computer system and its resources, both software and hardware, are maintained and optimized using utility applications.

Anti-virus is an example of utility applications. It protects the computer resources from virus.

Utility applications

4. The computer system and its resources, both software and hardware, are maintained and optimized using utility applications.

5. These applications are mandatory to smooth functioning of a computer.

For example, disk driver, file manager and back up applications help in managing disks and aid in taking back ups and file management is done by file manager

8 0

3 years ago

tatyana61 [14]

Answer:

Its B,D,E

Explanation:

Got it right on e2020

5 0

3 years ago