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10.1 IPEKA Puri Informatics <Septiara>, Types of Networks, Positive,…
10.1 IPEKA Puri Informatics <Septiara>
Computer Systems
Hardware
Input Devices
keyboard, mouse, scanner
Output Devices
monitor, printer, speakers
Storage
Primary / Internal Storage
RAM (Random Access Memory)
ROM (Read-Only Memory)
Secondary / Mass Storage
HDD (Hard Disk Drive)
SSD (Solid State Drive)
External drives, flash drives, optical discs
Processing Components
CPU (Central Processing Unit)
GPU (Graphics Processing Unit)
Chipset
Motherboard
The main circuit board that connects all components: CPU socket, RAM slots, PCIe slots (for GPU), SATA/ M.2 connectors (for storage), power connectors, USB headers, BIOS/UEFI chip
Memory
memory types differ by speed and purpose
Brainware
the programs and instructions that tell the hardware what to do
Users
students, teachers, parents use apps like Google Classroom or Zoom
IT people
the school technician or a friend who fixes computers
Programmers
people who make apps like games or websites
Software
System Software
Device Drivers
small helpers so the computer can use devices (printer or webcam)
Utilities
antivirus, backup tools
Operating System (OS)
Windows (PC), macOS (Mac), Android (phones), iOS (iPhones)
Application Software
WhatsApp, Telegram for messaging friends.
Google Drive for saving files online.
opening YouTube in Chrome to watch videos.
COMPUTER SYSTEM
Internet
a global network of networks that connects millions of private, public, academic, business, and government networks.
Internet Services
Web
site page based information
Email
electronic mail
Cloud storage
online storage
Social media
interaction between users
Network Types
CABLE
Wired Connection (LAN, Backbone, RJ45, Switch)
WIRE LESS
Wireless Connection (WiFi, Bluetooth, Satellite, Cellphone, IR)
Benefits
Access to information and learning (tutorials, articles)
Communication (email, chat, video calls)
Entertainment (videos, music, games)
Business and services (online shopping, banking)
Collaboration (cloud docs, remote teams)
Comment: internet makes lots of things faster and global
Impact of the Internet
Negative
A group of computers connected to each other to exchange data and information so they can share data, like files, internet, or printers
Types of Networks
LAN (Local Area Network)
WAN (Wide Area Network)
PAN (Personal Area Network)
MAN (Metropolitan Area Network)
CAN (Campus Area Network)
SAN (Storage Area Network)
Positive
Education: easy access to learning resources
Economy: new jobs, online businesses
Social: stay connected with friends and family
Addiction and reduced face-to-face social skills
Misinformation and fake news
Cybercrime (scams, hacking)
Privacy risks and data leaks
Benefits
Time and cost efficiency
Faster communication
Sharing hardware (printers, scanners)
Sharing data and information