ICT Computer Systems Servicing (CSS NC-II) Lessons - Saint Charles Academy

# Archdiocese of Lingayen-Dagupan Catholic Schools ## Saint Charles Academy ### Lessons under Quarter 1: 1. Computer Hardware and Assembly Tools 2. Parts of a Computer and Peripherals 3. Communication Ports, Bios, UEFI 4. Types of Software 5. Creating Portable Bootable Device 6. Installing Operating...

# Archdiocese of Lingayen-Dagupan Catholic Schools ## Saint Charles Academy ### Lessons under Quarter 1: 1. Computer Hardware and Assembly Tools 2. Parts of a Computer and Peripherals 3. Communication Ports, Bios, UEFI 4. Types of Software 5. Creating Portable Bootable Device 6. Installing Operating System ### Objectives Plan unit assembly to ensure OHS policies and procedures are followed in accordance with systems requirements. ## Lesson 1: Computer Hardware ### Hardware It is the physical part of the computer that has physical structure such as system unit, monitor, mouse, and keyboard. Like human brain, it receives data and instructions, then stores them and processes the data according to the instructions given to it. It receives data from input devices, stores them in memory, and displays them through an output device. The physical devices that makeup a computer are referred to as hardware. ### Definition of CPU and Peripherals Computer hardware can be broadly classified into two: CPU and peripherals. The CPU is perhaps the most important part of a computer. The other hardware pieces like input devices, output devices, etc., are called peripherals. #### The CPU It is a hardware within a computer that carries out the instructions of a computer program by performing basic arithmetic, logic, and input/output operations of the system. It is known as the brain of the computer and one of the most important chips in the computer. ### Types of Computer Computers can be generally classified by size and power, and grouped into categories in numerous ways. It classifies the types of computers according to their physical size, processing speed, cost, and number of users. #### Laptop or Handheld Computer Having a small size and low weight is easy to carry anywhere it is powered by battery or AC-powered personal computers that are more portable than desktop computers. This is easy to carry around and preferred by students and business people to meet their assignments and other necessary tasks. #### Desktop Computer It is designed for use at desk or table and is made up of separate components. It has a monitor, keyboard, mouse, usually stays at one location. A workstation a powerful, single-user computer is like a personal computer, but it has a more powerful microprocessor and, in general, a higher-quality monitor. #### Server It is a computer that "serves up" information to other computers on a network. A computer that provides data to other computers. It may serve data to systems on a local area network or a wide area network over the Internet. #### Minicomputer It is a multi-user computer capable of supporting up to hundreds of users simultaneously. It might cost tens of thousands of dollars. It is about the size of a refrigerator and, when combined with various peripherals, might fill a small room. Minicomputers often have several hundred users. #### Mainframe Computer It is a powerful multi-user computer capable of supporting many hundreds or thousands of users simultaneously and it is housed in large rooms or even entire building floors. They cost up to several million dollars, and thousands of users can access the computer simultaneously. In a networked environment, minicomputers and mainframes are both frequently called servers. #### Supercomputer The largest and most expensive computer, it is an extremely fast computer that can perform hundreds of millions of instructions per second, and is often used in research settings and other environments that require a computer with extraordinary computing power. Some supercomputers are capable of performing several billion instructions per second. ### How are data stored? ### Types of Storage #### Hard Drive Use to store data, pictures, music, and videos inside the computer system. #### HDD: Hard Disk Drive #### SSD: Solid State Drive #### Flashdrive Known as a USB stick, USB thumb drive, or pen drive, it is a plug-and-play portable storage device that uses flash memory and is lightweight enough to attach to a keychain. #### Memory Card An electronic data storage device used for storing digital information, typically using flash memory. #### DVD Disc Optical disc technology that can store files ranging from 4.7 to 8 gigabytes. A writable DVD can hold more than 1 GB of information. #### Diskette A magnetic medium house in a rigid plastic cartridge measuring 3.5 inches square, which is a random access, removable data storage medium that can be used with personal computers. ### Computer Assembly and Repair Tools For every job there is the right tool. Make sure that you are familiar with the correct use of each tool and that the correct tool is used for the current task. Skilled use of tools and software makes the job less difficult and ensures that tasks are performed properly and safely. #### Multi-Meter A handheld electronic measuring instrument used to measure electrical voltage, resistance, and other values related to electricity. #### Screwdriver Hand tools used for driving screws and often rotating other machine elements with the mating drive system. #### Flat Screw Driver Hand tool used to drive or fasten negative slotted screws. #### Torx Driver Hand tool used to loosen or tighten screws that have a star-like depression on the top, a feature that is mainly found on laptops. #### Gloves The covering material with a separate sheath for each finger used for hand protection. #### Antistatic Mat Hand tool used to stand on or place hardware on to prevent static electricity from building up. #### Crimping Tool Device used to conjoin two pieces of metal by deforming one or both of them in a way that causes them to hold each other. #### LAN Tester A device designed to measure and test existing LAN connections. #### Tweezers A tool used to hold small sensitive parts of a computer. #### Antistatic Wrist Strap Antistatic device used to safely ground a person working on very sensitive electronic equipment, to prevent the buildup of static electricity on their body, which can result in electrostatic discharge. #### Soldering Iron Tool used to join two or more metal conductors with the support of soldering lead melted around it. #### Desoldering Tool Used to unsolder unwanted parts or components in the circuit with the support of soldering pencil. #### Pliers Hand tool used to hold objects firmly, for bending, or physical compression. #### Long Nose Pliers Used for holding, bending, and stretching the lead of electronics components or connecting wires. #### Side Cutter Plier A tool used for cutting or trimming of connecting wires or terminal leads in the circuit board. #### Cutter A tool used in stripping wires. #### Wire Stripper A portable handheld tool used by workers, especially electricians, for removing the protective coating of an electric wire in order to replace or repair the wire. ## Identify the Tools The document contains various images for different types of computer assembly and repair tools, including: * Soldering Iron * Pliers * Cutter * Long Nose Pliers ## Identify the Types of Computer The document contains various images for different types of computer, including: * Mainframe Computer * Supercomputer * Server * Desktop Computer * Laptop Computer ## Identify the Types of Storage The document contains various images for different types of storage, including: * DVD * Hard Disk Drive * Solid State Drive * Flashdrive * Memory Card