Alex Amado, HW2

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Purdue University *

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10100

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Computer Science

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Dec 6, 2023

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CS 10100 Homework 02 This is Question 1 on Page 1 CS 10100 Homework 02 – Due Thursday, 9/7/2023, 11:59 pm • Delete nothing from this file. • Edit this file to add your typewritten answers to each question. • When your answer includes a diagram make sure that it is clear and large enough to read. • Ensure that your answer fits on the same page as its question. • If you change the pagination of this file or if your complete answer to a question does not fit on the page with that question, then you may receive a lower score. • Export your completed Word file to PDF. • Upload your PDF file to Gradescope.com. It is your responsibility to upload this assignment to its correct place in Gradescope. You may upload multiple times. Your final upload will be scored. Use the download capability to check your upload. • Uploading will be blocked after the due time (plus grace period). • Max score = 10 points; 1 points per question. • The above directions apply for all assignments uploaded to Gradescope. • Why should your answer be on the same page with its question? Answer: Gradescope has been programmed to expect that your PDF file will have exactly one question and your entire answer to it on one page. This allows Gradescope to automatically find and display your answers to the instructional team for scoring. HW02 Q1. Name the four main components of a computer and briefly explain their functions. The 4 main components of a computer are a processor (CPU), memory, storage, and I/O devices. The processor, or CPU for short, is the general brain of the computer, and oversees all the normal, day to day tasks. The memory of the computer, also known as RAM, stores data while the computer is on and running. Storage devices of the computer come in multiple types, SSD or disk storage. These are in charge of storing data and information while the computer is off. The final component, are I/O devices, and these are the other components outside of the internal hardware of the computer, that make the computer useable to users.

CS 10100 Homework 02 This is Question 2 on Page 2 HW02 Q2. What makes a computer different from conventional devices? For instance, explain how a computer would differ from a smoke detector or a microphone. A computer is different than other computing devices because they can perform multiple tasks, and because they are programmable and reprogrammable. You can program and reprogram a computer as many times as you want, in order to change what it does. Smoke detectors and microphones are produced to do one task, and they are (usually) good that one task because you are not able to program and reprogram them.

CS 10100 Homework 02 This is Question 3 on Page 3 HW02 Q3. You are working on an English paper late at night during a thunderstorm. You have just put the finishing touches on your paper and pressed the save button when lightning flashes and your computer loses power. When you woke up and restarted your computer, you were relieved to find that the saved version was completely intact. Was the paper saved to storage or to memory before the power went out? Explain. In this scenario, your saved version was saved to your computer’s storage, because the computer shuts off. Data stored in memory is lost once power to the computer is lost, so that means that your saved paper was saved and stored in storage because it was saved once the power to your computer was off.

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CS 10100 Homework 02 This is Question 4 on Page 4 HW02 Q4. What does it mean when we say I/O devices on a computer can be configured? Give an example of a device that can be attached to a computer temporarily and then detached. This means that you can choose which input/output devices you use, and that you are not locked into which ones you have to use. You as the user of the computer can decide which input/output devices you use, and each person could choose different ones. An example of a device that could be attached temporarily and then detached is a keyboard. You can attach a keyboard to your computer both through Bluetooth or wired directly to the computer. After you are done using the keyboard, you can easily just disconnect it from Bluetooth or unplug the cable, and then the keyboard is disconnected from the computer.

CS 10100 Homework 02 This is Question 5 on Page 5 HW02 Q5. You saved a word document in a folder of the C drive of your computer. Now you want to make changes to the document. You open the document do some modifications. After you finish updating the word document, you print out the word document and save the changes. Which components are being involved during the process? And explain how all the involved computer devices cooperate to complete the task. The three main components that are being used during this process are the processor, memory, and storage. The processor oversees all the editing and word processing of the document and the work of the computer. The memory stores the data of the editing document while the computer is on and running, and then finally, after the computer has turned off, the storage stores the saved document.

CS 10100 Homework 02 This is Question 6 on Page 6 HW02 Q6. You are considering renting a laptop to take with you on your mission trip to Nepal. While there, you will spend a considerable amount of time riding in a car. The roads in Nepal are known to be super bumpy and you are worried about your rental computer getting knocked around while you are on these car rides. You are offered the choice between an SSD storage system or a traditional hard disk storage system. Which storage system is better suited for your trip and why? SSD storage would be better for your trip because they are muhc more reliable than traditional hard disk storage systems. SSD storage systems are more reliable because they do not have any moving parts inside of their physical components, compared to multiple moving parts inside of traditional hard disk storage systems. Because of this, SSD storage systems would be the best in this scenario because they would not get damaged on the bumpy roads since there are no moving components inside of them.

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CS 10100 Homework 02 This is Question 7 on Page 7 HW02 Q7. You accompany your Dad as he goes to computer shopping. He has written down specifications that he would like but has accidentally switched memory and storage. The clerk looks at the specifications and replies “I think you’re going to want more storage than that, and I don’t think you can afford that much memory.” Explain the clerk’s reply. The clerk noticed that this Dad had switched the RAM and storage specifications because he probably wrote down 16 GB of storage, and 512 GB of RAM. Although both memory and storage use Gigabytes (GB), memory is always significantly less than storage. A typical computer has anywhere from 8-16 GB of memory, and anywhere from 256 to 512 GB of storage. So, this clerk saw a super high number for memory, and a really low number for storage and knew that they were switched. It would be a crazy computer if it had 512 GB of RAM and only 16 GB of storage, because not only would it be super expensive since RAM is very expensive, but it would also have no storage for items while the computer is off, but would be very fast while the computer is on.

CS 10100 Homework 02 This is Question 8 on Page 8 HW02 Q8. A key difference component of modern computers is their ability to store things digitally as a string of numbers. What are three examples of “things” that can be stored on a computer that aren’t numbered? (Hint: What are you working on right now?) Everything on the computer is stored as binary. But there are things that can be stored on a computer that are not numbered. These include pdf’s, word documents, and images. These are items that are not just made up of purely text, and therefore are more complex.

CS 10100 Homework 02 This is Question 9 on Page 9 HW02 Q9. One of your friends is an avid online gamer who is in the market for a new computer. While your friend is at a computer store the clerk explains that your friend will want a “fast” computer for optimal online games. The clerk replies “you will want to get a computer with a lot of storage to support all of those games while they are running.” Do you agree or disagree with this answer? Explain. I agree with parts of the clerk’s answer, but I think that the clerk confused RAM and storage. I do agree that if you are an avid gamer, you do want to get a fast computer with both a good amount of RAM and storage. If you want to game on the computer, you want to get a computer with a good amount of RAM, such as 16 or even in some cases 32 GB to support the games while they are running. But then you want to also get a good amount of storage, such as 512 or even 1000 GB of storage to support and store the games while you are not currently playing them when your computer is off.

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CS 10100 Homework 02 This is Question 10 on Page 10 HW02 Q10. A webcam is a camera that connects to a computer. It captures either still pictures or motion video, and with the aid of software, can transmit its video on the Internet in real- time. Is the webcam an input device or an output device? List three other devices that can be used with a computer but or not explicitly inside of the computer. A webcam is an example of an input device because it is taking data from the outside world and transmitting it to the computer. A webcam takes data it captures and replays and streams it onto the computer, and in some cases, onto the internet through streaming services, such as YouTube and Twitch. 3 other devices that can be used with a computer, but that are not explicitly inside of the computer are speakers, mice, and microphones.

Alex Amado, HW2

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