Page 17 - Digital Age - 3

Try This Logical Thinking

Unscramble the given letters to form names of different input and output devices.
1. NERCANS ________________________

2. ROMINOT ________________________
3. HOMIROCNEP ________________________
4. OTREROCPJ ________________________

5. YTKICOSJ ________________________

Processing Devices

The hardware devices that are used to process the input and
convert it into output are called Processing devices. The most
important processing device in a computer is the Central Processing

Unit (CPU). Also called the microprocessor, it controls all other
hardware connected to the computer. It also manages the overall
functioning of the computer system. CPU Chip

The CPU is divided into three main components:
• Control Unit (CU)

• Arithmetic and Logical Unit (ALU)
• Memory Unit (MU)

Storage Devices

The memory unit of the CPU can hold only a limited amount of data temporarily. Storage
devices are hardware devices that can store large amounts of data permanently in the
form of files. Storage devices are both input as well as output devices, as they let you
read from and write data to the device.

Hard Disk

A Hard disk is the main storage device in a computer. It is a thin circular
metallic disk coated with magnetic material and encased in a metallic
box. The metallic disk rotates inside its case to read and write data. A
hard disk can be internal, fixed inside the computer or external, that can

be carried anywhere. Their storage capacity is from 500 GB upto 4 TB. Hard Disk

Solid State Disk (SSD)

A Solid State disk, or SSD, is similar to a hard disk but contains no
moving parts. Its read and write speeds are much faster than that
of a hard disk. SSDs are commonly used in laptops. Their storage

Solid State Disk (SSD) capacity varies from 256 GB to 2 TB.

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