computer
COMPUTER SOFTWARE
A Computer Software is an organized collection of computer data and instructions i.e. source code and libraries collection store, used to perform operations of a computer. Software is created with programming languages and related utilities like script interpreters, compliers, linkers, editors, debuggers etc. It provides information to the computer hardware to perform the functions it implements. Computer software is loaded into the Random Access Memory (RAM).
The external qualities of software are usefulness, performance, correctness, reliability, robustness, usability, and user documentation etc. The internal qualities include correctness, changeability, reusability etc. Computer software is categorized as: System software & Application software.
System software control, integrate and manage all the hardware components of a computer. It consists of an operating system, disk formatters, file managers, display managers, text editors, networking and device controlled software etc. On the other hand, Application software consists of a single program, software packages that work closely together to accomplish a task, and a software suite having common user interface consisting word processor, spreadsheets, databases etc.
Platform software allows the user to interact with the computer and its peripherals. Application softwares are the independent programs from the operating system and perform specific functions like compilers, databases etc. User-written software includes graphics, animation scripts, spreadsheet templates etc.
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Submitted by admin on Wed, 05/19/2010 - 08:24.LAPTOP COMPUTER – YOUR PERSONAL ASSISTANT
Today, laptop has become vital part of each and every business. Laptop is a small computer that you can easily hold on your lap. It can be used for numerous business functions such as keeping records, immediate communication, wireless networking and many others. You can easily transport it from one place to another.
Laptops are also termed as ‘modern communication equipments.’ There are many different types of laptops in the market cheap laptop, general purpose or gaming laptop and business laptop. The different models of laptop are Lenovo 3000 N100, Lenovo 3000 C100, WinBook A210, Toshiba Satellite L25-S119, HP Compaq Presario V2000Z etc.
Laptops are smaller and faster as compared to the desktop computers but perform the same functions. The laptop technology is changing continuously so you have to keep different things in your mind while purchasing a laptop. The important things include processor speed, RAM size, hard disk space, brand, price and type of processor.
Laptops are high-class notebooks having Wi-Fi connections and tri-mode 802.11a/b/g wireless system. The Sony's VAIO VGN-T350P consists of the world's first 'Built-in Cellular Modem'. Generally small laptops fall under two main categories Ultra-portable notebooks and Thin and Light laptops. You can easily carry your laptop in your briefcase.
Your laptop mainly needs 256MB RAM for Windows XP and Mac OS X. Some latest models offer a storage space of 60 to 100 GIGS and you can also extend the storage space by using external hard drive. Laptops are costlier than desktop computers. Laptops are of great use for those who have traveling jobs. Laptops are meant for your whole life so never compromise with quality. Always choose the best laptop that fulfills your all needs.
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PDAS OR HANDHELD COMPUTERS GUIDE
Handheld computer devices are also termed as Personal Digital Assistant or PDAs, which has become the major requirement of millions of people, throughout the world. A PDA is a handheld device, and a large number of handheld computers are based on blue tooth, wireless and many other technologies, which make them extremely adaptable and helpful. The main advantage of PDA is that it can store a large amount of data in a small box.
This tiny device has the following features: calendar, notepad, an address book and capable of transferring email and downloading other materials through computer. Generally, handheld computers are used for personal information manager (PIM) types of functions comprising maintenance of programs, keeping names and phone numbers, perform uncomplicated computations, taking notes, and, through a modem, transferring e-mail and getting information from the Web.
While purchasing a handheld computer or PDA, you have to keep some important things in mind. The vital things include memory, processor speed, display size and resolution, operating system, card slots, accessories etc. There are mainly two operating systems for PDA: Palm OS or Microsoft Pocket PC.
There are several models and makers of PDA in the market. Always choose the right model that fulfills your needs. Here are some examples of best PDA models: Garmin iQue 3600, Palm Tungsten E, Toshiba Pocket PC e750, Toshiba Pocket PC e335, Sharp Zaurus SL-5600, HP iPaq H5550, Palm n125 and Dell Axim X5.
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Submitted by admin on Mon, 05/17/2010 - 08:26.MAC LAPTOPS – HIGH TECHNOLOGY COMPUTERS
Mac laptop is a Macintosh laptop computer, and this feature a graphical user interface (GUI) that makes use of Windows, icons, and mouse for enhanced performance. All the applications running on a Macintosh PC have identical user interface.
MacBook Pro (MA463LLA) Notebook is the Mac notebook this is reposed on the novel Intel Core Duo. A single chip consists of the two processors makes it a powerful computer. The full-scale iSight camera at the top of MacBook Pro's display provides the video conferencing via iChat, and you don't need any cords to carry around.
MacBook Pro (MA464LLA) Notebook is a specialized notebook computer, which provides excellent performance. It features Intel Core Duo processors and is designed as transportable and strong laptop.
Apple iBook G4 (M9846BA) Mac Notebook is made up of top-quality material, ultra tough polycarbonate plastic. The hard disk drive of the iBook G4 is good enough to store all the digital work. It offers better performance together with Mac OS X. iBook's keyboard is designed to open easily and can also be locked.
Apple iBook (M9848LL/A) Mac laptop is a portable computer with a very fast PowerPC G4 processor. It has Velocity Engine, a slot-loading optical drive, with capabilities of wireless networking. It provides good performance with advanced operating system, Mac OS X v10.3 Panther.
Apple MacBook Pro (MA091LL) is based on a new Intel Core Duo, which means a single chip consist of two processors. It offers Small Cache of 2MB; L2 cache can be shared between the cores. MacBook Pro also provides excellent performance in video editing, 2D and 3D graphics, and music encoding. It has a frontside bus and memory at 667 MHz.
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