Department of Education SPTVE COMPUTER SYSTEMS SERVICING (CSS) 9 Testing Electronic Components Module 1 GREGORIO S. QUINERI Writer MARIA TERESA RESOS Validator Directions: Choose the letter of the correct answer. Use a separate sheet of paper for your answers. 5. 1. A set of transistors that is the controller or ‘brain’ of an electronic circuit a. capacitor b. integrated circuit c. diode d. resistor 2. A semiconductor device used to amplify and switch electronic signals and electrical power. a. transistor b. capacitor c. printed circuit board d. cathode 3. It neutralizes static charges in the air, providing a workspace with extra ESD protection. a. ESD clothing b. ionizer c. anti – static wrist strap d. multi-meter 4. Defined in terms of resistance and watts a. alternating current (AC) b. electricity c. electronics d. direct current (DC) A complete and closed path through which electric current can flow. a. circuit board b. integrated circuit c. printed circuit board d. circuit 6. It is basically a special type of diode that lights up when electricity passes through it. a. switch b. battery c. light emitting diode d. breadboard 7. A measuring instrument which measures the voltage across any two points of an electric circuit. a. DC voltmeter b. AC voltmeter c. ammeter d. voltmeter 8. This is a type of diode used in microwave applications. a. photodiode b. tunnel diode c. varactor diode d. zener diode 9. Which of the following is the symbol of capacitor. c. d. a. b. 10. a combination of hardware and software integrated on a chip. a. antivirus c. BIOS b. firmware d. POST 2 11. Validates that your product functions acceptably for the market in which you are releasing your product. a. Efficiency c. Validity b. Performance d. Effectiveness 12. It performed to provide an independent analysis of a product in terms of how easy or difficult it is to use. a. Computerization c. Automation b. Usability d. Inspecting equipment 13. A good field technician is able to foresee the outcomes and effects of various IT strategies. a. Validity c. Functionality b. Automation d. Consulting and advising others 14. It describes the product’s capabilities and limitations. a. Efficiency c. Performance b. Effectiveness d. Acceptability 15. These are used for picking small parts in the computer unit. a. Soldering Iron c. Pliers and Tweezers b. Thermal Paste d. Screw Drivers 16. A technician is troubleshooting a computer that has lost connectivity to the network. After data is gathered from the customer, which two tasks should the technician complete next? a. Verify that the customer has a valid IP address? b. Verify that the compute has the most-up-to date version of OS’ c. Try to log in as a different user d. Check that the NIC link light is lit 17. A device used for testing the network connection. a. Crimping tool c. Cable Tester b. Punch down tool d, Loopback Tester 18. An accumulation of electric charge on an insulated body. a. Direct Current c. Static Electricity b. Alternating Current d. Electric Charge 19. You can delete unwanted programs and files from your computer and this will be helpful in increasing the speed a. Defragmenter c. System File Checker b. Disk Clean up d. Disk Management Tool 20. These are usually resolved by updating the program to its latest version. a. System error c. Application errors b. Browser status errors d. Post Code error 3 LO 1 Determine Criteria for Testing Electronic Components Indeed, computer systems is made of several parts and these parts comprise of electronic components. Thus, all electronic elements are susceptible to damage if not properly taking care of and as a whole, computer systems is certainly test for its functionality and among others. In this lesson, you will understand and find out different criteria of testing electronic components. But first, answer the following activities. Direction: Arrange the following computer hardware into four categories namely: Input Device, Output Device, Storage Device and Processing Device. Write your answers on a separate sheet of paper. HARD DRIVE CPU SPEAKER ROM KEYBOARD NETWORK CARD VDEO CARD 4 PRINTER MOTHERBOARD WEBCAM MONITOR SOUND CARD OPTICAL DRIVE RAM MICROPHONE A. Direction: Only select the first and last character of the word you found. Write your answer on a separate sheet of paper. 7 B. What do you think a good Computer Technician should have? List down at least five (5) qualities or traits that he/she should possess. 1. 2. 3. 4. 5. _____ _____ _____ _____ _____ _ _ _ _ _ Electronic Components are essential elements of circuit which helps in its functioning. These elements are found in the tangible aspect of computer system which is commonly known as the computer hardware, most of these elements are found especially in the inside box of the system unit. Below are the two basic types of electronic components which are essential to recognize before going to testing procedure. ELECTRONIC COMPONENTS Active Components Passive Components Active Components Active devices supply energy to the circuit. Transistor: Transistor is formed from two words “Transfer” and “Resistor”. Thus, it transfers resistance from one part of circuit to other. 8 Batteries: Batteries generate electrical energy by the process of electrochemical reaction which takes place inside it. Cathode Ray Tube: It is used in picture tube in television circuit. It is controlled by an electron gun. Electron beam strikes the phosphor screen and it gets illuminated. Passive Components These are the components which obstruct the current or supplied energy. Resistor: Resistor has the characteristics to provide hindrance or obstruction in the path of current. Resistors are generally used as current limiter for protecting active components from breakdown. 