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3 years ago

Illustrate the process of using an operating system to manipulate a computer’s desktop, files and disks.

Computers and Technology

1 answer:

slamgirl [31]3 years ago

7 0

Answer:

Operating system is basically enhanced the performance and functionality of the system. It also reduce the dependency of various user applications. Operating system basically handle all the important decision of the computer system by handling all the process like creation and deletion in the system.

There are several process of using the operating system for manipulate the disks, files and computer desktop in the system are as follows:

By removing and installing different software
Controlling and managing the configuration of the computer system
By changing the settings of the system to manipulate the system files

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A computer equipped with fingerprint recognition software, which denies access to a computer to anyone whose fingerprint is not

morpeh [17]

Answer: C. It is not possible for any top computer hacker to gain access to a computer equipped with the recognition software solely by virtue of skill in replicating the structure of fingerprints

Explanation:

Option A is incorrect. There's no information on the speed and analysis of the fingerprint.

Option B is incorrect. No information regarding computer installation was given in the passage.

Option C is correct. With the information, it can be concluded that it is impossible for a top hacker to have access to the protected computer.

Option D is Incorrect. Information regarding time and investment costs that were incurred during the software development wasn't given in the passage

Option E is Incorrect. The passage didn't give information on the errors that the software produced.

8 0

3 years ago

Consider the system of simultaneous equations:

FromTheMoon [43]

Answer:

System of linear equations is solved below and explained in detail.

Explanation:

Part a:

M = [1 3 5 2; 2 -4 7 -3; 0 -4 -7 3; 5 -3 2 1];

c = [7; -3; -1; 0];

Part b:

The statement used for the solution of system of linear equation will be:

X = linsolve(M,c)

where X will give the values of x1, x2, x3, x4 respectively.

Part c:

The system is solved in matlab using above equation and the results are attached in a file.

The values for X are:

x1 = -2/7

x2 = 3/7

x3 = 4/7

x4 = 11/7

4 0

3 years ago

Computer A has an overall CPI of 1.3 and can be run at a clock rate of 600 MHz. Computer B has a CPI of 2.5 and can be run at a

kirill115 [55]

Answer:

Check the explanation

Explanation:

CPI means Clock cycle per Instruction

given Clock rate 600 MHz then clock time is Cー 1.67nSec clockrate 600M

Execution time is given by following Formula.

Execution Time(CPU time) = CPI*Instruction Count * clock time = $\frac{CPI*Instruction Count}{ClockRate}$

for system A CPU time is 1.3 * 100, 000 600 106

= 216.67 micro sec.

for system B CPU time is $=\frac{2.5*100,000}{750*10^6}$

= 333.33 micro sec

c) Since the system B is slower than system A, So the system A executes the given program in less time

Hence take CPU execution time of system B as CPU time of System A.

therefore

216.67 micro = = $\frac{2.5*Instruction}{750*10^6}$

Instructions = 216.67*750/2.5

= 65001

hence 65001 instruction are needed for executing program By system B. to complete the program as fast as system A

3 0

3 years ago

-1

N76 [4]

Answer:A flowchart is a diagram that depicts the steps involved in solving a problem. The following flowchart shows how to output the multiplication table ( n * 1 to m * 1) of a number, n and m:

3 0

3 years ago

If you need to multiply 50 and 8 and divide by 2, what would you type on the numerlc keypad?

nata0808 [166]

Answer:

50*8/2

The asterisk is the multiplication sign and the parenthesis is the division.

I've never used an apostrophe for a multiplication sign before, but I'm guessing multiplication is what it stands for.

Explanation:

4 0

2 years ago