• List the six external parts of a computer system and identify which are output and which are input devices.

QUESTION POSTED AT 14/02/2020 - 01:47 PM

Answered by admin AT 14/02/2020 - 01:47 PM

Six input devices are the keyboardmouse, microphone, scanner, digital camera, and PC camera. Three output devices are a printer, a monitor, and speakers. I hope this helps.
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What was the first computer to defeat a world champion chess player?

deep blue IBM's chess-playing computer

ANSWERED AT 22/02/2020 - 05:45 PM


QUESTION POSTED AT 22/02/2020 - 05:45 PM

Computer output which is made up of pictures sounds and video is called

CoM IT HAS ALL THE INFORMATION YOU NEED.

ANSWERED AT 22/02/2020 - 05:32 PM


QUESTION POSTED AT 22/02/2020 - 05:32 PM

Which of the following parts of a tool would require the tool to have a guarding device?

Belts, gears, and pulleys require a guarding device.  

Guarding machines act as a safety feature and consist of a shield covering dangerous areas of the machine to prevent contact with the body parts from chips or sparks from exiting the machine. Belts, gears, and pulleys can cause accidents so they require to be guarded at all times


ANSWERED AT 22/02/2020 - 12:22 PM


QUESTION POSTED AT 22/02/2020 - 12:22 PM

Core component of the linux operating system is the linux kernel. if you were a linux systems administrator for a company, when would you need to upgrade your linux kernel

You would only need to upgrade your kernel via linux if u were a mlg hacker and knoushs how to speakith the englith

ANSWERED AT 21/02/2020 - 09:29 PM


QUESTION POSTED AT 21/02/2020 - 09:29 PM

Windows _ is a built-in tool that uses libraries, or groups of related files, to enable you to search for programs, files, or folders on your computer.

Windows explorer is a built-in tool that uses libraries, or groups of related files, to enable you to search for programs, files, or folders on your computer.

ANSWERED AT 21/02/2020 - 08:35 PM


QUESTION POSTED AT 21/02/2020 - 08:35 PM

HELP I am in the computer lab right now and I need legit reasons why i should work on a laptop instead of a computer. I dont like people staring at my work

Tell him it doesnt feel right and im pretty sure he will understamnd 

ANSWERED AT 21/02/2020 - 01:03 PM


QUESTION POSTED AT 21/02/2020 - 01:03 PM

Which of the following statements about hearing protection are true ? a.all statements are true b.earplugs and earmuffs are the most common types of hearing protection devices c.long exposure to high levels of noise can damage your hearing d. OSHA requires your employer to provide you with hearing protection when you are exposed to loud noises for an extended period of time

Answer

OSHA requires your employer to provide you with hearing protection when you are exposed to loud noises for an extended period of time

Explanation.

loud noises is unwanted sound and is not healthy when exposed to one hearing directly. So wearing sound protection prevents hearing loss caused by exposure of loud noise.

To prevent this people should wear a hearing protector if the noise or sound level at the workplace exceeds 85 decibels(A-weighted) or dBA.. The purpose of wearing hearing protectors is to reduce the noise and to prevent one from the hearing loss..


ANSWERED AT 20/02/2020 - 01:37 PM


QUESTION POSTED AT 20/02/2020 - 01:37 PM

List and describe the tools for all the main stages of app/application development.

stuff like -Information Gathering -Planning -Design -Development -Testing and Delivery Maintenance hope that helped.

ANSWERED AT 19/02/2020 - 02:03 PM


QUESTION POSTED AT 19/02/2020 - 02:03 PM

Match each step of the engineering design process with the correct example of what an engineer does during each step. Define the Problem Brainstorming Solutions Research Ideas/ Explore Possibilities Specify Constraints and Identify Criteria Consider Alternative Solutions Select an Approach Develop a Written Design Proposal Make a Model/ Prototype Test and Evaluate Refine/ Improve Create/ Make Product Communicate Results A. An engineer using a decision matrix to determine which one of his/her solution ideas meets the established criteria and constraints. B. An engineer creates a mind-map of potential solution ideas regardless of feasibility. C. An engineer uses data to make decisions about design alterations. D. An engineer does not allow preconceptions to limit the different ways in which a problem could be solved. E. An engineer develops a plan of action to produce a solution to a problem. F. An engineer creates a 3D visual representation of his/her proposed design solution. G. An engineer creates a formal presentation that summarizes his/her process for developing a solution to a problem. H. An engineer collects and analyzes data to determine how well his/her solution solves the problem. I. An engineer will document the essential guidelines and limitations for solving a problem. J. An engineer develops a short and descriptive statement that identifies what the problem is, who should address the problem, and when and how a problem should be adressed. K. An engineer sends his/her design to a maunfacturer for production. L. An engineer works to determine what mathematical and scientific knowledge is essential for creating a soltuion to a problem.

