Lesson 1 Data Manipulation – We learned that computers use hexadecimal as a shorthand for binary because it is more human-readable and efficient. Binary numbers can get long and hard to read so each hexadecimal digit represents 4 binary digits making it much shorter and easier to interpret.
Lesson 1 Data Manipulation – We learned that the internal language that a computer understands is binary. All modern computers are binary machines. In computers, the basic unit of information is called a bit and it can be either a 0 or 1. The word comes from a contraction of “binary digit “. The zero is a low-voltage state and the one is a high-voltage state. We practiced converting numbers from decimal to binary.
We investigated the relevance of microwave towers in today’s communication. We discovered that microwave towers are crucial for high-speed data networks, cellular networks, and broadband Internet to remote areas. They play a crucial role in providing communication during emergencies also for military and government agencies for secure and reliable communication. The advantages are that they are inexpensive to build and maintain compared to fiber-optic cables. The towers are highly reliable during harsh weather or power outages. They cover a wide area and are easily reconfigured to meet changing communication needs.
We watched a PowerPoint presentation I am developing to show examples of microprocessors and CPUs. Unit 3 History of Computers – We researched the contributions of John Napier, Herman Hollerith, and Harvard Mark I to the world of computers.
We learned about the variety of tasks a computer is capable of performing, from complex calculations, simulations, and artificial intelligence. We explored the different functions of a CPU and a microprocessor. We learned why microprocessors are made of silicon.
We learned about the inventors of calculating devices through history. We discovered the first mechanical device used to perform mathematical calculations and counting. Then we learned about a calculating machine developed to count taxes. We explored the development of a machine to make intricate pattern designs on a loom from punched cards. We learned about Charles Babbage who is called the father of today’s computers for his invention of the difference engine.
We looked at a US ASCII (American Standard Code for Information Interchange) chart. We understand this is an eight-bit character set with 256 characters and symbols. Ben took a quiz on cyber safety then he identified technical talk acronyms.
We learned why HTML uses the language and character set attributes. We learned about the header font size attribute and how to install a button to click on with the mouse. Then we practiced executing codes using these HTML commands.
