Binary - 101 Computing

Logic Gates & Truth Tables

Administrator — Mon, 22 May 2017 18:20:02 +0000

Learning Objectives In this post you will predict the output of logic gates circuits by completing truth tables. First you need to learn the basic truth tables for the following logic gates: AND Gate OR Gate XOR Gate NOT Gate…

The post Logic Gates & Truth Tables first appeared on 101 Computing.

Binary Converter using Python

Administrator — Fri, 17 Feb 2017 18:09:27 +0000

Did You Know?Everything that is stored on a computer is stored as binary code. Binary code is made of bits (0 or 1). We often use Bytes to store data. A Byte is made of eight bits and can be…

The post Binary Converter using Python first appeared on 101 Computing.

Access Rights using Binary Masks

Administrator — Wed, 18 Jan 2017 15:53:58 +0000

Imagine a building with 8 rooms. Each room is fitted with a card reader used to give access or not to different members of staff. Each member of staff has a card giving them access to some of the rooms.…

The post Access Rights using Binary Masks first appeared on 101 Computing.

Digital Data – Terminology

Administrator — Tue, 15 Nov 2016 09:13:47 +0000

Complete this domino activity to revise key definitions on how text files, pictures and sound files are stored on a computer using binary code.

The post Digital Data – Terminology first appeared on 101 Computing.

Secret Code

Administrator — Thu, 26 Nov 2015 10:36:03 +0000

In this challenge we are putting your deciphering skills to the test. Here are your secret codes. Will you be able to decode these? Cipher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ipher #2 \u0055\u006e\u0069\u0063\u006f\u0064\u0065 \u0069\u0073 \u0061 \u0063\u0068\u0061\u0072\u0061\u0063\u0074\u0065\u0072 \u0073\u0065\u0074 \u0075\u0073\u0069\u006e\u0067 \u0032 \u0042\u0079\u0074\u0065\u0073 \u0070\u0065\u0072 \u0063\u0068\u0061\u0072\u0061\u0063\u0074\u0065\u0072 \u0077\u0068\u0069\u0063\u0068…

The post Secret Code first appeared on 101 Computing.

Binary Logic Activities

Administrator — Fri, 30 Oct 2015 12:55:25 +0000

Access a range of activities about binary logic, logic gates, truth tables and Karnaugh maps:

The post Binary Logic Activities first appeared on 101 Computing.

Karnaugh Maps

Administrator — Thu, 29 Oct 2015 20:31:04 +0000

Karnaugh maps are a tool used to simplify complex Boolean expressions. Using a Karnaugh map reduces the need for extensive calculations by taking advantage of humans’ pattern-recognition capability. Karnaugh maps are used to simplify real-world logic requirements so that they…

The post Karnaugh Maps first appeared on 101 Computing.

Why are there 1024 bytes in a kilobyte? (instead of 1000)

Administrator — Tue, 15 Apr 2014 21:15:00 +0000

Here is a good brainteaser when teaching binary code… Remember: Computers can only work with binary code. Computers don’t really like the number 1000 because in binary it’s not that straightforward: The binary code for 1000 is 1111101000 However computers…