Computer Data Storage ... In contemporary usage, 'memory' usually refers to semiconductor storage read-write random-access memory, typically DRAM (Dynamic-RAM). Memory can refer to other forms of fast but temporary storage...
Rugged Computer ... Construction Virtually all rugged computers share an underlying design philosophy of providing a controlled environment for the installed electronics...
Arithmetic Logic Unit ... Early computers used a wide variety of number systems, including ones' complement, two's complement sign-magnitude format, and even true decimal systems, with various representation of the digits... Therefore, while even the simplest computer can calculate the most complicated formula, the simplest computers will usually take a long time doing that because of the several steps for calculating the formula...
Subnotebook ... These computers are often confused with the "ultra-mobile PC" category, which is the name of a platform of small form-factor tablet PCs...
Central Processing Unit ... On personal computers and small workstations, the CPU is housed in a single silicon chip called a microprocessor...
Computer Program ... Computer source code is often written by computer programmers. Source code is written in a programming language that usually follows one of two main paradigms: imperative or declarative programming...
Periphere Computer-Systeme ... In addition to UNIX computers, PCS also manufactured industrial terminals. Eventually, PCS was bought out by Mannesmann-Kienzle, which in turn was bought out by Ken Olsen to become part of DEC, Digital Equipment Corporation...
Konrad Zuse ... Zuse was also noted for the S2 computing machine, considered the first process-controlled computer. He founded one of the earliest computer businesses in 1941, producing the Z4, which became the world's first commercial computer...
Software ... Computer software is so called to distinguish it from computer hardware, which encompasses the physical interconnections and devices required to store and execute (or run) the software. At the lowest level, execunguage consists of groups of binary values signifying processor instructions that change the state of the computer from its preceding state...
Colossus Computer ... The Colossus computers were used to help decipher teleprinter messages which had been encrypted using the Lorenz SZ40/42 machine—British codebreakers referred to encrypted German teleprinter traffic as "Fish" and called the SZ40/42 machine and its traffic "Tunny"...
Personal Digital Assistant ... The first PDA was released in 1986 by Psion, the Organizer II. Followed by Psion's Series 3, in 1991, which began to resemble the more familiar PDA style...
Computer ... Conventionally a computer consists of some form of memory, at least one element that carries out arithmetic and logic operations, and a sequencing and control unit that can change the order of operations based on the information that is stored. Peripheral devices allow information to be entered from an external source, and allow the results of operations to be sent out...
Mobile Broadband ... The GSM Association of telecommunication manufacturers, mobile phone producers, integrated circuit manufacturers and notebook manufacturers have joined forces to push built-in support for mobile broadband technology on notebook computers...
High-level Programming Language ... The first high-level programming language designed for computers was Plankalkül, created by Konrad Zuse...
Personal Computer Hardware ... EISA Micro Channel architecture ISA: expansion card slot format obsolete in PCs, but still used in industrial computers... Most modern computers have hardware support for sound integrated in the motherboard chipset but some users prefer to install a separate sound card as an upgrade...
Programming Language ... The earliest programming languages predate the invention of the computer, and were used to direct the behavior of machines such as Jacquard looms and player pianos. Thousands of different programming languages have been created, mainly in the computer field, with many more being created every year...
Desktop Replacement Computer ... Desktop replacement computers are also often used with a port replicator, to fully enjoy the desktop comfort... Design features Modern desktop replacements generally perform better than traditional laptop-style computers as their size allows the inclusion of more powerful components... However, these advantages generally come at a price premium, with many computers in this class costing as much as two desktop computers with similar specifications...
Software Bug ... Bugs trigger errors that can in turn have a wide variety of ripple effects, with varying levels of inconvenience to the user of the program. Some bugs have only a subtle effect on the program's functionality, and may thus lie undetected for a long time...
Further Reading: Laptops
List Of Laptop Brands And Manufacturers ... the units sold by all ODMs add up to 144.3 million laptops, which is much more than the given total of 125 million laptops...
Personal Computer ... Software applications for personal computers include, but are not limited to, word processing, spreadsheets, databases, Web browsers and e-mail clients, digital media playback, games, and myriad personal productivity and special-purpose software applications. Modern personal computers often have connections to the Internet, allowing access to the World Wide Web and a wide range of other resources...
Laptop Theft ... The incidence of laptop theft has been growing at a steady rate as laptop use continues to grow, and more than 1 in 10 laptops will be stolen within their lifetime... Best practices against laptop theft Depending on what is kept on a particular laptop, lack of proper security precautions allows a thief to easily acquire such information as personal bookkeeping files, documents containing passwords, addresses, as well as employee and customer information stored on company laptops...
Pointing Device ... While the most common pointing device by far is the mouse, many more devices have been developed. A "rodent" is a technical term referring to a device which generates mouse-like input...
Internet Access ... Broadband Internet access may give access to Internet services such as: Much faster world wide web browsing Telephony, radio, television and videoconferencing Virtual private networks and remote systems administration Online gaming especially massively multiplayer online role-playing games which are interaction-intensive "Broadband penetration" is now treated as a key economic indicator. Even though information signals generally travel nearly the speed of light in the medium no matter what the bit rate, higher rate services are often marketed as "faster" or "higher speeds"...
Computer Cooling ... Components which produce heat and are susceptible to temporary malfunction or permanent failure if overheated include integrated circuits such as CPUs, chipset, graphics cards, and hard disk drives. Components are often designed to generate as little heat as possible, and computers and operating systems may be designed to reduce power consumption and consequent heating according to workload, but more heat may still be produced than can be removed without attention to cooling...
Which Laptop Is Right For You? ... There are actually four different types of laptops varieties currently available, however, and it is important to know the differences between them, as prices, features and performance can vary greatly between these laptop genres: Ultra light Laptops - Known as sub notbooks or ultra-portables, these laptops usually weigh no more than 4 pounds, and people who travel frequently usually love these types of laptops... Because these laptops weigh very little, they are easy to lug around in a backpack or laptop briefcase.but they are also very small...