Chapter 1: Preparation of Computer Specifications from the Grade 09 Information and Communication Technology textbook (English Medium)

itclass Faaz
Aug 4
6 min read

📘 Chapter 1: Preparation of Computer Specifications

🔹 1.1 Identifying the User

Definition of a user
Different types of ICT users and their roles (Programmer, Network Administrator, System Analyst, etc.)
System users vs. End users

🔹 1.2 Selection of a Computer to Suit User Requirements

User requirement examples: internet access, document preparation, gaming, graphic design
Types of computers available:
- Non-portable computers: Server, Workstation, Desktop, All-in-One
- Portable computers: Laptop, Notebook, Tablet, Smartphone
Market vs. assembled computers

🔹 1.3 Computer Peripheral Devices

Definition and categories: Input, Output, and Storage devices
Examples:
- Input: Keyboard, Mouse, Microphone, Touch screen
- Output: Monitor, Printer, Speakers
- Storage: Hard Disk, Optical Disk, Flash Drive, Magnetic Tape Drive
Touch screens as both input and output devices

🔹 1.4 Computer Specifications

Importance of specifications
Analogy using exercise book specs
Computer specification changes based on user needs

🔹 1.5 Specifications of Computers and Peripheral Devices

▪ 1.5.1 Processor

CPU as the "brain" of the computer
Speed measured in MHz or GHz
Types of processors (Single Core, Dual Core, Quad Core)
Examples: Pentium I–IV, Core i3, i5, i7, i9

▪ 1.5.2 Hard Disk

Main storage device
Higher capacity = more data storage (e.g., 1TB, 4TB)

▪ 1.5.3 Monitor Display

Measured by diagonal length (in inches)
Types: CRT, LCD, LED
LED/LCD are energy efficient and compact

▪ 1.5.4 Main Memory (RAM)

Temporarily stores data during processing
Measured in MB/GB (1024 MB = 1 GB)

▪ 1.5.5 Video Graphic Adapter (VGA)

Outputs display signal to the monitor
Types: Onboard and Separate VGA cards
Modern options: DVI and HDMI

▪ 1.5.6 Sound Card

Built-in or external
Ports:
- Light green – audio out
- Light pink – mic in
- Light blue – line in

▪ 1.5.7 Pre-installed Software

Operating systems: Free (Linux, Ubuntu) vs. Licensed (Windows)
Importance of checking OS and application software

🔹 1.6 Non-Technical Features to Consider in Purchasing a Computer

▪ 1.6.1 Warranty

Types of warranties:
- Manufacturer warranty
- Extended warranty
- On-site warranty

▪ 1.6.2 Price

Affects by processor, RAM, monitor size, hard disk
Compare prices before purchasing

▪ 1.6.3 After-Sales Services

Technical advice, support, and contact channels

▪ 1.6.4 Ports and Network Connections

USB ports (for printers, cameras, drives, etc.)
RJ45 network ports for wired LAN
Wireless features: Bluetooth and Wi-Fi

🔹 Summary Points

Identify user requirements
Choose between assembled and pre-built systems
Consider peripheral devices and technical specifications:
- Processor type and speed
- RAM and Hard disk capacity
- Monitor type and size
- VGA and sound cards
Consider non-technical aspects:
- Warranty, software, services, connectivity

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Here are comprehensive questions and answers based on Chapter 1: Preparation of Computer Specifications from the Grade 9 ICT textbook. These cover every subtopic and detail, ideal for exams, quizzes, and revision.

📘 Chapter 1: Preparation of Computer Specifications – Q&A

🔹 1.1 Identifying the User

Q1. Who is a user in ICT?👉 A person who uses a computer to perform tasks is called a user.

Q2. What are two types of users?👉 System users and End users.

Q3. Give examples of ICT users and their roles.

Programmer: Develops software
System Analyst: Designs systems
Network Administrator: Manages networks
Data Entry Operator: Enters data
Graphic Designer: Creates visual content

Q4. Who is a system user?👉 A person who develops, manages, or configures computer systems.

Q5. Who is an end user?👉 A person who uses a computer system to complete a task.

🔹 1.2 Selection of a Computer to Suit User Requirements

Q1. What factors influence computer selection?👉 User needs like browsing, word processing, gaming, video editing.

Q2. Name types of computers available in the market.

