Notes, summaries, assignments, exams, and exercises for Technology for Baccalaureate

E-Commerce 2014, 10e (Laudon/Traver)

Chapter 1   The Revolution Continues

1) Retail e-commerce is expected to continue growing at double-digit growth rates in 2013-2014.

Answer  TRUE

2) Over 50% of the world's population is now online.

Answer  FALSE

 3) E-business involves commercial transactions involving an exchange of value across organizational boundaries.

Answer  FALSE

 4) Ubiquity decreases cognitive energy outlays.

Answer  TRUE

  5) The fact that e-commerce is conducted on the basis of universal standards decreases market entry costs for merchants.

Answer  TRUE

6) Price transparency refers to the ability of merchants to segment the market into groups willing to pay different prices.

Answer  FALSE

7) Cost transparency refers to the ability...

Server Architecture and NTFS

• End-user access: Server resources.
• File System: NTFS.
• Environment: Workstation (small local) vs. Server (large layouts).

Virtualization and Hyper-V

• Hyper-V Layers: Hardware (bottom), Hyper-V (middle), VMs (top).
• Key Benefits: Scalability, fast recovery, high availability.
• Integration: Services, domain, data exchange, dynamic RAM.
• Memory Management: Efficient physical memory usage; shared memory.
• RAM Settings: Minimum RAM, Maximum RAM, and Memory Buffer.
• Virtual Disks: VHD (2040 GB), VHDX (64 TB), Shared VHDX (for clusters).
• VM Files: VM file stores settings; VHDX stores virtual drive data.
• Operations: Restored VMs must be started; reverted checkpoints can be off.

Active Directory and Domain Services

• Core Functions: Central administration,

PC Technician Q&A: Tools, Safety, and Maintenance

1. Windows XP Disk Initialization Tool

Which tool in Windows XP gives a technician access to initialize disks and create partitions?

Disk Management

2. ESD Prevention Precautions

A technician wants to limit the chances of Electrostatic Discharge (ESD) affecting the workspace. Which three precautions should be taken? (Choose three.)

• Ensure antistatic mats are on the workbench and floor.
• Wear an antistatic wrist strap.
• Keep all components in antistatic bags.

3. Internal System Safety

Which precaution should be taken when working inside computer systems?

Avoid using magnetized tools.

4. Component Cleaning Solution

Which cleaning solution is recommended to clean the contacts of computer components?

Isopropyl...

Internet Connection Types

• Phone line
• Cable
• ADSL
• Satellite
• Mobile telephony

Wi-Fi

A Wi-Fi is a type of Internet connection that allows multiple computers to connect to the Internet without wires.

Killer Apps

In computer jargon, killer apps (killer applications) are software that exploit a technology, developing its potential and increasing the sales of hardware that supports it. Examples include PC, Macintosh, and the Boy.

Google

Google is probably the best-known and largest search engine in the world. It also has many useful programs, web applications, and tools.

Wikipedia

Wikipedia is a multilingual, free-content encyclopedia written by thousands of volunteers worldwide and sponsored by a nonprofit foundation. It includes a topical encyclopedia, almanac,...

Material Science Fundamentals

Metals (M)

Chemical elements with low electronegativity, few valence electrons, and outer layers that are easily shared. They are typically malleable and ductile, and are good conductors of heat and electricity.

Alloys (A)

Mixtures of metals and non-metals (or other metals) designed to improve mechanical properties, although they often result in a lower melting point. They are good drivers of electricity.

• Malleable, ductile, and high resistance.
• MiAF: Iron alloys (e.g., steel) prices. Fe (Iron) is tough, malleable, ferromagnetic, and forms carbon steel.
• MiAnF: Copper alloys, resistant, used in drivers, cobalt alloys.
• Supral: Aluminum alloys, corrosion-resistant and resistant to light (Al-Ti-Be).

Polymers (MP)

Organic materials...

Types of Ferrous Metals

Ferrous metals are primarily industrial iron, steel, and cast iron.

Industrial Iron

Industrial iron has a low carbon content and inadequate mechanical characteristics, making it rarely used in industries.

Steel

Steels are ductile and malleable. Mechanical strength, hardness, and brittleness increase with carbon content, while weldability decreases with the percentage of carbon. Steel is also prone to rust. There are two main types of steels: carbon steels (those with low content of other elements) and alloy steels (containing other elements).

Various elements communicate a range of properties to steel. These include sulfur, cobalt, chromium, manganese, molybdenum, nickel, lead, silicon, vanadium, and tungsten.

Cast Iron

Casting...

Electrical Generator Voltage Classifications

Generators are categorized by their voltage output:

• High Voltage: 3kV, 6kV, 10kV, 15kV
• Standard Voltage: 50V–500V
• Special Voltage: 500V–1000V
• Very Low Voltage: <50V (via transformer)

Alternating Current and Engine Types

Generators are classified by phase (biphasic and triphasic) and require an alternator paired with an engine:

• Gasoline: Standard generators
• Diesel: GE (Generator Sets)
• Gas: Large-scale installations

Generator Components and Control Systems

A standard generator assembly includes:

• Safety: Earth connection and 30mA differential protection.
• Control Cabinet:
  • Top Box: Ammeter, voltmeter, frequency meter, differential, and emergency stop.
  • Lower Cabinet: Terminal board and fast connections (Schuko-

Operating Systems

Core Concepts: Budget, bundled software, command line, commercially owned, coordinate, developer, development, entire, freely available, Graphical User Interface (GUI), issue, modify, multi-task, open source, programming language code, proprietary, release, stable, storage.

Installing an Operating System

Key Terms: Allocate, BIOS (Basic Input/Output System), bit, component, crash, distro, environment, infrastructure, kernel, partition, patch, pre-installed, prerequisite, requirement, run, screen resolution, segment, step-by-step.

Advanced Operating System Concepts

Technical Terms: Batch processing, bootstrap loader, clustered systems, command interpreter, control program, distributed systems, error detection, file-system manipulation,...

Unit 3 Vocabulary

Availability and Urgency

Available (disponible): This was the only room available.

Urge (desig): I had a sudden urge to hit him.

Crime and Actions

Burglar (lladre): Burglars broke into the gallery.

Remove (treure, desplaçar): He removed his hand from her shoulder.

Deny (negar): He denies attempting to murder his wife.

Turn out (produir resultat inesperat): It looked as if we were going to fail, but it turned out well in the end.

Pressing (urgent): Your answer is pressing.

Expose (exposar): If you expose something, you show it.

Objects and Structures

Pole (pal): You can use a pole to hold a flag.

Close-up (primer pla): You can find a close-up on TV.

Fence (tanca): There is a fence around a farm.

Fleet (flota): A fleet can have ships.

Movement

Red-Eye Correction

1. Find an image on the Internet or use one of your own that features red-eye.
2. Open the image in Adobe Photoshop.
3. Select the Sponge Tool. Set the mode to Desaturate and the flow to 50%. Select the appropriate brush size.
4. Click on the area where you want to correct the red-eye.

Correction of White Teeth

1. Find an image on the Internet or use one of your own that requires teeth whitening.
2. Open the image in Adobe Photoshop.
3. After opening the file, select the Sponge Tool. Set the mode to Desaturate and the flow to 50%. Select the brush size that you need.
4. Click on the area of the teeth you wish to correct.

Correcting Red-Eye, White Teeth, and Tattoo Placement

Initial Corrections

1. In the same picture that you have corrected before, proceed with