Page 12 - TP_Prime_v2.2_Class_4
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Pen Drive
Pen drive acts as a portable hard drive and is easy to use as it is small
and can be carried in a pocket and plugged into any computer with a
uSB drive. pen drive has storage capacity of upto 1tB. Pen Drive
Memory Card
Prime (Ver. 2.2)-lV Memory Card very small in size usually 1–1.5 inches. It is used in mobile phones
Memory card is commonly known as multimedia memory card. It is
and digital cameras. you need to have a card reader to read the
stored data on a memory card.
Solid State Drive (SSD)
An SSD is a type of storage device that holds information,
10 like your pictures, games, and documents. An SSD uses the
technique of flash memory to store data. It is much faster
than a hard disk. SSDs are more durable and reliable than hard SSD
disks. they come in various capacities, typically 128 GB to several tBs. Nowadays,
desktop computers and laptops come with SSD instead of traditional hard disk.
Measuring the Computer's Memory
The basic unit for measuring the memory of a computer is byte. A byte consists of
a group of eight bits, for example, 10001011, i.e., 1 byte equals to 8 bits. A group of
4 bits is known as a nibble (half byte), for example, 1001, i.e., 1 nibble equals to 4
bits. Other units for measuring the computer’s memory are kilobyte, megabyte,
gigabyte, terabyte, and so on.
1 Kilobyte (KB) equals 1024 bytes.
1 KB = 1024 Bytes
1 Megabyte (MB) equals 1024 KB.
1 MB = 1024 KB
1 Gigabyte (GB) equals 1024 MB. 1 GB = 1024 MB
1 terabyte (tB) equals 1024 GB. 1 tB = 1024 GB
1 petabyte (pB) equals 1024 tB. 1 pB = 1024 tB
1 eB = 1024 pB
1 exabyte (eB) equals 1024 pB.
1 ZB = 1024 eB
1 Zettabyte (ZB) equals 1024 eB. 1 yB = 1024 ZB
1 yottabyte (yB) equals 1024 ZB.