Non-portable: Server, Workstation, Desktop, All-in-One
Portable: Laptop, Notebook, Tablet, Smartphone

Q3. What is the difference between market computers and assembled computers?👉 Market computers are branded and ready-made; assembled computers are built by combining selected parts.

🔹 1.3 Computer Peripheral Devices

Q1. What are peripheral devices?👉 Devices connected to a computer for input, output, or storage.

Q2. Name three types of peripheral devices.👉 Input, Output, Storage

Q3. Give two examples of input devices.👉 Keyboard, Mouse

Q4. Give two examples of output devices.👉 Monitor, Printer

Q5. Give two examples of storage devices.👉 Hard Disk, Flash Drive

Q6. What is a touch screen?👉 A device that functions as both input and output.

🔹 1.4 Computer Specifications

Q1. Why are specifications important when buying a computer?👉 They determine whether the computer meets the user’s needs.

Q2. What real-life analogy is used for specifications?👉 Exercise book features like ruled/unruled, number of pages, size.

🔹 1.5 Specifications of Computers and Peripheral Devices

▪ 1.5.1 Processor

Q1. What is the processor?👉 The processor (CPU) is the brain of the computer.

Q2. How is processor speed measured?👉 In MHz or GHz.

Q3. Give examples of processor types.👉 Pentium I–IV, Core i3, i5, i7, i9

Q4. What is the difference between single-core and multi-core processors?👉 Multi-core processors can perform multiple tasks simultaneously.

▪ 1.5.2 Hard Disk

Q1. What is the purpose of the hard disk?👉 It is the main data storage device.

Q2. Give two examples of hard disk capacities.👉 1TB, 4TB

▪ 1.5.3 Monitor Display

Q1. How is monitor size measured?👉 By the diagonal length in inches.

Q2. Types of monitor displays?👉 CRT, LCD, LED

Q3. Which types are more energy efficient and compact?👉 LED and LCD

▪ 1.5.4 Main Memory (RAM)

Q1. What is RAM used for?👉 Temporary data storage during processing.

Q2. How is RAM measured?👉 In MB or GB (1024MB = 1GB)

▪ 1.5.5 Video Graphic Adapter (VGA)

Q1. What is a VGA?👉 A device that outputs video signals to the monitor.

Q2. Types of VGA cards?👉 Onboard and Separate

Q3. Modern display connections include?👉 DVI and HDMI

▪ 1.5.6 Sound Card

Q1. What does a sound card do?👉 It processes sound input and output.

Q2. What are common audio port colours and uses?

Green: Audio out
Pink: Mic in
Blue: Line in

▪ 1.5.7 Pre-installed Software

Q1. What are two types of operating systems?👉 Free (e.g., Linux), Licensed (e.g., Windows)

Q2. Why should you check for pre-installed software?👉 To ensure the system includes essential OS and applications.

🔹 1.6 Non-Technical Features to Consider

▪ 1.6.1 Warranty

Q1. What is a warranty?👉 A guarantee for free service or replacement within a time period.

Q2. Types of warranties?

Manufacturer warranty
Extended warranty
On-site warranty

▪ 1.6.2 Price

Q1. What affects a computer's price?👉 Processor, RAM, monitor size, storage, brand

Q2. Why should you compare prices before buying?👉 To get the best value for money.

▪ 1.6.3 After-Sales Services

Q1. What is after-sales service?👉 Support provided after buying, like repairs or advice.

Q2. Why is it important?👉 Ensures you get help when something goes wrong.

▪ 1.6.4 Ports and Network Connections

Q1. What are USB ports used for?👉 Connecting devices like printers, flash drives.

Q2. What is the purpose of an RJ45 port?👉 Wired internet or LAN connection.

Q3. What are common wireless features in computers?👉 Bluetooth and Wi-Fi

📝 Summary Practice Essay Question

Q: Write an essay on how to prepare computer specifications before buying a computer.

Sample Answer:To prepare computer specifications, you must first identify the user and their needs such as typing, gaming, or graphic design. Then select a suitable computer type – desktop, laptop, or tablet. Consider input and output devices like keyboard, mouse, monitor, and printer. Check technical specs like processor type, RAM, hard disk size, monitor type, VGA, sound card, and software. Also, consider non-technical features such as warranty, price, after-sales service, and connectivity ports. Making a checklist helps in comparing products before purchasing the most suitable computer.

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