Answer:

Each of the step compared

  1. Define the problem = ( J )
  2. Brainstorming solutions = ( D )
  3. Research ideas/ Explore possibilities = ( H )
  4. specify constraints and identify Criteria = ( I )
  5. consider Alternative solutions = ( A )
  6. select an Approach = ( F )
  7. Develop a written Design Proposal = ( B )
  8. Make a Model/ Prototype = ( L )
  9. Test and Evaluate = ( C )
  10. Refine/ improve = ( E )
  11. create/ make product = ( K )
  12. Communicate Results = ( G )

Explanation:

Each of these engineering steps is taken during design process to make engineering of a project easy.

An engineer developing a short and descriptive statement that identifies what a problem is ,who would address the problem and when and how a problem should be addressed is a huge step in defining the problem.

An engineer does not allow preconceptions to limit the different ways in which a problem could be solved is part of the process that  allows the Engineer to brainstorm solutions.

An Engineer collects and analyzes data to determine how well his/her solution solves the problem is a step towards research ideas/ exploring possibilities by the Engineer.

each engineering process is matched with an example in the answer  

ANSWERED AT 18/02/2020 - 11:47 PM


QUESTION POSTED AT 18/02/2020 - 11:47 PM

Lenovo laptopwhat is this and also when I enter my pin my whole computer restarted was there an update someone else who has a Lenovo please help me

Oh i do i do i do .... but could u retake the pic. it is kinda blurry

ANSWERED AT 18/02/2020 - 02:06 PM


QUESTION POSTED AT 18/02/2020 - 02:06 PM

Common icons found on the windows desktop are _____. dock my computer my documents recycle bin trash

Answer:

my computer

my documents

recycle bin

Explanation:

Desktop: The desktop encompasses all the contents of the computer screen once Windows starts.

The desktop elements include icons of the most used programs and other utilities.

Most common icons:

My computer: It allows us to see the contents of our computer: folders and files, and access the disk drives (hard disk, CDROM).

My Documents: It is a folder to store documents.

Recycle Bin: Temporary storage place for folders or files deleted from the hard disk, or any external storage device (pen drive, cell phone, camera). You can recover previously deleted folders or files, or delete them permanently.

ANSWERED AT 18/02/2020 - 07:28 AM


QUESTION POSTED AT 18/02/2020 - 07:28 AM

Do i have a virus please helpthis doesn't have anything to do with learning but my computer has been uploading for like 5 days and hasn't stopped and I keep turning it of but now it's been on for like 30 mins and it says stuff like

This means the computer has a map ware device downloaded into the device , my advice to you is to take it to a repair and get it fixed I believe this is a bug or a Virus that you may have accidentally downloaded

ANSWERED AT 18/02/2020 - 12:06 AM


QUESTION POSTED AT 18/02/2020 - 12:06 AM

Write a program that reads in the length and the width of a rectangular yard. Your program should compute the time required (in minutes) to cut the grass at the rate of 2.3 square meters per a second.

All that I can do for you is to give you some tips so that it would be easier for you to complete this work.
So, the first thing you should remember is that you have to make a programm which will accept as input two numbers and, of course floats to be more precise, which is totaly essential!
The next step is 
set up the input, suppose it would be 2.3 and 10.
Next thing, the program you make must be able to compute the area and divide the numbers of your results using the rate of grass cut/second.
Since we decided that it's 10 second'sm, the last thing you shoul do is just to turn seconds into minutes. 
I am pretty sure it will help you to manage well!

ANSWERED AT 17/02/2020 - 10:57 AM


QUESTION POSTED AT 17/02/2020 - 10:57 AM

What are the possible consequences if you fail to identify system requirements correctly and completely?

