Information & Communications Technology (ICT) COMPUTER HARDWARE SERVICING Introduction Technology and Livelihood Education (TLE) is one of the. Your success in this exploratory course on Computer Hardware Servicing is shown in your ability to perform the performance 10/courtdadelorec.ga k to 12 Pc Hardware Servicing Learning Module - Download as PDF File .pdf), Text File .txt) or read online.
|Language:||English, Spanish, Hindi|
|Distribution:||Free* [*Register to download]|
ICT-Computer Hardware Servicing 7&8 LM - Download as PDF File .pdf), Text File .txt) or read online. LEARNING MODULE AND TEACHERS GUIDE. Computer Hardware Servicing - Learner's Module - Download as PDF File .pdf) or read online. CHS Learner's Module for Grade 7 credits to DepEd / TESDA. COMPUTER HARDWARE SERVICING 1K to 12 – Technology and Livelihood /ToolboxSafetyTopics//courtdadelorec.ga
Figure 5. It does not only connect the parts of the CPU to each other. Figure 6. Installed in the back corner of the PC case. Printed-circuit boards also called interface cards that enable the computer to use a peripheral device for which it does not have the necessary connections or circuit boards. Adapter Network Adapter 7. Expansion Bus 6. Power supply Expansion Bus.
The hard drive is used as permanent storage for data. In a Windows computer. Optical Drive. CD ROM Figure 8. There are three types of optical drives: Compact Disc CD.
An optical drive is a storage device that uses lasers to read data on the optical media. Figure 9. Designed to optically access data stored on a DVD. Also known as hard drive.
Figure A laser moves back and forth near the disk surface and accesses data at a very fast rate. Power supply 9. Pointing Devices. Keyboard 2. Accepts data and instructions from the user or from another computer system.
An input device used to move the pointer cursor on screen. Two 2 Types of Input Devices 1. Three Categories of Direct Entry Devices 1. Mouse Input Devices. Direct-entry devices create machine-readable data on paper.
The most common 'pointing device' used in PCs. Keyboard Entry — Data is inputted to the computer through a keyboard. Direct Entry — A form of input that does not require data to be keyed by someone sitting at a keyboard. Data is transferred to the PC over a short cable with a circular 6-pin Mini-din connector that plugs into the back of the motherboard. The first input device developed for the PC.
Every mouse has two buttons and most have one or two scroll wheels. A display screen that is sensitive to the touch of a finger or stylus. Often mistakenly called a mouse. Digitizer Tablet The user brings the pen to the desired point on screen and presses the pen button to make contact. A light-sensitive stylus wired to a video terminal used to draw pictures or select menu options.
Used in myriad applications. The touch screen became wildly popular for smart phones and tablets. Also called a "graphics tablet. A graphics drawing tablet used for sketching new images or tracing old ones. A device that can read text or illustrations printed on paper and translates the information into a form the computer can use.
Image scanner Figure Microphones Bar Code Reader 3. Audio input devices such as microphones allow users to speak to the computer in order to record a voice message or navigate software. Audio input devices also known as speech or voice recognition systems that allow a user to send audio signals to a computer for processing. Scanning Devices. Cathode Ray Tube Monitor b. LCD Monitors. It displays information in visual form. Computer Display Monitor. The portion of the monitor that displays the information is called the screen or video display terminal.
Any piece of computer hardware that displays results after the computer has processed the input data that has been entered. CRT Monitors. Liquid Crystal Display Monitor They are relatively big 14" to 16" deep and heavy over 15 lbs. Output Devices. It has recently been made commercially available as monitors for desktop PCs. Types of Monitor a. Light Emitting Diode Monitor 2. Each crystal.
An electric current passed through the liquid causes the crystals to align so that light cannot pass through them. LCD Projectors.
LCD Projector 3. A display and lighting technology used in almost every electrical and electronic product on the market. Smart Board. A type of display screen that has a touch sensitive transparent panel covering the screen. Smart Board Similar to a laser printer.
Line printers are very fast. Laser printers produce very high quality text and graphics. A device that prints text or illustrations on paper. Ink-jet printers produce high-quality text and graphics. Thermal Printer Contains a chain of characters or pins that print an entire line at one time. Uses the same technology as copy machines. An inexpensive printer that works by pushing heated pins against heat-sensitive paper.
