Questions and Answers
OHS stands for Occupational Health and ______
Safety
You should always power off and ______ the computer after working on it.
unplug
It is important to hold the components on their ______ to avoid damage.
edges
Always wear Personal Protective ______ in accordance with OHS procedures.
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The main components of the computer are housed in the computer ______.
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The monitor works with a video ______ located inside the computer case.
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During workplace accidents, ______ measures are recognized.
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There are three types of monitor: LCD, LED, and ______.
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Without the ______ the computer is useless
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Most current Microsoft Windows is Windows ______
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Linux is an '______' OS, which means it can be modified and distributed by anyone
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The ______ supply is essential for powering the computer
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The computer power supply converts ______ current into a specified DC current
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Modern PCs use switch mode ______ supply unit or SMPSU
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Microsoft Windows is an example of ______-source software
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The latest version of Mac OS X is ______
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The ______ provides communication between the computer and networks.
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The ______ connects the CPU, PCI slot, and RAM together.
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The ______ is where you place the processor.
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The ______ allows CPU to connect with the PCI's, SATA, USB, Ethernet, and on-board audio.
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The ______ connects to older HDD and Optical drives for data transfer.
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The ______ helps the ATX power connector in supplying power to the CPU.
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The ______ connects devices outside the system unit without needing expansion cards.
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A ______ joins a cable to a port.
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The ______ serves as the cooling system of the system unit.
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The ______ connects RAM to the motherboard.
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The ______ sends data one bit at a time and is used for devices like mice.
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A ______ sends multiple bits at once and is used for high-speed printers.
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The ______ is a special software that interfaces the major hardware components of your computer with the OS.
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A ______ is an electronic measuring device that combines several measurement functions in one unit.
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A ______ is used for driving screws and often rotating other machine elements.
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The ______ is a tool for removing molten solder.
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The main drive on the cable is known as the ______.
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The second drive on the same cable is referred to as the ______.
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A special cable that sets drives as master or slave based on their position is called ______.
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Buses are electrical channels that allow different parts of a computer to ______.
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The bus that transfers actual data is known as the ______.
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The bus that connects the CPU to main memory on the motherboard is called the ______.
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The ______ bus is faster than ISA and is used for video cards and sound cards.
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A PC Card slides into a slot on the computer to add extra ______ or connect to peripherals.
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Study Notes
Occupational Health and Safety (OHS) Procedures
- OHS legislation aims to protect health, safety, and welfare in workplaces.
- Avoid working alone; having someone nearby ensures assistance during emergencies.
- Always power off and unplug computers after maintenance to prevent electrical hazards.
- Keep liquids away from the workspace to avoid electrocution or equipment damage.
- Handle tools carefully to prevent short circuits.
- Discharge static electricity by grounding yourself before touching computer components.
- Avoid using excessive force when assembling or disassembling components.
- Maintain cleanliness in the work area to prevent accidents and promote hygiene.
- Hold components by their edges and refrain from touching IC parts to prevent damage.
- Wear Personal Protective Equipment (PPE) according to OHS guidelines.
- Ensure proper alignment of pins when connecting cables to prevent damage.
- Recognize contingency measures for managing workplace accidents and emergencies.
- Use brushes and compressed air for cleaning computer components to avoid damage.
Basic Parts of a Desktop Computer
- Key parts include the computer case, monitor, keyboard, mouse, and power cord, each fulfilling critical roles in operation.
Operating Systems (OS) Overview
- Microsoft Windows, developed in the mid-1980s, is the most common OS, with versions like Windows 8, Windows 7, and Windows Vista.
- Apple Mac OS X is designed for Macintosh computers, with recent versions including Mavericks and Mountain Lion.
- Linux is an open-source OS that can be modified and distributed freely, with popular versions like Ubuntu and Fedora.
Power Supply Unit (PSU)
- PSU converts AC (alternating current) into DC (direct current) power needed by the computer.
- Modern PCs typically use Switch Mode Power Supply Units (SMPSU) for efficient voltage conversion using electronic switching.
Communication Devices
- Essential for connecting computers to networks for data exchange.
- Devices transmit data over various media including cables and satellites.
Components of a Motherboard
- Back panel connectors interface with external devices like displays and USB ports.
- Includes various slots for expansion cards (PCI, PCIe for graphics), CPU socket, ATX power connector for power supply, and front panel connectors for switches and audio.
- The motherboard supports various data connections, such as IDE and SATA connectors and includes the Northbridge and Southbridge for component communication.
Master/Slave Jumper Setting
- Drives are configured as master or slave based on their cable position, using settings like cable select for automatic configuration.
Buses and Their Functions
- Buses facilitate communication between computer parts, including data and address buses.
- Bus width and clock speed affect data transmission speed and overall system performance.
- Types include System Bus (connects CPU to memory) and Expansion Bus (connects CPU to peripherals).
Ports and Connectors
- Ports enable peripheral device connections, while connectors join cables to ports.
- Common port types include serial (for mice/keyboards) and USB (for various peripherals).
BIOS (Basic Input/Output System)
- BIOS software connects hardware components to the OS; stored in flash memory on the motherboard.
- CMOS is used to save configuration updates made through the BIOS.
Tools and Equipment for Computer Servicing
- Protective eyewear safeguards against particles and chemicals.
- Multimeter measures electrical parameters, aiding diagnostics.
- Pliers, screwdrivers, and soldering tools are used for assembly and repair.
- Flashlights provide illumination during repair processes.
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Description
This quiz covers essential Occupational Health and Safety (OHS) procedures for computer hardware servicing. It emphasizes the importance of safety precautions such as working in pairs, proper shutdown procedures, and maintaining a safe workspace. Test your knowledge on how to create a safer working environment in tech-related tasks.