9 Inductor: Inductor allows DC to pass through it and block AC. It provides low resistance to DC while high resistance to AC. Thus, it is used in the devices which are used in application where AC ripples are not desirable. Besides, inductor stores energy in the form of magnetic field. Capacitor: Capacitor is used in the circuit to store electric charge. It is significant in rectifier circuit, filter circuit etc. Besides, the property of capacitor to provide low reactance to AC and high resistance to DC is of vital importance in case of voltage regulator circuit. It filters AC ripples. These devices are significant because without these passive devices, active devices cannot accomplish their function. 10 Criteria for Testing Electronic Components based on Manufacturer Standard Procedure Computer Systems essential parts are hardware and software which are to be tested to make sure it follows quality standard. Below are the following criteria for testing electronic components: Functionality - Can be performed on hardware or software products to verify that your product functions exactly as designed. The general purpose of hardware functionality testing is to verify if the product performs as expected and documented, typically in technical or functional specifications. Developers creating a new product start from a functional specification, which describes the product’s capabilities and limitations Compatibility - Is performed to make sure your product functions in its targeted use environment (e.g., different platforms, operating systems, chipsets, peripherals, manufacturers, etc.). Often vendors also refer to compatibility testing as interoperability testing – either term refers to making sure your product functions correctly with other products in the “real world” when released. Performance - Validates that your product functions acceptably for the market in which you are releasing your product. No one wants a product that they have to wait for or that feels sluggish. Usability - Is performed to provide an independent analysis of a product in terms of how easy or difficult it is to use. This may cover documentation, installation, and product use cases. In addition, a range of different user experience levels may be evaluated. Automation - Allows you to perform repetitive testing quickly and easily by scripting your product with one of many different industry tools. Competitive Analysis - Compares your product to similar products already in the market place. These may be products that you’ve previously released or competitive products, so that you can highlight your advantages – whether performance or usability. Criteria for Testing Electronic Components Based on Skills of Computer Hardware / Network Technician These are the skills of Computer / IT Technician which are requirements or criteria when handling computer hardware Interacting with computers. Using a computer or computing system for a computer hardware field technician means speaking the machine’s language. Be sure you understand how computers interact with humans and learn to match your thinking to the machine. 11 Collecting data and information. Being a computer hardware field technician is not unlike being a private eye. Much of your job involves diagnosing and repairing a problem; this task has a lot in common with solving a mystery. A big part of that job involves collecting as much pertinent information as possible in order to diagnose the problem. Problem-solving and decision-making. Problem-solving is vital to being a computer hardware field technician. Connecting the dots to determine the problem and then deciding the correct course of action to take in order to solve the problem is a very important part of the job. Communication. Communication is a key skill in almost any job. Every day we communicate with others, whether it’s face to face, on the phone, or via email or instant message. A computer hardware field technician must be able to communicate effectively with clients and co-workers to share information and solve the problems that arise in their everyday life. Consulting and advising others. A computer hardware field technician often ends up advising others on a variety of tasks. A good field technician is able to foresee the outcomes and effects of various IT strategies and advise management as to the best course of action accordingly. Inspecting equipment, structures or material. A computer hardware field technician must ensure that the equipment is operating properly within its environment. In order to determine what is not working properly, a technician must have a firm understanding of the equipment and all its components and how they work together to perform properly. This will help the computer hardware fi eld technician narrow down the options when troubleshooting. Documenting and recording information. There are baseline metrics that computer hardware field technicians must keep track of in order to properly diagnose a healthy network or computer system. This information is essential to ensuring the system is running properly. It is important that technicians monitor the efficiency of computer hardware and make adjustments if the system is running slowly. Developing objectives and strategies. In order to create a smooth working network, a good IT technician must maintain a proactive strategy that involves maintenance, frequent virus scans, and creating safeguards. These activities will help to prevent any major issues or problems. Training and teaching others. There are two main tiers of training for a computer hardware field technician. The first is creating a best-practices environment by offering continual training that keeps staff members up-to-date on new developments in the IT field. The other is training users on how to correct or prevent any problems or issues that may arise. 