IT Application Tools - Lesson 1

IT Application Tools - Lesson 1

• A computer is an electronic device that performs tasks based on instructions from the user.
• Computers use the Latin term "computare," meaning to calculate, or programmable machines.
• Computers require a program to function.
• Computers represent decimal numbers using binary digits (0s and 1s).
• "Computer" usually refers to the Central Processing Unit (CPU) and internal memory.

Use of Computers in Education

• Obtaining and understanding information is a challenge for students.
• Students dedicate 5-6 hours per week, on average, to internet use.
• Research suggests computers enhance learning performance.
• Students using the internet reported improved academic research and writing skills.
• Online courses are a significant advancement in education.

Use of Computers in Health and Medicine

• Computer technology is transforming medical practices.
• Medical information can now be digitized.
• Software can assess disease risks.
• Computer-assisted screening is used for troubled teenagers needing psychotherapy.
• Impairment doesn't prevent communication through computer-brain interface technology.

Use of Computers in Science

• Scientists use computers for collaboration.
• Researchers worldwide can work together through internet-based collaborative platforms.
• Space physics is one example, where researchers measure the earth's ionosphere across the globe.

Use of Computers in Business

• Businesses use computers to increase productivity and competitiveness.
• Sales, marketing, banking, and stock trading are business sectors undergoing extensive computerization and modernization.
• Technology proficiency is required for businesses staff in these sectors.
• Businesses utilize internet-based tools for enhanced business operations.

Use of Computers in Recreation and Entertainment

• Computerization has affected entertainment activities.
• Special effects and imaginary characters are now possible in movies.
• Sports statistics, ticket sales, and training programs can be handled by computers.
• Restaurants use computers for food order processing, cost calculation, and receipt generation.

Advantages of Computers - Multitasking

• Computers can perform multiple tasks simultaneously.
• Computers can execute many operations at once, and handle complex numerical calculations efficiently.
• Computers can process and execute approximately 1 trillion instructions per second.

Advantages of Computers - Speed

• Computers are extremely fast compared to human calculation, and process massive amounts of data and execute complex operations.
• Calculating tasks, solving problems, performing many activities, and operations can be executed with incredible speed by computers when compared to manual processes.

Disadvantages of Computers - Cost/Storage

• Computers offer cost-effective data storage solutions.
• Centralized databases provide cost-effective data storage and access.

Disadvantages of Computers - Accuracy

• Computers can perform calculations with accuracy.

Disadvantages of Computers - Data Security

• Data security is essential.
• Computers must be protected against malicious threats and illicit access.
• Unauthorized use of computer resources, or cyberattacks must be prevented.

Disadvantages of Computers - Virus and Hacking Attacks

• Viruses and hacking represent risks.
• Unauthorized access and use are malicious activities.

Disadvantages of Computers - Online Cyber Crimes

• Online cybercrimes are an emerging issue.
• Cyberstalking, identity theft, and unauthorized account access are online cybercrimes.

Disadvantages of Computers - Reduction in Employment

• Computerization presents a critical issue related to job losses.
• Businesses use computerization, which in turn may lead to job losses in certain roles.

Types of Computers - Supercomputers

• Supercomputers are the fastest computers worldwide.
• They power space crafts, satellites, and research.
• Used for demanding scientific calculations.

Types of Computers - Mainframe Computers

• Large, scalable computers for high-volume data processing.
• Used in large organizations for simultaneous user access

Types of Computers - Server Computers

• Servers manage networks and execute tasks.
• They execute operations faster than individual workstations or client computers.

Types of Computers - Personal Computers

• Personal computers are individual-use devices.

Types of Computers (Personal) - Desktop PCs

• A desktop PC has a monitor, keyboard mouse etc.

Types of Computers (Personal) - Laptops

• Portable computers with integrated components

Types of Computers (Personal) - Tablets

• Touchscreen-based computers.

Types of Computers (Personal) - Portable PCs

• Portable devices that are designed for various specific uses.

Types of Computers (Personal) - Handheld Gaming Consoles

• Mobile gaming consoles include a small monitor and control equipment.

Types of Computers (Personal) - Gaming Consoles

• Gaming consoles are designed for gaming activities and experiences.

Types of Computers (Personal) - Embedded PCs

• Embedded PCs are integrated components in various systems.
• These system components perform specific functions and execute related tasks.

Embedded Computing Systems

• Calculators, digital cameras, automotive systems, vending machines, elevators, printers, and GPS are examples of systems using embedded computing systems.

Binary Numbers

• Binary numbers (0s and 1s) are the basis of computer functions.

This quiz covers the fundamentals of IT application tools, focusing on computer functionalities and their impact on education and healthcare. Explore how computers enhance learning performance and revolutionize medical practices through digital information. Gain insights into the role of computers in modern society.