A home to software testing, electronics circuits & projects, tips and tricks and digital diary.
A home to software testing, electronics circuits & projects, tips and tricks and digital diary.
Introduction The Grinder is an open source load testing tool. The Grinder uses Jython scripts and the scripts are executed using agents which can be distributed over the network. Property file is used to define tests and load. The Grinder…
Below is the regulated DC power supply( 12, 8, 5 v) circuit. This circuit can be customized by adding 9v and 6v voltage regulator. Also, the 4 diodes can be replaced by bridge rectifier. Parts list: T1 – Step down…
Simplest DC power supply circuit using 78XX is shown below. Parts D1, D2, D3, D4 – 1N4007 IC1 – 7812 IC2 – 7805 C1 – 1000 mf C2 – 330 mf C3 – 10 mf T1 – 12 v Step…
To understand power supply circuits, we need to understand rectifiers. A rectifier converts AC or alternating current to DC direct current. Rectifiers are used in Power supply circuits which we will discuss in detail. The process of converting AC to…
The six parameters of Web response time are listed below: Page size: Page size is measured in Kbytes, and on the surface, the impact of this variable is pretty obvious: the larger the page, the longer it takes to download.…
Truth About Test Plan Documents – 98% of test plan documents that are created are not updated, maintained or cared beyond sign off. – The first 5 pages of a test plan document contains history that doesn’t interest even those…
Although Linux is a really stable platform, there will be some times that a program will freeze. In those cases most people are stuck on what to do. Generally you have two choices for closing a stuck program:
What is Security testing? Security testing is a process to determine that an information system protects data and maintains functionality as intended. It is the process that determines that confidential data stays confidential and users can perform only those tasks…
Why is testing necessary? Testing is necessary because we all make mistakes. Some of those mistakes are unimportant, but some of them are expensive or dangerous. We need to check everything and anything we produce because things can always go…
Passive Components RESISTORS To oppose the flow of electrons ( current). The symbols are shown below. Resistance is measured in units called “Ohm”. 1000 ohms is shown as 1k ohm (103 ohm) and 1000 k ohm is shown as M.ohms…