There are a few consequences for failing to identify system requirements. 

1. Strain on time and effort which can cost money for either a company or yourself (depending if you are an employer, employee, etc).

2. Additional costs for hardware. If you decide to upgrade your hardware on a later time. It will cost additional money for repairs and replacements to adjust.

3. It can cause dissatisfaction to a user if you are working as a technician (for example) which can leave a negative mark on your reputation/resume) 

ANSWERED AT 16/02/2020 - 05:04 PM


QUESTION POSTED AT 16/02/2020 - 05:04 PM

A _____ are devices that permit a user to connect to a digital t-carrier service.

CSU/DSU ( channel service unit / data service unit ) It is a digital-interface device used to connect DTE

ANSWERED AT 16/02/2020 - 04:59 PM


QUESTION POSTED AT 16/02/2020 - 04:59 PM

Trish has bought a new computer, which she plans to start working on after a week. Since Trish has not used computers in the past, she has asked her friends to suggest any preventive measures that she could take to avoid hardware failures. Which of the following suggestions should her friends give her? a. She should completely rely on the power supply of her house. b. She should minimize the use of the computer. c. She should sign an annual maintenance contract (AMC) with her vendor. d. She should allow the computer’s components to get overheated from time to time.

Answer:

C. She should sign an annual maintenance contract (AMC) with her vendor.

Explanation:

Option a is not a very great suggestion. The power supply of her house might fluctuate and even be suddenly interrupted. This might have an adverse effect on certain components of the computer such as the hard disk especially in the case of sudden shutdown of the system. It would be better if she was told to get an Uninterrupted Power Supply (UPS).

Option b is also not a very good one. I mean, what is the essence of having a computer when I'll have to minimize its use. Computers are designed to be used all day long. It is meant to be used anytime it is needed.

Option d is, as a matter of fact, a very bad suggestion. Allowing the components to get overheated will definitely cause hardware failures. It could damage the motherboard of the system.

The best option is that of c. Signing an annual maintenance contract(AMC) with her service provider (vendor in this case) will not only ensure the avoidance of hardware failures but also;

1. help her save money

2. make her have experts, that will handle her system, at her disposal

3. allow her access support in the case of emergencies.

Hope this helps!

ANSWERED AT 15/02/2020 - 11:32 PM


QUESTION POSTED AT 15/02/2020 - 11:32 PM

What is a system software?

System software refers to programs that either come pre-installed on your device, or are downloaded.

ANSWERED AT 15/02/2020 - 10:40 PM


QUESTION POSTED AT 15/02/2020 - 10:40 PM

Write a loop that reads positive integers from standard input, printing out those values that are greater than 100, each on a separate line, the loop terminates when it reads an integer that is not positive.

//use java not javascript
Scanner scan = new Scanner(s); 
int nums[] = new int[2000]; 
int value =1; 
int index = 0; 
\\loop for entering values and save those over 100 in an array 
While( value >= 0 ) \\ as long input is positive number loop continues 


System.out.print("Enter an integer : "); 
value = scan.nextInt( ); 
if(value > 100) 

nums[index] = value; 
index++; 




//Next loop prints the array contents on one line with one space 
for( int i =0; i < nums.length; i++) 

if(nums[i] > 100) 
System.out.print(n

ANSWERED AT 11/02/2020 - 05:14 PM


QUESTION POSTED AT 11/02/2020 - 05:14 PM

On what basis can you categorize the generations of computers

what the answer to this question....


ANSWERED AT 11/02/2020 - 02:26 PM


QUESTION POSTED AT 11/02/2020 - 02:26 PM

Some files appear dimmed in one of the default folders on your computer. What would be the best course of action? A. Leave the files as they are B. Delete the files C. Rename the files D. Move the files

If some files appear dimmed in one of the default folders on your computer, the best course of action would be to A. leave the files as they are.
These files are probably either hidden or system files, which are never meant to be deleted or moved.

ANSWERED AT 09/02/2020 - 08:20 AM


QUESTION POSTED AT 09/02/2020 - 08:20 AM

What program controls the hardware and software in a computer?

The operating system controls hardware and soft

ANSWERED AT 09/02/2020 - 07:27 AM


QUESTION POSTED AT 09/02/2020 - 07:27 AM