Thermal printers are widely used in calculators and fax machines.
Speakers allow you to listen to music and hear sound effects from your computer. It has 25 pins. External connecting sockets on the outside of the computer. Power Port Intended for power cord. This is only for old model printer.
This is a pathway into and out of the computer. A port lets users plug in outside peripherals. Used to connect monitors. It has 15 pins and it is a female port.
It is used to connect latest model printers. Table 1. It is a female port. They may be built into the system unit or connected with cables. Used to play sound. Table 2. Cables and Wires. This type of jack is intended for the audio and microphone port. A cable is most often two or more wires running side by side and bonded. Intended for plugging in the speaker or headset.
Illustration A physical interface often used for terminating twisted pair type cables used to connect computers onto a local-area networks LAN. This printer cable jack is intended for the parallel port. Modern or new model of peripherals like printer. Software can be split into two main types: MS Excel.
Quattro Pro. Examples of application software are as follows: Illustration Function Power cord is the most important cord because it connects the computer to the main source of electricity to make it functional. Used to structure a database. Lotus Application Software — Designed to help the user to perform singular or multiple related tasks. MS Word. Database management software. Common operating systems include Windows. Spreadsheet software. Fox Pro. Data is organized as fields and records for easy retrieval.
Ami Pro. Word processing software. System Software — Any software required to support the production or execution of application programs. MS Access. An electronic spreadsheet consisting of rows and columns is used to present and analyze data.
Graphic software. Refers to people involved in the data processing operations such as the system administrator. Graphics programs display results of data manipulation for easier analysis and presentation. Adobe Photoshop 1. Harvard Graphics. Macromedia Flash. Process Task 1: Performance Test Direction: Given the different cables. Task 2: In the puzzle below, look for the 10 hidden computer components and give their role on the computer system.
Reflect and Understand Task 1: View actual personal computer and discuss its parts and function. Utilizing the Internet and the website YouTube, view a video regarding parts of the computer. Use the URLs below: After watching the videos, answer the following questions: Explain your answer. Transfer Direction: Draw and label the different hardware of a computer. After drawing and labeling the hardware components, group them into Input Devices, Output Devices and Storage Devices.
Wire cutter Part Retriever c. Know Preliminary Activity: Cable ties b. Which tool is sometimes called a nut driver? It is used to tighten nuts in the same way that a screwdriver tightens screws? Wire cutter 2. Which tool is used to loosen or tighten slotted screws?
Compressed air b. Wire cutter 5. Write your answers on a separate sheet of paper. Which tool is used to bundle cables neatly inside and outside of a computer?
Which tool is used to blow away dust and debris from different computer parts without touching the components? Hex driver d. Torx screwdriver d. Lint-free Cloth d. Wire cutter 4. Wire cutter 3. Philips head screwdriver b. Which tool is used to loosen or tighten cross-head screws?
Flat head screwdriver 7. Anti-static mat c. Which tool is used to clean different computer components without scratching or leaving debris? Flat head screwdriver 6. Which tool is used to retrieve parts from location that are too small for your hand to fit? Which tool is used for hardware to stand on to prevent static electricity from building up? Flat head screwdriver 9. Flat head screwdriver 8. Which tool is used to loosen or tighten screws that have a star-like depression on the top.
Which tool is used to strip and cut wires? Test Direction: Select the letter of the correct answer. As you gain experience. Grounded antistatic work mats used with antistatic wrist straps provide the most basic means for the controlled discharge of electrostatic electricity. Examples of ESD Tools: Anti-static wrist strap — Used to prevent ESD damage to computer equipment.
Hardware tools are grouped into these four categories: The friction of moving air alone will charge suspended particles and cause the buildup of static electrical charges on people and objects in the environment. Hand tools can be used manually or electrically powered. Used to loosen or tighten screws that have a star-like depression on the top. Torx Screwdriver.
