Intranet in Education: Applications, Word Processors, Multimedia, and TV
What is an Intranet?
Intranets are private networks based on Internet technology. Many schools develop this type of network.
Six Major Educational Applications of the Internet
Interpersonal Communication
The Internet facilitates communication by bridging the gap between students, between students and groups, and between learner and teacher. It raises motivation in learning and is a project of rapprochement between different cultures.
Gathering Information
It means looking for information in a directory,
Understanding Needs Assessment in Curriculum Development
The assessment of needs is a critical and complex issue, which comprises the most significant component of the curriculum development process. Teachers should play a pivotal role in this process if effective learning is ever going to take place.
These assessments of needs should be done with reference to the four P’s: Problem, People, Place, and Performance.
Roger Kaufman is known as the “Father of Needs Assessment”.
Five Basic Assumptions of This Model
- Curriculum and instruction (instructional design)
Understanding Communication: Elements, Codes, and Functions
Elements of Communication
- Referent: The factual or conceptual material on which the message is based.
- Issuer: The initial element of the process that produces a message. It is identified with the speaker or writer in verbal communication.
- Receiver: The final element of the process that interprets the message. This is the listener or reader in verbal communication.
- Channel: The physical medium of transmission, which determines the nature of the signals that are transmitted. Types include oral, visual,
Understanding RAM, Hard Disks, and I/O Modules
RAM Technology: DRAM vs. SRAM
RAM technology is divided into two primary types:
- Dynamic RAM (DRAM)
- Static RAM (SRAM)
DRAM
- Made with cells that store data as a charge on capacitors.
- The presence or absence of charge in a capacitor is interpreted as a binary 1 or 0.
- Requires periodic charge refreshing to maintain data storage.
- The term *dynamic* refers to the tendency of the stored charge to leak away, even with power continuously applied.
DRAM vs. SRAM: Key Differences
- Both are volatile, meaning power must
Electrical Components and Motors: Types, Functions, and Safety
Electrical Components: Types and Functions
Triggers
- Magnetic Trigger: Acts opposite to short-circuit currents with very fast cutting.
- Thermal Trigger: Acts in case of overload, cutting slowly.
Terminals
Buttonhole, fork, pin, sheet, and splice sleeves.
Types of Busbars
Vertical side, deep vertical, horizontal and vertical, horizontal.
Protection Ratings
- IP: Protection against solid objects or liquids.
- IK: Protection against mechanical shock.
Types of Files
Flat, half-round, triangular, square, round.
Voltage
Read More802.11 WLAN Topologies, Antennas, and Protocols
WLAN Topologies
802.11 LAN Topologies:
- Ad hoc: Direct device-to-device communication.
- Infrastructure: Uses an Access Point (AP).
Key Terms:
- BSS: Basic Service Set.
- IBSS: Independent Basic Service Set (no AP).
Network Setup:
- Devices communicate without an AP by defining a group name.
- In infrastructure mode, an AP acts as a bridge connecting wireless clients to a wired network.
- Wireless clients are also known as stations.
- An AP is an infrastructure device.
- The coverage area of a single AP is called a BSA.
- Multiple