Characteristics of Main Memory

  • Semiconductor memories.
  • Faster than secondary memories.
  • A computer cannot run without primary memory.
  • It is the working memory of the computer.
  • Usually volatile memory.
  • Data is lost in case the power is switched off.

Understanding file sizes | Bytes, KB, MB, GB, TB, PB, EB, ZB, YB

The memory of a Computer is any physical device that is capable of storing information whether it is large or small and stores it temporarily or permanently. For example, Random Access Memory (RAM), is a type of volatile memory that stores information for a short time, on an integrated circuit used by the Operating System. 

Memory can be either volatile or non-volatile. Volatile memory is a type of memory that loses its contents when the computer or hardware device is switched off. RAM is an example of a volatile memory i.e. if your computer gets rebooted while working on a program, you lose all the unsaved data. Non-volatile memory is a memory that keeps its contents saved even in the case of power loss. EPROM((Erasable Programmable ROM) is an example of non-volatile memory. 

Table of Content

  • Memory
  • Characteristics of Main Memory
  • Units of Memory
  • Types of File Sizes
  • Tabular Representation of Various Memory Sizes 
  • Data Transfer Speeds:
  • FAQ- Understanding File Sizes

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Memory

Computer Memory is the hardware part of the system that stores data, information, and instructions. It is a device where data is stored, data is processed and instructions required for data processing are also stored. Computer memory stores both types of data that is, input and output....

Characteristics of Main Memory

Semiconductor memories. Faster than secondary memories. A computer cannot run without primary memory. It is the working memory of the computer. Usually volatile memory. Data is lost in case the power is switched off....

Units of Memory

A computer processor is made up of multiple decisive circuits, each one of which may be either OFF or ON. These two states in terms of memory are represented by a 0 or 1. To count higher than 1, such bits (Binary Digits) are suspended together. A group of eight bits is known as a Byte. 1 Byte can represent numbers between zero (00000000) and 255 (11111111), or 28 = 256 distinct positions. Of course, these bytes may also be combined to represent larger numbers. The computer represents all characters and numbers internally in the same fashion....

Types of File Sizes

Bit Nibble Byte Kilo Byte Mega Byte Giga Byte Tera Byte Peta Byte EXA Byte Zetta Byte Yotta Byte...

Tabular Representation of Various Memory Sizes

Name Equal To Size (In Bytes) Bit 1 Bit 1/8 Nibble 4 Bits 1/2 (rare) Byte 8 Bits 1 Kilobyte 1024 Bytes 1024 Megabyte 1, 024 Kilobytes 1, 048, 576 Gigabyte 1, 024 Megabytes 1, 073, 741, 824 Terabyte 1, 024 Gigabytes 1, 099, 511, 627, 776 Petabyte 1, 024 Terabytes 1, 125, 899, 906, 842, 624 Exabyte 1, 024 Petabytes 1, 152, 921, 504, 606, 846, 976 Zettabyte 1, 024 Exabytes 1, 180, 591, 620, 717, 411, 303, 424 Yottabyte 1, 024 Zettabytes 1, 208, 925, 819, 614, 629, 174, 706, 176...

Data Transfer Speeds:

File transfer speed or data transfer speed refers to the speed at which data is transmitted from one source to another. Typically measured in bits or bytes per second. Some of the file transfer speeds are:...

FAQ- Understanding File Sizes

Q1. What are file sizes in order?...