12 A. Directions: Complete the following words with the correct letters and identify this element if belongs to active or passive component. Write your answer on a separate sheet of paper. ELECTRONIC COMPONENTS 1. C_____TO _ 2. __T__RY 3. I _ _ _ C _ _R 4. C __ 5. _ E _ _ S _ O_ TYPE OF COMPONENT B. Directions: Choose an alternative word or words of the following criteria of testing electronic components. Select your answer found inside the box and write your answer on a separate sheet of paper. Coaching Productiveness Scrutinize Ease of Use Purpose Marketing Mentoring Warranty Appropriate Data Collection Transmission Planning Task Critical Thinking Human-computer interaction 13 CRITERIA ALTERNATIVE WORD/S 1. Functionality 2. Compatibility 3. Performance 4. Usability 5. Automation 6. Competitive Analysis 7. Interacting with computers 8. Collecting data and information 9. Problem-solving and decision-making 10. Communication 11. Consulting and advising others 12. Inspecting equipment, structures or material 13 Documenting and recording information 14. Developing objectives and strategies 15. Training and teaching others Let us now check your understanding after going through with different activities. Answer each question in a separate sheet of paper. 1. What is your understanding about the computer hardware and electronic components? How do theydiffer? _____ _____ _____ _____ 14 2. Why do you think that recognizing electronic components is important? _____ _____ _____ _____ 3. How these criteria for testing electronic components can be related to your previous lesson in safety procedure in the workplace or occupational health and safety( OHS )? _____ _____ _____ _____ Electronic components are not only found in the computer hardware but also in various appliances that can be found in your household. A. Complete the table with a list of electronic components be found in your household. Write your answer on a separate sheet of paper. Things that can be run either by battery or electricity Things that can be run by electricity 15 B. When your equipment for example electric fan seems like not functioning, what will you do? Write your answer on a separate sheet of paper. • Direction: Choose only the letter of the correct answer. Write your answer on a separate sheet of paper. 1. This refers to making sure your product functions correctly withother products in the “real world” when released. c. Functionality d. Usability a. Automation b. Compatibility 2. Pertains to keeping the staff members up-to-date on new developments in the IT field. a. Interacting with computers c. Performance b. Coaching d. Training ang teaching others 3. It describes the product’s capabilities and limitations. a. Competitive Analysis c. Automation b. Functionality d. Communication 4. It pertains to sharing information and solving the problems that arise in their everyday life. 16 a. Communication b. Automation c. Functionality d. Compatibility 5. Allows you to perform repetitive testing quickly and easily by scripting your product with one of many different industry tools. a. Consulting and advising others c. Automation b. Training and teaching others d. Usability • Directions: Match Column A with those in Column B. Write onlythe letter of your answer. Column A Column B 6. a. resistor b. capacitor 7. c. inductor 8. d. transistor 9. e. battery 10. 17 • Direction: Compare and contrast the criteria of testing electronic components between manufacturer standard procedure and skills of an I.T. Technician. 18 Rubrics: Compare and Contrast Similarities Differences Exceeds Expectations 5 pts. Student was able to find 2 or more similarities between the criteria and did not repeat. At least one piece of textual evidence was given for each similarity. Textual evidence was chosen carefully and clearly fits the situation. Meet Expectations 3 pts. Student was able to find 2 similarities between the criteria. At least one piece of textual evidence was given for each similarity. Textual evidence somewhat fits the situation. Does not Meet Expectations 1 pt. Student was able to find 1 similarity between the criteria. No textual evidence was given or the evidence did not support the situation. Student was able to find 2 or more differences between the criteria and did not repeat. At least one piece of textual evidence was given for each difference. Textual evidence was chosen carefully and clearly fits the situation. Student was able to find 2 differences between the criteria. At least one piece of textual evidence was given for each difference. Textual evidence somewhat fits the situation. Student was able to find 1 difference between the criteria. No textual evidence was given or the evidence did not support the situation https://www.rcampus.com/rubricshowc.cfm?code=Y2XW88C&sp=yes& 1. Name and draw the symbols of all electronic components especially, related to computer hardware then write its function. 2. Try to make your own criteria for testing electronic components. 19
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