Podcast
Questions and Answers
OHS stands for Occupational Health and ______
OHS stands for Occupational Health and ______
Safety
You should always power off and ______ the computer after working on it.
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.
It is important to hold the components on their ______ to avoid damage.
edges
Always wear Personal Protective ______ in accordance with OHS procedures.
Always wear Personal Protective ______ in accordance with OHS procedures.
The main components of the computer are housed in the computer ______.
The main components of the computer are housed in the computer ______.
The monitor works with a video ______ located inside the computer case.
The monitor works with a video ______ located inside the computer case.
During workplace accidents, ______ measures are recognized.
During workplace accidents, ______ measures are recognized.
There are three types of monitor: LCD, LED, and ______.
There are three types of monitor: LCD, LED, and ______.
Without the ______ the computer is useless
Without the ______ the computer is useless
Most current Microsoft Windows is Windows ______
Most current Microsoft Windows is Windows ______
Linux is an '______' OS, which means it can be modified and distributed by anyone
Linux is an '______' OS, which means it can be modified and distributed by anyone
The ______ supply is essential for powering the computer
The ______ supply is essential for powering the computer
The computer power supply converts ______ current into a specified DC current
The computer power supply converts ______ current into a specified DC current
Modern PCs use switch mode ______ supply unit or SMPSU
Modern PCs use switch mode ______ supply unit or SMPSU
Microsoft Windows is an example of ______-source software
Microsoft Windows is an example of ______-source software
The latest version of Mac OS X is ______
The latest version of Mac OS X is ______
The ______ provides communication between the computer and networks.
The ______ provides communication between the computer and networks.
The ______ connects the CPU, PCI slot, and RAM together.
The ______ connects the CPU, PCI slot, and RAM together.
The ______ is where you place the processor.
The ______ is where you place the processor.
The ______ allows CPU to connect with the PCI's, SATA, USB, Ethernet, and on-board audio.
The ______ allows CPU to connect with the PCI's, SATA, USB, Ethernet, and on-board audio.
The ______ connects to older HDD and Optical drives for data transfer.
The ______ connects to older HDD and Optical drives for data transfer.
The ______ helps the ATX power connector in supplying power to the CPU.
The ______ helps the ATX power connector in supplying power to the CPU.
The ______ connects devices outside the system unit without needing expansion cards.
The ______ connects devices outside the system unit without needing expansion cards.
A ______ joins a cable to a port.
A ______ joins a cable to a port.
The ______ serves as the cooling system of the system unit.
The ______ serves as the cooling system of the system unit.
The ______ connects RAM to the motherboard.
The ______ connects RAM to the motherboard.
The ______ sends data one bit at a time and is used for devices like mice.
The ______ sends data one bit at a time and is used for devices like mice.
A ______ sends multiple bits at once and is used for high-speed printers.
A ______ sends multiple bits at once and is used for high-speed printers.
The ______ is a special software that interfaces the major hardware components of your computer with the OS.
The ______ is a special software that interfaces the major hardware components of your computer with the OS.
A ______ is an electronic measuring device that combines several measurement functions in one unit.
A ______ is an electronic measuring device that combines several measurement functions in one unit.
A ______ is used for driving screws and often rotating other machine elements.
A ______ is used for driving screws and often rotating other machine elements.
The ______ is a tool for removing molten solder.
The ______ is a tool for removing molten solder.
The main drive on the cable is known as the ______.
The main drive on the cable is known as the ______.
The second drive on the same cable is referred to as the ______.
The second drive on the same cable is referred to as the ______.
A special cable that sets drives as master or slave based on their position is called ______.
A special cable that sets drives as master or slave based on their position is called ______.
Buses are electrical channels that allow different parts of a computer to ______.
Buses are electrical channels that allow different parts of a computer to ______.
The bus that transfers actual data is known as the ______.
The bus that transfers actual data is known as the ______.
The bus that connects the CPU to main memory on the motherboard is called the ______.
The bus that connects the CPU to main memory on the motherboard is called the ______.
The ______ bus is faster than ISA and is used for video cards and sound cards.
The ______ bus is faster than ISA and is used for video cards and sound cards.
A PC Card slides into a slot on the computer to add extra ______ or connect to peripherals.
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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