วีดีโอ

In this video I got the board assembled and manually step through some operations.

I was able to finish with the multiplexed output display for the computer. More information on what I am building can be found here: eater.net/8bit

The PX16C is an emulated recreation of the HP 16C. What I like about this calculator is that it has hexadecimal and binary as a first class citizen with dedicated buttons to switch between formats. Here is a link to what I bought, if you want to build your own: www.ebay.com/itm/325174297578

Getting this working took me a lot longer than it should have, but, it is working!

An update on the progress for my 8 bit breadboard computer. In this update I show the steps I took to understand and build the addressing portion of an Arduino based EEPROM programmer using two 74HC595N shift registers. More information on what I am building found here: eater.net/8bit

In this video I show the manual programmer I built to set the values on the EEPROM that will show the desired hex digits on the 7 segment displays.

Just finished the RAM module. I am building the design from Ben Eater. More can be found here: eater.net/8bit

In this video I show the 8 Bit Computer ALU module.

Three registers, A, B and the Instruction Register

Building a breadboard 8 bit computer. This is the first step of building a clock signal. It uses three NE555 timers and some logic gates.

In this video we solve a GraphQL lab in PortSwigger's Web Security Academy Labs.

In this video we write a Python script to solve a GraphQL lab in PortSwigger's Web Security Academy Labs.

In this video we solve a GraphQL lab in PortSwigger's Web Security Academy Labs.

In this video we solve a GraphQL lab in PortSwigger's Web Security Academy Labs.

Web Security Academy | GraphQL | 1 - Accessing Private GraphQL Posts

Web Security Academy | Sqli | Visible Error-Based Sql Injection

Web Security Academy | Practice Test | I failed

Web Security Academy | Test Prep - 3

Web Security Academy | Test Prep - 2

Web Security Academy | Test Prep - 1

Web Security Academy | Mystery Challenges | Practitioner - 5

Web Security Academy | Mystery Challenges | Practitioner - 4

Web Security Academy | Mystery Challenges | Practitioner - 3

Web Security Academy | Mystery Challenges | Practitioner - 2

Web Security Academy | Mystery Challenges | Practitioner - 1

Web Security Academy | Prototype Pollution | 10 - Exfiltrating Sensitive Data Via Server-Side PP

Web Security Academy | Prototype Pollution | 9 - Remote Code Execution Via Server-Side Prototype

Web Security Academy | Prototype Pollution | 8 - Bypassing Flawed Input Filters For Server-Side PP

Web Security Academy | Prototype Pollution | 7 - Detecting Server-Side Pollution Without Reflection