Examples of Hand Tools are as follows: Table 3. Hex Driver — Sometimes called a nut driver. Needle-Nose Pliers — Used to hold small parts. Philips Head Screwdriver — Used to loosen or tighten crosshead screws. Hand Tools A hand tool is a device for performing work on a material or a physical system using only hands.
Part Retriever — Used to retrieve parts from location that is too small for your hand to fit. Using these tools ensures that computer components are not damaged during cleaning. Table 4. Cleaning Tools Having the appropriate cleaning tools is essential when maintaining or repairing computers. Tool Description Wire Cutter — Used to strip and cut wires. Cleaning Tools Tools Description Lint-free Cloth — Used to clean different computer components without scratching or leaving debris. Tweezers — Used to manipulate small parts.
Flashlight — Used to light up areas that you cannot see well. Loopback Adapter — Used to test the functionality of computer ports.
Diagnostic tools Tools Description Multimeter — Used to test the integrity of circuits and the quality of electricity in computer components. Tools Description Compressed Air — Used to blow away dust and debris from different computer parts without touching the components. Parts Organizer — Used to hold screw.
Here are the most popular tools for diagnosing your computer problems: Table 5. Diagnostic Tools Computers are easier to use and more dependable with each new generation of hardware and operating system update. Cable Ties — Used to bundle cables neatly inside and outside of a computer. Never wear an antistatic wrist strap if you are repairing a monitor or CRT. Magnetized tools should not be used around electronic devices.
Attach the wire on the same side of the equipment as the arm wearing the antistatic wrist strap to keep the wire out of the way while you are working. Connect the computer to the mat with the cable.
If excessive force is needed to remove or add a component. Proper Use of Anti. Lay the computer on the mat. Use the proper type and size of screwdriver by matching it to the screw. Pencils should not be used inside the computer because the pencil lead can act as a conductor and may damage the computer components.
Proper Use of Antistatic Mat 1. Connect the mat to a reliable electrical ground with its cable. The connection will keep your body at the same voltage potential as the computer. Connect the cable to the metal chassis of the computer. Do not over tighten screws because the threads may become stripped.
Wrap the strap around your wrist. Use compressed air to clean heat sinks. Write your answers on the space provided before each tool. Name a Tool Directions: Name the tools presented below. Before cleaning any device. LCD screen. Use Isopropyl alcohol and lint-free swabs to clean RAM. CRT screen and mouse. Proper Use of Cleaning Materials To clean computers and accessories: Use mild cleaning solution and lint-free cloth to clean computer cases.
Use hand-held vacuum cleaner with a brush attachment to clean a keyboard. Hand tool. You will be rated according to the scoring rubric below: Performance test Directions: Lesson 4: Assembly and Disassembly of a Personal Computer One of the basic skills that you must acquire in computer hardware servicing is to independently assemble and disassemble a personal computer or simply setting up a PC.
After familiarizing with all the tools and safety precautions I believe that you are now ready to gain another experience in CHS by going through this lesson. Personal Computer Disassembly Before starting computer disassembly, make sure you have the tools you need and they're all close by and handy and be sure to have a container to keep the screws in so you have them when you want to put things back together.
Unplugging - The first thing you do is to unplug every cable that is plugged in to your computer. Just unplug all the cables for safety purposes. Now that your computer is fully unplugged, move your PC to a clean work space, preferably a carpet. The carpet is better than tile, because screws and other small parts will roll around.
On most computer cases, there will be large knobs that you can unscrew by hand or by screw driver on the back-right side of the computer. The left side has small screws because on that side you can't access much on the inside.
Screw at the back of computer chasis Once the screws are removed, you can remove the side panels.
On most computers, they just slide off. Start with the left side panel the side that once had the knobs , slide it towards the back of the computer. Now you can remove the left panel.
Just like the other side, slide it towards the back of the computer. This is done so you do not shock your motherboard or other parts.
Removing the System Fan - First, unplug the fan from the motherboard. You can find the plug by following the wire from the fan. Next, you will have to unscrew the fan from the outside. You should now be able to lift the fan out of the PC. Removing the system fan Step4. The CPU fan plugs into the motherboard in an awkward place, that is hard to access.
