Download presentation

Presentation is loading. Please wait.

Published byJulia Ramirez Modified over 3 years ago

1
Intro to IT - Bits and Bytes 1 Bits and Bytes

2
BIT Modern computers are binary: Everything is represented as being on one of two possible states: the state of being a 1 the state of being a 0 A bit is the name for this smallest unit of storage in a computer. Bit is sort-of derived from "Binary digIT". Intro to IT - Bits and Bytes 2

3
Digital Marketing and advertising folks have decided to characterize anything that is based on bits as being "digital". Digital Cable TV Digital Telephone Digital Camera Digital Audio A better name might actually be discrete... Intro to IT - Bits and Bytes 3

4
Byte A ordered sequence of 8 bits. Modern computers are based on memory systems organized as bytes of memory. Memory sizes are typically given in numbers of bytes: "I would like a burger, fries and 512 Mega bytes of memory". "I have a 32Giga byte iPhone, so I am better than you". Intro to IT - Bits and Bytes 4

5
64 bit machine A machine that processes information in 64 bit chunks. The processor simply transports the information 64 bits at a time The data-path, or bus, that runs to and from the processor is 64 bits wide. 8 bits still = byte, 8 bytes at a time Intro to IT - Bits and Bytes 5

6
How many bytes are there? Keep in mind that a byte is a sequence of 8 bits. Each bit can be either a 0 or a 1. How many sequences of 8 0/1s are possible? Here are a few: 00000000 00010000 10000000 10101010 Intro to IT - Bits and Bytes 6

7
# of byte values: derivation 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 # of bytes = 2 8 = 256 There are 256 possible byte values. Although I may have 4 billion+ bytes in my iPod, there are only 256 different values, so many of them are identical! Intro to IT - Bits and Bytes 7 10011101

8
Base 2 Numbers (binary numbers) We can talk about byte values by treating a byte as a base 2 number: 64 + 16 + 4 + 2 = 86 01010110 2 = 86 10 Intro to IT - Bits and Bytes 8

9
Hexadecimal Base 16 is also used when talking about byte values. Each group of 4 bits corresponds to a single hex digit. Intro to IT - Bits and Bytes 9 BinaryHexDecima l BinaryHexDecima l 000000100088 000111100199 0010221010A10 0011331011B11 0100441100C12 0101551101D13 0110661110E14 0111771111F15

10
Binary to Hex 11010110 2 = D6 16 = 214 10 Intro to IT - Bits and Bytes 10

11
Binary-Hex-Decimal Quiz Fill in the blanks Intro to IT - Bits and Bytes 11

Similar presentations

OK

CMSC 104 1 Machine Architecture and Number Systems Topics Major Computer Components Bits, Bytes, and Words The Decimal Number System The Binary Number.

CMSC 104 1 Machine Architecture and Number Systems Topics Major Computer Components Bits, Bytes, and Words The Decimal Number System The Binary Number.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on blind stick with sensors Ppt on formal education chico Ppt on tata trucks Ppt on indian national animal tiger Ppt on waves tides and ocean currents video Ppt on global warming for class 10 Show ppt on second monitor Ppt on self management skills Ppt on water activity in food Ppt on operating system for class 9