Notes, summaries, assignments, exams, and problems for Technology

What is ESD?

ESD (Electrostatic Discharge) is the accumulation of electric charge on a surface. For a person to feel an ESD, it's necessary to accumulate 3000V of static electricity.

How to Prevent ESD

• Save all components in static-safe bags.
• Use grounded pads.
• Use grounded floor mats.
• Use an antistatic wrist strap when working with computers.

Types of Power Changes

• Total Blackout: Complete power outage.
• Partial Blackout: A reduction in voltage.
• Noise: Interference on the power line.
• Peak Voltage: A sudden, sharp increase in voltage.
• Overvoltage: A prolonged increase in voltage.

Material Safety Data Sheet (MSDS)

An MSDS is a document that provides information about material identification, hazardous components that can affect people's health, fire hazards,... Continue reading "ESD, Material Safety, Memory Types, and Workday Structure" »

Computer Case Types

Barebone: A small-sized case designed to occupy minimal space.

Minitor: A compact case.

Bench: Similar to the Minitor, but placed horizontally on the desktop. These were once common but are now largely obsolete, except in school computer labs. It's typically placed under the monitor.

Half Tower or Semitorre: A case that's larger than the previous types, allowing for more devices to be installed.

Tower: The largest type of case, offering ample space for numerous components. It's used when significant expansion is required.

Server: These cases often have a wider frame and prioritize functionality over aesthetics, as they are commonly found in data processing centers. Their design focuses on performance and ventilation.

Rack: A dedicated... Continue reading "Computer Case Types and Hard Drive Components Explained" »