IT403 Unit 1.1: Introduction to Computer System

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Questions and Answers

Which of the following best describes data?

Programs that operate the computer.

Raw, unorganized facts. (correct)

Processed facts that are meaningful.

Physical components of a computer.

What is the main function of input devices?

To present results to the user.

To perform calculations.

To store data electronically.

To input data into the computer. (correct)

Which component is considered internal hardware?

Graphics cards. (correct)

USB flash drives.

Printers.

Modems.

What type of software is essential for a computer to start operating?

System software. Signup and view all the answers

What is the role of processing devices within a computer?

To perform calculations and control operations. Signup and view all the answers

What term describes the integration of computers into everyday life?

Pervasive computing Signup and view all the answers

Which of the following best describes 'basic computer literacy'?

Understanding computers and their uses Signup and view all the answers

In the early 1980s, which type of computers became widely available to the public?

Microcomputers Signup and view all the answers

What function does 'output' serve in basic computer operations?

Presenting the results of processed data Signup and view all the answers

What is the primary role of computers in the field of education today?

Facilitating distance learning and access to information Signup and view all the answers

Which of the following is NOT considered a basic operation of computers?

Optimization Signup and view all the answers

How have computers impacted job functions in the modern workplace?

They are utilized by employees across various sectors for productivity. Signup and view all the answers

What has contributed to the concept of a 'smart home'?

Convergence of computing technology into everyday appliances Signup and view all the answers

Which of the following is a feature of 'm-commerce'?

Mobile transactions facilitated through devices Signup and view all the answers

What is typically the main focus of 'computers on the go'?

Consumer kiosks and retail transactions Signup and view all the answers

What is the primary function of network servers?

To manage resources on a network Signup and view all the answers

Which of the following accurately describes an IP address?

A numeric address that identifies computers uniquely Signup and view all the answers

What does a URL typically consist of?

Protocol, server identification, folder names, and page filename Signup and view all the answers

Which statement is true regarding the World Wide Web?

It consists of a vast collection of Web pages accessible via browsers. Signup and view all the answers

What is required to access the Internet from a network?

A modem or network adapter Signup and view all the answers

What does the @ symbol in an email address signify?

It separates the username from the domain name. Signup and view all the answers

What is a common feature of a web browser?

To display Web pages and facilitate navigation Signup and view all the answers

Which of the following best describes a domain name?

A text-based address that corresponds to an IP address Signup and view all the answers

What is one main characteristic of direct Internet connections?

They involve a continuous, always-on connection. Signup and view all the answers

Which protocol is typically used to display web pages?

Hypertext Transfer Protocol (http://) Signup and view all the answers

What is the primary function of an embedded computer?

To be integrated into products for specific functions. Signup and view all the answers

Which of the following best describes a mainframe computer?

A powerful computer used to manage large amounts of centralized data. Signup and view all the answers

What distinguishes thin clients from personal computers?

Thin clients are designed to access a network for processing and data storage. Signup and view all the answers

Which type of computer is typically the fastest and most powerful?

Supercomputers Signup and view all the answers

What is a characteristic of mobile devices?

Small devices with built-in computing or Internet capability. Signup and view all the answers

Which of the following is a type of personal computer?

Notebook computer Signup and view all the answers

What is the primary purpose of a midrange server?

To host programs and data for small networks. Signup and view all the answers

What defines an internet appliance?

A specialized network computer for Internet access and e-mail. Signup and view all the answers

Which of the following statements is true about personal computers?

They are generally used by one person at a time. Signup and view all the answers

What is a common usage of supercomputers?

Perform complex scientific research. Signup and view all the answers

Study Notes

Intended Learning Outcomes

Analyze the integration of computers in business and personal lives.
Distinguish primary computer operations and their classifications.
Compare societal impacts of computers, exploring benefits and risks.
Adapt proper handling of materials, tools, and equipment.

Overview of Computer Systems

Covers the function, terminology, and history of computers.
Discusses basic types of computers and networks, including the Internet.
Examines societal impacts and practical applications of computer technologies.

Pervasive Computing

Ubiquitous computing highlights computers as essential in daily life.
Basic computer literacy is critical for navigating modern environments.

Historical Context of Computers

Pre-1980: Computers were large, expensive, limited access, used for high-volume tasks.
Early 1980s: Introduction of inexpensive microcomputers spurred massive growth in usage.
Today: Over 80% of US households own a computer, with multifunctional electronic devices.

Computer Use at Home

Common tasks: Information retrieval, email, online shopping, entertainment, digital organization, and telecommuting.
Convergence: Computers central to home entertainment and operations.
Smart technologies: Integration into everyday appliances and control of household tasks via a central system.

Computers in Education

Access to computers in classrooms and labs is standard for students.
Colleges require computers; wireless hot spots facilitate connectivity.
Distance learning enables remote participation and access to resources.

Computers in the Workplace

Essential tool for decision-making and communication across professions.
Security measures and ongoing skills refreshment are necessary.

Computers on the Go

Computers embedded in kiosks, ATMs, POS systems, and mobile devices enhance daily activities.
Mobile commerce systems and GPS technology support flexible access to information.

Basic Computer Operations

Input: Data entry into the computer.
Processing: Manipulating data to produce results.
Output: Displaying results to users.
Storage: Saving data and programs for future reference.
Communications: Exchanging data electronically.

Data vs. Information

Data: Raw, unorganized facts presented in various forms (text, graphics).
Information: Processed data transformed into meaningful content.

Computer Hardware

Hardware: Physical components of a computer.
Internal hardware: Located within the main unit (e.g., CPU, memory).
External hardware: Connects through wired or wireless means (e.g., peripherals).

Categories of Computers

Embedded computers: Integrated into products for specific functions.
Mobile devices: Small devices featuring computing capabilities (e.g., smartphones).
Personal computers: Designed for one user at a time, including desktops and laptops.
Midrange servers: Host programs/data for networks of small organizations.
Mainframe computers: Manage extensive data for large entities (e.g., banks).
Supercomputers: Highly powerful, used for complex tasks and calculations.

Networking and the Internet

Computer networks: Enable resource sharing and communication among connected devices.
Network types: Vary from home and business networks to public and corporate networks.

Internet and World Wide Web

Internet: Largest global network, connects users through ISPs.
World Wide Web: Collection of web pages accessed via browsers, containing a wide array of information.

Accessing Networks

Requires a modem or network adapter for connections.
Internet addresses: Identified by IP addresses and domain names.
URLs: Specify web pages and include protocols for accessing them.

Email Communication

E-mail: Electronic messages exchanged across networks, containing text and attachments.
Structured by a username, an "@" symbol, and a domain name.

Web Browsing

Web browsers display web pages and allow navigation via URLs and hyperlinks.
Home pages: The default page accessed upon opening a browser.

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Description

This quiz assesses your understanding of the basic concepts introduced in Unit 1.1 of IT403. You'll analyze how computers integrate into everyday life, distinguish their primary operations, and categorize different types of computers based on features and specifications. Additionally, considerations of the societal impact of computers, including benefits and risks, will be explored.