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Tap: Quickly touch the screen to select an item, open an app, or activate a link. It functions similarly to
clicking with a mouse but on your touchscreen.
Tap and hold: Hold your finger on the screen to reveal additional options or move
items around, analogous to right-clicking with a mouse.
Pinch: Place two fingers on the screen and move them closer together or
apart to zoom in or out on maps, photos, or web pages, adjusting the view size
accordingly.
Swipe: Slide your finger to the right, left, up, or down on the screen to switch
between screens or navigate through content, resembling flipping through pages
in a book.
Drag: Hold your finger on the screen and move it across to select text, rearrange icons, or smoothly scroll
through pages.
Double tap: Quickly tap twice on the screen to zoom in on a picture or text, making it larger and easier to
view details.
SESSION 4 Parts of a Computer and Peripherals
A computer system is a machine designed to store information,
retrieve it as needed, and perform calculations and logical
operations to produce useful results. It consists of three main
components: the input unit, the Central Processing Unit (CPU),
and the output unit. In desktop computers, these components
are separate. The input unit includes devices like keyboards for
entering data and instructions.
The CPU acts as the computer’s brain, with its control unit
managing instructions, Arithmetic and Logic Unit performing
calculations, and Memory unit temporarily storing data. The
output unit, such as the monitor, displays results in a format that users can see and understand.
Laptops integrate all these components into a single device. Devices like keyboards and screens, connect
to the computer using ports. This setup allows computers to handle tasks ranging from simple data
entry to complex calculations, presenting results that users can interact with effectively. Fundamentally,
a computer system operates with the help of both Hardware and Software. These components work
together seamlessly to enable various functions and operations, enhancing the computer’s usability and
versatility.
HARDWARE
Hardware is the physical parts of a computer system that you can touch and see. It includes the CPU, handling
calculations and tasks. Memory (RAM) helps the computer remember things while it’s working. Storage
devices store all the computer’s files and data. Input devices like keyboards and mice let us interact with
the computer, while output devices like monitors and printers show us what the computer is doing. The
motherboard connects all these parts together so they can work together smoothly. Together, these hardware
components enable computers to do everything from playing games to helping with schoolwork.
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