But just follow the wires and you should easily find it. To remove the fan from the heat sink, remove the four screws securing it in place. Removing the CPU fan Step5. Power Supply - The first thing to do is unplug every wire coming from the power supply. Once everything is unplugged, unscrew the four screws holding the power supply in place, on the back of the computer.
Next, push the power supply from the outside, and then lift it out. Unscrew the power supply Step6. Once that is completed, pull on the tab securing the drive in place, then push it out from the inside.
Hard Drive - First, unplug the connector at the back of the slot, and unplug the other end from the motherboard. Also unplug the SATA cable from the motherboard and the hard drive. Pull on the tab, then slide the slot out.
Unplugging the Hard Drive connector To remove the hard drive from the side of the slot, unscrew the four screws securing it in place. You must be very careful not to drop the hard drive, since it is very delicate!
Removing the hard drive from the side of the slot Step8. Removing the Memory Step9. Motherboard - The motherboard has seven screws holding it to the frame, which are indicated by large white circles around them. Remove them and then lift the motherboard out of the frame. Next in line is the PC Assembly, exert more effort and patience. Just follow the step by step procedures and illustrations below and surely you can make it. Good Luck!!! Step by Step Computer Assembly Step 1.
Prepare your workplace 1. Take Inventory: Before you start, take an inventory of your parts. Do not begin assembling your computer if you don't have everything you need.
Begin the step-by-step process once you are ready with everything you need. Take inventory of the Different Computer Parts 2. Make Space, Make Time: Building a PC takes up space - about a dining room table worth. So make sure you have plenty of working room and a few hours to proceed with minimal interruption. Work on a flat, stable table top surface, or bare floor, where you have room to layout all of the items. Prepare Grounding Protection: Use an inexpensive antistatic wrist strap.
It is the perfect preventive measure if you have no alternative to working on carpet. Remember, a table top or bare floor is always the best place to build your system. Make sure you are wearing your antistatic wrist strap correctly it does you no good at all if you do not wear it! Look at Figure 42 for details. Wearing the Anti- static Wrist Strap Correctly 4.
Have the Drivers Ready: Assuming you have another internet connected PC, download the latest drivers from the vendors' websites for each component you will be installing. Sometimes drivers are updated between the time the component was manufactured and the time you are installing it. It is always best to have the latest. Copy them to a CD for easy access. Step 2. Prepare the Motherboard 1. Great care should be taken when installing the motherboard. First, take the board out of its packaging and put it on top of the antistatic bag it came in see Figure Remember, you always want to safeguard your components from potentially hazardous static electricity wear your strap.
Motherboard in an Antistatic Bag 2. Next, review the motherboard manual, to make sure you are familiar with the motherboard layout and understand which socket is which.
Manuals are extremely helpful, usually easy to read, and include illustrations. Below you can find instructions on how to install the processor, the heat sink and the memory modules on the motherboard. You should not place the motherboard in the computer case until you are told to do so. Step 3. Install the CPU 1. Use the unlocking mechanism to open the CPU socket which is usually a lever. Carefully line up the pins and place the chip in its socket; it will fit only when oriented the proper way.
An arrow or a missing pin on one corner of the chip will show you how to line things up. Lower the lever to lock the CPU into place. Install CPU Step 4. Follow the manufacturer's directions to install the heat sink and the fan that will cool the processor. If you bought an OEM CPU and a separate heat sink, you may need to spread a thin layer of the thermal grease that came with the heat sink over the chip to ensure proper transfer of heat some heat sinks come with this grease already applied.
Attach the clip that holds the heat sink in place keeping in mind that it may require a fair amount of force. Again, follow the instructions that came with the heat sink.
They will show you how to fit it correctly. If you are in doubt, you can visit the manufacturer's website for more information. Plug the CPU fan's power connector into the proper connector on the motherboard. Step 5. Install Memory RAM Modules In order to install the memory modules, insert them into the proper sockets Figure 48 and push down firmly but evenly until the clips on both sides of the socket pop into place. If your motherboard supports dual-channel memory, consult the user manual to determine which pairs of RAM sockets you should use.
The motherboard and the CPU are the brain and nerve center of your PC, so selecting these components is the most important decision you'll make. Place the motherboard into the case 1. Some PC cases have a removable motherboard tray. If yours does, remove the screws holding it in place and pull it out of the case Figure Remove Motherboard Tray 2.
