Bits and bytes September 19, 2017.

Slides:

Advertisements

Similar presentations

Hardware Lesson 3 Inside your computer.

Advertisements

STORAGE MEDIA & STORAGE DEVICES BASIC TERMS: Recording or saving data future use. Store/Save device that holds the data or information. Storage Media.

Vocabulary Electronic pulses Transistors Decimal numbers

Micro optics: Fibers and Butterflies. Total internal reflection.

Computer Architecture. Central Processing Unit (CPU)- micro processor The Personal Computer.

Processing Data.

1 Introduction to Computers Prof. Sokol Computer and Information Science Brooklyn College.

Units of Storage What is Storage. A look at Storage We know computers can store large amounts of data. We measure the storage capacity of different storage.

assumes basic arithmetic

Unit 3—Part A Computer Memory

Number Systems & Logic Gates Day 1

CREATED BY, MS. JENNIFER DUKE BITS, BYTES, AND UNITS OF MEASUREMENT.

Bits, Bytes, KiloBytes, MegaBytes, GigaBytes & TeraBytes.

Communications Technology 2104 Mercedes Lahey. Bit 1. bit=From a shortening of the words “binary digit” 2. the basic unit of information for computers.

Communications technology Ali Kennedy.  Bit= from a shortening of the words “ bi nary digit”  The basic unit ofinformation for computers  1 or 0 are.

Computer Systems. Basic Components Auxiliary Storage OutputProcessor Main Memory Input.

Computer Systems Chapter 1 Pages Hardware-physical pieces Key hardware components in a computer system: The physical parts. – Central processing.

Introduction to Computers

1 Introduction to Computers Prof. Sokol Computer and Information Science Brooklyn College.

Data Representation A series of eight bits is called a byte. A byte can be used to represent a number or a character. As you’ll see in the following table,

Hardware Data Storage.

 Explain the function of ASCII code  Describe the unit of data measurement: Bit, Bait, KB, MB, GB, TB  Describe the unit of clock speed Megahertz and.

 Computers store all information digitally as 0s and 1s; we refer to this collectively as “data.”  We’re used to dealing with physical objects in reality,

Getting to know Storage Media 1.Stores information 2.Retrieve information for later use.

Inside your computer. Hardware Review Motherboard Processor / CPU Bus Bios chip Memory Hard drive Video Card Sound Card Monitor/printer Ports.

Inside your computer. Hardware Motherboard Processor / CPU Bus Bios chip Memory Hard drive Video Card Sound Card Monitor/printer Ports.

1 3 Computing System Fundamentals 3.2 Computer Architecture.

Memory and Storage Computer Technology K. Steere.

Bits and Bytes IGCSE. A binary number is either a 0 or a 1 and is known as a 'bit' or b inary dig it. However, the CPU cannot deal with just one bit at.

 Bits & Bytes Bits & Bytes  Units of data Units of data  Storage devices Storage devices  Storage Types Storage Types  Secondary Storage Secondary.

Units of Storage 1.5 Types of Memory and Storage.

Do it now activity Can you work out what the missing symbols are and work out the order they should be in if the table shows smallest to largest KB kilobyte.

How We Measure Memory. Learning Goal Today we are going to learn how the computer stores information.

Networking for Home and Small Businesses –.  Explain the binary representation of data.

Computers - The Journey Inside continues…

How We Measure Memory. At the Bottom of things A piece of digital information is always stored as a sequence of binary states. What’s that mean you ask???

2.1.4 Data Representation Units.

Welcome Back! 1.Walk quietly to your seat 2.Place your backpack under your seat 3.Turn on your computer and log in 4.Log into (remember,

Bits and Bytes. Overview  Bits - A binary decision  Byte - Most common unit of measurement for computer architectures (megabytes, mebibytes, gigabytes,

Memory The term memory is referred to computer’s main memory, or RAM (Random Access Memory). RAM is the location where data and programs are stored (temporarily),

File types and storage. Primary and Secondary storage  Primary – built into the computer, the computers memory capacity  RAM – random access memory.

Binary Numbers. Base 10 and Base 2  We normally work with numbers in base 10.  In base 10 we use the digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9.  Everything.

© OCR 2016 Unit 2.6 Data Representation Lesson 1 ‒ Numbers.

Digital Storage Digital Storage Ann Ware ~

Understanding binary Understanding Computers.

© 2003, Cisco Systems, Inc. All rights reserved.

Storage Hardware This icon indicates the slide contains activities created in Flash. These activities are not editable. For more detailed instructions,

Computer Hardware and Software

Memory Parts of a computer

Information Support and Services

What is Binary? Binary is a two-digit (Base-2) numerical system, which computers use to process and store data. The reason computers use the binary system.

File Sizes Bits and Bytes.

Unit 2.6 Data Representation Lesson 1 ‒ Numbers

3 - STORAGE: DATA CAPACITY CALCULATIONS

Computer Hardware Introduction.

Introduction to Computers

Unit 3—Part A Computer Memory

Data Representation Numbers

How do computers work? Storage.

Unit 3—Part A Computer Memory

Bits, Bytes, and Storage.

Fundamentals of Data Representation

Digital Storage Digital Storage

Introduction to Computers

Digital Storage Digital Storage Ann Ware ~

Computer Hardware.

Information Technology Department

CSE 102 Introduction to Computer Engineering

Presentation transcript:

Bits and bytes September 19, 2017

Units of measure Recall: Eight bits of data are called a byte. A single character of ASCII text requires one byte. How many bytes would be needed to store “hello” in a plain text document? Plain text document (.txt): 5 bytes Word document (.docx): 21,969 bytes Why the difference??

Bytes Kilobyte (KB): about 1,000 bytes (103) Megabyte (MB): about 1,000 KB, or 1 million (106) bytes A 3.5” floppy disk has a capacity of 1.44 MB. Gigabyte (GB): about 1,000 MB, or 1 billion (109) bytes A DVD disk has a capacity of 4.7 GB. Terabyte (TB): about 1,000 GB, or 1 trillion (1012) bytes

Why “about”? Since all of these measures are based on bits, which are in turn based on powers of 2, there is a school of thought that says 1 KB = 210 bytes. 210 = 1024 bytes Similarly, 1 MB = 220 bytes = 1,048,576 (10242) bytes 1 GB = 230 bytes = 1,073,741,824 (10243) bytes… The terms “kibibyte,” “mebibyte,” “gibibyte,” and “tebibyte” have been introduced as a means of referring to this powers-of-2 interpretation. For our purposes, stick with the powers-of-10 interpretation.

Unit conversions Simple math: If you have n bytes, you have n/1000 KB. 23,000 bytes = 23 KB. Similarly, if you have n KB, you have n/1000 MB. 45,400 KB = 45.4 MB. Et cetera.

Unit conversions 2,000,000 bytes is about how many MB? 23,000 KB is about how many MB? 500 KB is about how many MB? 4,000,000,000 bytes is about how many GB? Suppose you have several 5 MB .jpg images. How many would fit on a 16 GB flash drive?