Binary Digital representation
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This document discusses how computers use binary digits or "bits" represented as 1s and 0s to store and interpret all digital data, including text, numbers, images, and more. It explains that a bit can have one of two values (1 or 0) and how binary codes assign numeric values to different characters. The document also provides an example of converting a decimal number to its binary equivalent through repeated division and collecting the remainders.
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This document provides an overview of data representation in computer systems. It discusses how computers use binary numeric codes to represent different types of data like text, numbers, graphics and audio. These codes allow computers to interpret raw sequences of 0s and 1s as meaningful information. The document then explains binary number systems in more detail, how decimal numbers can be converted to and from binary, and how bytes and bits are used to store data in computer memory and represent characters. Specific examples are given of how binary representations are used in applications like robotics to control devices.
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Digital logic design deals with digital circuits and how to design digital hardware using logic gates. It involves working with binary and other number systems. Binary represents information using two states (0 and 1) which can be represented electrically using voltage levels. Converting between number systems like binary, decimal, and octal allows digital components to interface. Basic logic operations like addition, subtraction and multiplication can then be performed on binary numbers.
ICT - Lecture Notes 4.pdf
The byte 01000011 can represent different types of data like the integer 67, character 'C', pixel darkness level of 67, or sound sample decibel level of 67, depending on how the computer uses the byte. Operating systems manage computer resources like memory, processes, files, and devices. They also provide interfaces for users and allow for multitasking, multiprocessing, and timesharing to efficiently share the CPU across multiple tasks and users. Common operating systems include DOS, Mac OS, Windows, and Linux distributions like Ubuntu, Debian, and Red Hat Enterprise Linux.
1.1.1 BINARY SYSTEM
This lesson is for students taking the Cambridge School certificate exams Computer science subject(2210).I hope that it will of help to students in this period of crisis. Send me your feedback or suggestions on buxooa72@ gmail.com,
UNIT-I U20EST109 - PROBLEM SOLVING APPROACH - Copy (1).pptx
The document provides an introduction to computational thinking concepts including converting information to data, data types and encoding, and logic. It discusses how information is converted to continuous and discrete data, and how data is encoded through binary representations and bit strings. Different data types like numbers, text, colors, pictures and sound are also explained in terms of their encoding. The document then covers logic and computational thinking concepts like inductive and deductive logic, and how Boolean logic uses true/false propositions and logical operators.
DIGITAL PRESENTATION.pptx
Within a computer, information is represented and stored in binary digits (bits) that can have values of 1 or 0. Computers use binary codes to represent letters, numbers, and characters with each byte consisting of 8 bits. Common codes include ASCII which represents characters with 7 or 8 bits. Data storage is measured in bytes which can be aggregated to kilobytes, megabytes, gigabytes, and terabytes with precise values for each unit. Converting decimal to binary involves repeatedly dividing the number by 2 and recording the remainders from bottom to top to get the binary equivalent.
CONVERT AND CALCULATION.pptx
Although memory is technically any form of electronic storage,
it is used most often to identify fast, temporary forms of
storage. If your computer's CPU had to constantly access the
hard drive to retrieve every piece of data it needs, it would
operate very slowly. When the information is kept in memory,
the CPU can access it much more quickly. Most forms of
memory are intended to store data temporarily.
The CPU accesses memory according to a distinct
hierarchy. Whether it comes from permanent storage (the
hard drive) or input (the keyboard), most data goes in random access memory (RAM) first.
The CPU then stores pieces of data it will need to access, often in a cache, and maintains
certain special instructions in the register. Read-only memory (ROM) chips are located in the motherboard. ROM chips contain
instructions that can be directly accessed by the CPU. Basic instructions for booting the
computer and loading the operating system are stored in ROM. ROM chips retain their
contents even when the computer is powered down. The contents cannot be erased or
changed by normal means.
Data representation in a computer
This document discusses how computers represent different types of data using binary numbers. It explains that all data inside a computer is stored as binary digits (bits) that represent ON and OFF switches. Various data types like characters, pictures, sound, programs and integers are represented by grouping bits into bytes. The context determines how a computer interprets each byte. Standards like ASCII, JPEG and WAV define how different data is encoded into binary format and bytes. The document also covers number systems like binary, decimal, hexadecimal and their properties.
Presentation of ICT.ppt.pptx
A number system is a method of representing numbers using digits or symbols. The most common systems in computers are binary, which uses two digits (0 and 1), and decimal, which uses ten digits (0-9). Binary is fundamental to computers because it can easily represent on/off states in digital circuits. To convert between number systems, one determines the place value of each digit based on its corresponding power of the system's base, then multiplies and adds the values. ASCII is a character encoding standard that assigns unique numeric values to letters, numbers, and symbols, allowing computers to interpret text.
Computers numbering systems
The binary system uses only two digits, 0 and 1, with each column in the binary number representing a successive power of two. The hexadecimal system uses the digits 0-9 and letters A-F, with each column representing a power of 16, providing a more compact notation than binary. Binary Coded Decimal (BCD) represents each decimal digit with a 4-bit binary group to allow decimal numbers to be displayed digitally.
Carry out and perform calculation.pptx
This document discusses digital representation and binary conversion. It explains that computers use binary to represent letters, numbers and characters with strings of 1s and 0s. Each group of 8 bits is called a byte, which is the basic unit of digital storage. The document then demonstrates how to convert decimal numbers to binary by repeatedly dividing the number by 2 and recording the remainders. Finally, it provides a quiz with examples of converting between decimal and binary numbers.
Number system
This document discusses various number coding systems including 2's complement, binary coded decimal, Gray code, and ASCII. It explains how these codes represent numeric and character data in binary and how data can be stored in registers. Addition and subtraction are demonstrated using 2's complement numbers. The document also introduces the concept of transferring data between registers using digital logic circuits to process the information.
Digital electronics
Digital electronics
Lesson 1: Number System and Representation
Content: Decimal, Binary, Octal, Hexadecimal,
1‘s and 2‘s complements,
Codes – Binary, BCD, Excess 3, Gray, Alphanumeric codes
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Binary Digital representation
- 2. • Using our senses. • Our brains process it.
- 3. Within a computer, information is represented and stored in a digital binary format. The term bit is an abbreviation of binary digit and represents the smallest piece of data. Humans interpret words and pictures; computers interpret only patterns of bits.
- 4. A bit can have only two possible values, a one digit (1) or a zero digit (0). A bit can be used to represent the state of something that has two states. For example, a light switch can be either On or Off; in binary representation, these states would correspond to 1 and 0, respectively.
- 5. Computers use binary codes to represent and interpret letters, numbers and special characters with bits. A commonly used code is the American Standard Code for Information Interchange (ASCII). With ASCII, each character is represented by a string of bits. Codes can be used to represent almost any type of information digitally: computer data, graphics, photos, voice, video , and music.
- 6. The word binary comes from "Bi-" meaning two. We see "bi-" in words such as "bicycle" (two wheels) or "binocular" (two eyes). binary number is a number expressed in the binary numeral system, or base-2 numeral system
- 7. To show that a number is a binary number follow it with a little 2 like this: 1012 This way people won't think it is the decimal number "101" (one hundred and one).
- 8. Character Bin Dec • (ASCII) Capital letter: A 1000001₂ (65) Number: 9 111001 ₂ (57) Special character: # 100011 ₂ (35)
- 9. 1.To convert decimal whole numbers from base 10 to any other base, divide that number repeatedly by the value of the base to which the number is being converted. 2.The division operation is repeated until the quotient is 1. 3.The sequence of remainders from bottom up to yields the required binary equivalent.