Digital Literacy
Have the Right Digital Skills to achieve your goals
SEC 102
Lecture 2
Overview of Computing Systems and Platforms
-Computing Systems include hardware, software, and operating systems.
✔Hardware
-The major hardware components are Input devices, Output devices, Storage
disk, Processing Unit (CPU), Motherboard/Internal components, Power
supply, and Networking devices.
Overview of Computing Systems and Platforms
oInput Devices: Used to enter data into the computer.
✔Examples: Keyboard, Mouse, Scanner, Microphone, Webcam, Joystick.
Overview of Computing Systems and Platforms
o Output Devices: Used to display or send information from the computer
to the user.
✔Examples: Monitor, Printer, Speakers, Headphones, Projector.
Overview of Computing Systems and Platforms
oStorage Devices: Used to store data permanently or temporarily.
✔Primary Storage (Memory):
- RAM (Random Access Memory) – temporary, volatile.
- ROM (Read Only Memory) – permanent, non-volatile.
✔Secondary Storage:
- Hard Disk Drive (HDD), Solid State Drive (SSD), Optical Discs
(CD/DVD), USB Flash Drives.
Overview of Computing Systems and Platforms
oCentral Processing Unit (CPU): The brain of the computer.
✔Main components:
-ALU (Arithmetic Logic Unit): Performs calculations and logical operations.
-CU (Control Unit): Directs operations of the computer.
-Registers and Cache: Very fast storage inside the CPU for temporary data.
Overview of Computing Systems and Platforms
oMotherboard and Internal Components: The main circuit board that
connects all hardware.
✔Components include:
-CPU socket
-RAM slots
-Expansion slots (for GPU, sound card, network card, etc.)
-Chipset (manages communication between CPU, memory, and
peripherals)
-Power connectors
Overview of Computing Systems and Platforms
oNetworking and Connectivity Devices:
- Network Interface Card (NIC)
- Wi-Fi adapters
- Routers and modems (external but essential)
NIC Wi-Fi
Adapters
Router modem
Overview of Computing Systems and Platforms
-Computing Systems also include software (system, application,
programming), and operating systems.
-Examples: Windows, macOS, Linux, Android, iOS.
-Platforms support productivity and collaboration: Google Workspace,
Microsoft 365.
-Desktop and Mobile OS: Different features but same digital ecosystem.
Digital Proficiency for Career and Everyday Living
oCareer: LinkedIn, Google Docs, MS Teams, Zoom for communication and
collaboration, etc.
oEveryday: UPI/online banking, e-learning platforms (Coursera, Swayam),
telemedicine, etc.
oBuilds adaptability and lifelong learning.
oEssential for both employability and personal efficiency.
Importance of Digital Literacy
-Essential in education, workplace, and personal life
-Improves employability and professional growth
-Enables ethical and responsible use of technology
-Helps in combating misinformation and enhancing productivity