Note the pattern of the holes in your motherboard Figure 50 , and screw brass standoffs into the motherboard tray or into the PC case in the correct locations ALWAYS check the manual and follow their instructions to the letter.
Screw Brass Standoffs Into the Motherboard 3. Carefully position the motherboard on top of the brass standoffs Figure 51 , line up all the holes, and use the screws that accompanied the case to fasten down the motherboard. If you are using a removable tray in your system, slide the tray and motherboard back into the case and then secure the tray. Mount the Motherboard Step 7. Connect the Power Supply Making the proper connections is crucial to successfully assembling your PC system.
Fortunately, manufacturers provide color-coded power cables and unique connector shapes to make the job easy. First, plug the large ATX power connector Figure 53 from your power supply into the matching port on your motherboard. Look Figure X for details. Locate the smaller, square processor power connector Figure 54 you cannot miss it - it is the one sprouting the yellow and black wires and attach it to the motherboard. As always, refer to your motherboard's manual for the exact locations.
Use your motherboard user manual and find the description about front-panel connectors. Square Processor Power Connector NOTE You are going to be doing work that requires attention to detail and can be quite frustrating if you do not go into it with the right attitude. Attach each of the tiny leads from the power and reset switches Figure 56 , the hard- disk activity lights, the PC speaker, and any front-panel USB and FireWire ports to the corresponding pin on your motherboard. The needle-nose pliers are useful for manipulating small pieces.
Connect the different Leads Step 8. Remove the backplane cover 2. Install the graphics board in that slot, and then secure the card with a screw Figure Install the Graphics Board Step 9. Install Internal Drives Now it is time to install your drives. This is an easy process, but it requires attention to detail. Make any necessary changes to jumpers on the drives before mounting them in the case. Many cases have removable drive rails or cages to house drives.
Use the included screws to attach your drives to the rails or cage, and slide them into the case. For externally accessible drives such as a DVD recorder, you can save time by installing one drive rail and sliding the drive in for a test fitting to make sure that its front is flush with the case Figure When the drives are installed, connect power and data cables to each one. Parallel ATA drives use wide, flat data cables that can be installed only in the correct way.
Floppy drives use a similar but smaller cable; SATA drives use a thin, 1cm-wide data cable. SATA drives use a new type of power connector that many power supplies don't come with. Fortunately, many motherboards ship with adapters for converting a standard four-pin power connector to a SATA power connector Figure Connect Power Connector Step Install the Add- in Cards 1.
For each add-in card, you must choose a free PCI slot. Remove its backplane cover to allow access from the rear of the case. Carefully position the card above the slot, and press down firmly to seat the card Figure Secure the card with a screw. Add- in Cards Many motherboards have additional sound connectors or ports housed on small add-in boards.
Some of these plug into slots on the motherboard; others screw into the back of the case in place of slot covers.
Usually the additional ports are not essential to your PC's operation. For example, if you install a sound card, you do not need connectors to the motherboard's built-in sound chip. Check your motherboard manual to determine what each of these boards does. Connecting Peripherals of a Personal Computer When attaching hardware and peripherals of the computer, ensure that they are connected to the correct locations or ports. So, you must know first the different ports that can be found in the back panel of the computer.
Keep in mind: When attaching cables, never force a connection. Plug in the power cable after you have connected all other cables. Attach the monitor cable to the video port. Secure the cable by tightening the screws on the connector. Attach the Monitor Cable Step 3.
So, keep moving. Plug the Keyboard Cable Step 4. Plug the Mouse Cable Step 5. Plug the network cable into the network port. Plug the Network Cable Step 7. Plug the power cable into the power supply. Plug the Power Cable After connecting all the cables into their proper places, the picture in the next page should be the appearance of the back panel of your PC.
Good luck! Rearrange the following procedures in their proper order. Use numbers to indicate their order of precedence. The first number is done for you. Unplugging all the cables and wires B. Prepare your workplace Task 1: Time to Browse! Utilizing the internet, watch video presentations about connecting PC parts and read additional books for computer hardware servicing to broaden your ideas and skills. You can use the following URLs for your reference.
