The document describes various computer peripherals and components, including image scanners, mice, keyboards, monitors, barcode readers, solid-state drives, USB flash drives, hard disk drives, central processing units, random-access memory, and printers. Each component's function and role in a computer system is briefly outlined. Overall, it serves as an overview of essential computer hardware.

1. Pen Drive
An image scanner—often
abbreviated to just scanner
—is a device that optically
scans images.
A computer mouse is a
hand-held pointing device
that detects two-
dimensional motion
relative to a surface.
A computer keyboard is a
peripheral input device
modeled after the
typewriter keyboard
Scanner Mouse Keyboard
A computer monitor is an
output device that displays
information in pictorial or
textual form.
A barcode reader or
barcode scanner is an
optical scanner that can
read printed barcodes
A solid-state drive is a
solid-state storage device
that uses integrated circuit
assemblies to store data
persistently,
Monitor Barcode Reader SSD
A USB flash drive is a data
storage device that
includes flash memory with
an integrated USB
interface.
A hard disk drive, hard
disk, hard drive, or fixed
disk, is an electro-
mechanical data storage
A central processing unit —
also called a central
processor or main
processor—is the most
important processor in a
given computer.
Hard Drive Processor
CPU is short for Central
Processing Unit. It is also
known as a processor or
microporcessor.
Random-access memory is
a form of computer
memory that can be read
and changed in any order.
In computing, a printer is a
peripheral machine which
makes a persistent
representation of graphics
or text, usually on paper.
CPU RAM Printer
C O M P U T E R P A R T S
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