One of the best methods to capture a Unix terminal session is to use the `script` command. In this example we start a script session, run a couple of commands, and then use the `exit` command to stop capturing the terminal session: $ script Script started, output file is typescript $ pwd /home/will $ ps PID TT STAT TIME COMMAND 11909 p0 Ss 0:00.05 -bash (bash) 25622 p0 S+ 0:00.01 script 25623 p1 Ss 0:00.01 /usr/local/bin/bash -i 25624 p1 R+ 0:00.00 ps $ exit Script done, output file is typescript Read More

A tablet PC is a laptop or slate-formed mobile computer that is outfitted with a touchscreen or screen that can be controlled with a digital pen or stylus, or via finger touch.  A tablet PC does not require a keyboard or mouse. End-users can directly key in data on a tablet PC. It also offers greater mobility than a conventional laptop. Types of Tablet PCs There are different types of table PCs available in the market today, based on industry and consumer requirements. The different tablet PC form factors are: Read More

A throttle position sensor is a device that can detect a difference in throttle position. The Engine Control Unit (ECU) uses throttle position sensors in internal combustion engines to gauge the throttle’s position as well as the rate of change in the throttle’s position in order to relay this information to other devices in the engine. In fact, virtually all internal combustion engines’ ignition timing and fuel injection rely on a throttle position sensor. Applications Although throttle position sensors are almost exclusively found in internal combustion engines, they can perform Read More

A constructor is a special dedicated method to initialize a new instance of a class. The constructor method for a class will have the same name as the class. A class can contain more than one constructor method, but each having a different set of parameters. They are called overloaded constructor methods. A constructor method is the first method that’s called and executed when a new object is instantiated. It’s primary usage is to assign default values to variables, do basic cleanup or calculation, etc. A constructor method is not Read More

Lightscribe is a technology that allows users to burn labels into the surface of a CD, DVD, or Blu-Ray disc. Lightscribe allows users to personalize their discs and create custom discs for businesses, musicians, and venues. Rather than using stick-on labels that many discs are outfitted with, Lightscribe technology uses a disc burner’s laser to physically etch a design into the disc itself. Lightscribe technology can be used to personalize a disc collection. This may include etching the user’s face or friends on a disc in order to show ownership, Read More

A Smart Card is a plastic card the size of a credit card with an integrated circuit built into it. This integrated circuit may consist only of EEPROM in the case of a memory card, or it may also contain ROM, RAM and even a CPU. Most smart cards have been designed with the look and feel of a credit or debit card, but can function on at least three levels (credit – debit – personal information). Smart cards include a microchip as the central processing unit, random access memory Read More

Most stage lighting software use the DMX512-A protocol to communicate with lighting hardware. Adapters to connect DMX512-A hardware to PC USB or Parallel ports are widely available. Freestyler FreeStyler controls all DMX512 equipment like scans, movingheads, and dimmers. Freestyler is compatible with many commercial and free DMX interfaces. Freestyler specifications: Up to 512 fixtures Over 15 interfaces supported MEVP compatible Build-in chaser for par cans Touchscreen compatible (dual screen) MIDI support Shmithz Simple DMX Control – Simple DMX Control is a very simple control desk with 16 channels, 2 presets, Read More

A Java object is basically a set of data, data structures, and methods combined together to form a single entity. An object is an instance of class. Therefore, a class is said to be a blueprint of an object. Every object instantiated from a class will contain its own copy of member variables and member methods (unless they are declared static). Member methods are created to help an object process its member variable and take required actions. Creating Objects The are three major steps involved while creating an object from Read More

Scanner software allows users to scan printed material into a computer and translate into text, Word format, PDF format, HTML format, or even Excel format. While all scanning software is slightly different from other programs, most of them have the same core features. These features include character recognition, page layout reconstruction, support for various languages, a user interface of some kind, special features for specific projects, multi-engine voting technology, and searchable PDF support. Scanning software also differs in the speed in which it is able to convert a printed material Read More

An if/else statement tests a particular condition, if the condition evaluates to true, a course-of-action is followed i.e. a statement or a set of statements is executed. Otherwise another set of instructions are executed (the else block). Such statements are called program control statements that control the flow of execution in a program. Normally, the statements are executed sequentially as written in the program. This is known as normal flow of control. But sometimes, the flow of control of a program has to be altered depending upon certain conditions. The Read More