Group and Learn Direction: Have a group of five 5 people and discuss about the video presentations, have a brain storming about the helpful tips given in the video and try to acquire the techniques on the PC Assembly and disassembly by having an actual activity. Follow the given procedures below and safety precautions must be observed when working.
You will be rated in accordance with the rubrics provided below: Answer the essential questions below according to your experience in connecting hardware and peripherals of a computer.
What is the essence of following the correct procedures in connecting the PC parts? What do you think is the main reason why we should never exert too much force when attaching the cables of PC parts? What is your perspective why the power cable should always be the last on the procedure of attaching parts? What do you feel when you are doing the activity? As a computer technician, why do think skills is a crucial factor?
Team up and Learn!! After completing all the lessons in this module you need to accomplish the final activities provided here. Have an evidence of your activity. Have a journal or narrative report of your performance. Activity 2: Perform the following: Clean all the dirty computers in the computer laboratory 2. Show or exhibit skills in PC assembly and disassembly using the defective computers in the computer laboratory.
Process and Delivery of Computer Hardware Servicing is actually a basic foundation of the higher level of PC troubleshooting and repair. Lesson 1 covers the different components and parts of a computer system. There are different tools and equipments that are required to accomplish a certain task in a given span of time.
In lesson 2, different useful tools are featured as well as the proper way of using them. Understanding computer system is really a brain breaking job, but of course all starts from a little knowledge and eventually into a broader one. This module would help the reader to have at least the basic and primary knowledge of computer system.
Printer cable jack 5. Speaker jack 6. Anti- Static Wrist strap 2. Flat head screw driver 3. Flashlight 4. Lint free cloth 5. Multi- tester 6. Anti static mat 7. Philips head Screw driver 8. Part Retriever 9. Compressed air Loop back adapter Torx Tweezer Hex Computer case Cleaning solution and lint free cloth Mouse Lint free cloth and cleaning solution Keyboard Brush, lint free cloth, mini vacuum cleaner Monitor Cleaning solution and lint free cloth Speaker Brush and lint free cloth Cooling fan Brush, compressed air Heat sink Compressed air, brush Lesson 3: Branding LO 3.
Safety procedures The learner independently LO 1. Inspecting work instructions demonstrates skills in configuration Ia-c-1 understanding of the underlying according to job requirements configuring computer systems 1. Planning and preparing of preparing for configuration configuring computer systems and and networks as prescribed by standard operating procedures networks.
Procedures in using the tools networks and equipment 1. Safety precautions LO 2. Networking devices, media. Internet Protocols IP configuring computer 8. Network Security systems and networks 9. File and Printer Sharing 2. Inspect and test configured computer Systems and networks 1. Procedures in planning and demonstrates skills in computer maintenance of computer IIIa-e-1 understanding of the underlying conducting maintenance and network systems as systems and networks concepts and principles in 3.
Tools and tests equipment 1. PC specifications computer and networks 6. Network functions and systems specifications 1. Safety procedures LO 2. Diagnosis and identification of systems IIIf-j-2 faulty systems 2. Diagnostics software maintaining computer Repair or replace faulty system systems Maintenance of computer 2.
Safety procedures LO 3. Procedures in maintaining systems IVa-e-3 network systems 3. Diagnostics software maintaining network Repair or replace faulty systems systems and cables 3. Burn-in test computer system maintaining network systems 3. Safety procedures LO 4. Computer communications 4. Internet connectivity maintaining network Burn-in test repaired computer systems systems and networks 4.
Documentation of tasks systems and networks to ensure safe operations 4. Schools may offer specializations from the four strands as long as the minimum number of hours for each specialization is met.
Please refer to the sample Curriculum Map on the next page for the number of semesters per ICT specialization and those that have pre-requisites.
Curriculum Maps may be according specializationsTechnology offered by—aComputer school. Computer Hardware Servicing Reviewer. Computer Hardware Servicing Pt. Computer Hardware Servicing Manual. Computer Hardware Servicing. Module1 Computer Hardware Servicing. Computer Hardware Servicing Lectures.