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First released in 1982, the luggable computer is an early computer that was easier to move than other computers, weighing around 15 to 30 pounds. These computers had a small CRT display and keyboard as one unit. In some cases, the keyboard was separate. While not anything like laptops, these computers offered several benefits for mobility compared to the standard computer at the time. The picture shows a Compaq Portable II computer and an example of a luggable computer....

An early version of a product not yet manufactured or released is called a prototype. Prototypes allow engineers or other testers to verify a product is free of errors before it is released to the public. Beta, Business terms, Hardware terms, RC Prototyping is also a verb, meaning to create a prototype. For example: “Before we develop the software, we should prototype our idea. Prototyping will help us gauge its viability before we commit vital resources to the project....

Abbreviated pty, a pseudoterminal is a text-based software user interface designed to replace the hardware terminal interfaces of the 1970s. The first pseudoterminal was released in 1983 as part of the BSD 4.2 operating system. Computer abbreviations, Network terms, Pts, Terminal Related information Timeline of computer and technology history. Past and present computer pioneers.

Recursion may refer to any of the following: When referring to computer programming, recursion refers to a function or subroutine that calls itself purposely or by mistake. Recursion is commonly performed to solve problems capable of being resolved by deduction; many numeric problems can often be resolved by recursion. When referring to a network or domain name servers, recursion refers to an available option that enables or disables the ability of name servers sending requests from other name servers....

A source document is the location where a document or a portion of another document was retrieved. For example, when using an optical scanner, the document being scanned is considered the source document. Document, Hard copy, Scanner terms, Source, Word processor terms Related information How to scan a document into a computer. How to digitize a negative and slide on my computer. How to scan a document on a smartphone. Scanner help and support....

A third-generation programming language (3GL), is a programming language that is machine-independent. Programs written in a 3GL can be compiled to run on many different devices. Compare this to a first-generation programming language (machine code), or a second-generation programming language (assembly language). In those languages, the program is written specifically for a certain type of CPU and instruction set. 3GLs first appeared in the 1950s with the development of FORTRAN, ALGOL, and COBOL....

An aimbot is a software tool used in first-person shooting games that allow the player to shoot enemies without having to aim their weapon. Because this helps the player shoot more accurately with less skill, it is considered cheating. Various programs are available to help detect or not allow players to use aimbots. One commonly used program is PunkBuster. Computer Hope does not assist users in locating ways to cheat in online games....

Alpha may refer to any of the following: An alpha is an early test version of a computer software program or hardware device that comes before the beta test in the software release life cycle. Alpha testing is done by the developer of the program or manufacturer of the hardware. Developers often only test parts or specific features that may eventually make it into the final product. When the product enters the beta stage, it’s often released to a select few outside the company....

In general, absolute refers to anything complete and always true. For example, when talking about computer memory, an absolute address is an exact location in memory. When accessing stored information in memory, a computer needs an absolute address to know where information can be retrieved. If the computer was given a random address, it wouldn’t retrieve the correct information. Examples of terms using absolute Below are examples of computer-related terms relating to absolute....

Alternatively called a grounding mat, an antistatic mat is a floor or table mat that reduces the risk of electrostatic discharge while working with electrostatic sensitive equipment. The picture shows an example of a laptop being repaired by a technician. The blue mat under this laptop is an antistatic mat. Antistatic device, Electronics terms, ESD, Tools, Wrist strap

End may refer to any of the following: End is a key found on most computer keyboards that moves the cursor or screen position to the end of a line, page, or other area. See our End key page for examples, pictures, and further information. In general, the end is the final part of something. For example, the ending word of the last sentence was “something.” End computer-related examples Below are other examples of end and terms relating to an end when dealing with computers....

Alternatively called a disc drive, optical media, optical storage, and Optical disc drive, an optical disc is any media read using a laser assembly. The most common types of optical media are Blu-ray, CDs, and DVDs. Computers can read and write to CDs and DVDs using a CD writer or DVD writer drive, and a Blu-ray is read with a Blu-ray drive. Drives such as a CD-R and DVD-R drives that read and write information to discs are known as MO (magneto-optic)....

Analog may refer to either of the following: Analog or analogue is an electronic communication sent as signals of varying frequency. While digital signals communicate a binary value, such as ON or OFF, analog signals are best represented as graphs. Analog methods allow the equipment to handle information that continuously changes, such as voltage, current, and waves. In the pictured example of a wave, it has a high and low value with numerous points in-between....

In general, an app store is an app that helps a user find software and install it on their computer or mobile device. It’s a collection of free or commercial software and games approved for use on your device. You can browse, purchase, download, install, and update software through your device’s app store. Benefits of using an app store The software available on an app store is officially approved by the store operator....

Difficulty Moderate Steps 26 Time Required 45 minutes - 1 hour Sections 6 Middle Trim 5 steps L1 and R1 Buttons 2 steps Rear Case 4 steps Battery 2 steps Motherboard Removal 10 steps Light Guide 3 steps Flags 0 BackDualSense Controller v1 Full Screen Options History Save to Favorites Download PDF Edit Translate Get Shareable Link Embed This Guide Notify Me of Changes Stop Notifications Introduction Note: This guide is for DualSense controllers with an FCC ID ending in 1....

Difficulty Moderate Steps 9 Time Required 5 - 10 minutes Sections 5 Back Phone Cover 1 step Battery 1 step Sim Card 1 step Back Dark Grey Case 3 steps Motherboard 3 steps Flags 1 Missed a Step Oops! This guide is currently missing some important steps. BackSony Ericsson z300 Full Screen Options History Save to Favorites Download PDF Edit Translate Get Shareable Link Embed This Guide Notify Me of Changes...

Difficulty Moderate Steps 10 Time Required 30 minutes - 1 hour Sections 1 Motherboard/Camera(s) 10 steps Flags 0 BackPlayStation Camera Full Screen Options History Save to Favorites Download PDF Edit Translate Get Shareable Link Embed This Guide Notify Me of Changes Stop Notifications Introduction The outer case will scratch easily if the device is not handled with care during the opening process. If the aesthetics don’t matter to you, this will not be a problem....

Released May 2016 by The University of Alabama Student-Contributed Wiki An awesome team of students from our education program made this wiki. No matter what you do, the speaker won’t turn on. First, press and hold the reset button. If this doesn’t work, make sure the power cord is firmly connected to the speaker and power source. If the speaker still won’t turn on, the battery may be drained. If charging successfully, the CHARGE indicator lights up in orange....

Difficulty Very easy Steps 2 Time Required 1 minute Sections 1 Battery 2 steps Flags 0 BackSony Vaio VPCEA3C5E Full Screen Options History Save to Favorites Download PDF Edit Translate Get Shareable Link Embed This Guide Notify Me of Changes Stop Notifications Introduction Step 1 Battery Place the laptop so the bottom is facing up. Pull the release and lock buttons near the top of the device to release the battery....

Difficulty Moderate Steps 12 Time Required 1 - 2 hours Sections 1 Screen 12 steps Flags 4 Action Shots Be an action hero! This guide needs images that better demonstrate how to perform specific actions. Confusing Text Some of this guide’s text is confusing, duplicated, or off-topic. Clarify it by editing! Incorrect Tools Help make this guide better by using the correct tools in images and/or text. Needs Better Images Better photos will improve this guide....