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Discount on Personal Computers - technical specifications
When you are faced with so many models, brands and different characteristics, it is normal to feel lost.
For a more informed purchase of a complex instrument like the personal computer, just keep in mind what are your needs and most importantly, the characteristics of the PC you want to buy.
First step: identify at what kind of user you belong
- A student (but also travelers) could make a comfortable handset with Wi-Fi, light and handy, which can carry around in power (or train) to study, do research and carry out the tasks of the course.
- An unpretentious private, will offer a desktop computer to keep at home and to navigate on the Internet, send e-mail, use photo editing software or watch DVD.
- A professional will need a PC in his study with a large memory space on your hard drive and greater computing power to manage the work.
- The player needs rather than power and graphics card for high-level experience play up to expectations.
Second step: Evaluate the technical specifications of the PC
- CPU (Central Processing Unit): Determines the speed at which are carried out all PC activity, stability and reliability of the system, as well as energy consumption. The choice of a processor of quality is therefore the starting point. The higher the quality of CPU, the better the quality of the other components and therefore costs. Speed is defined in MHz or GHz, and indicates the amount of work that the computer can do in a second.
I Main: Celeron, Intel economic, slightly slower than the Premium, Premium 4, designed for desktop and perfect for the media, because of its speed (on laptops tend to heat up and consume the battery quickly) AMD Athlon 64, supports the 64-bit platforms and is one of the processors favorite players. - RAM (Random Access Memory): The memory that the computer uses as it works to load programs used by the user. Greater space of RAM, the greater the possibility of retaining data without problems or delays by the computer. It is measured in MB or GB.
- Hard Disk (or hard drive): It is the memory that stores the operating system and all data on your computer and that, unlike RAM, retains this information even after I turn it off the computer. The size is calculated in the UK, the rate of extrapolating data Mbps, megabits per second.
- Video Card: Process and issue all necessary signals to the monitor for viewing images. The size of video memory (in MB) can be forfeited video information without overloading the RAM, thus allowing the computer's performance remains optimal.
- Sound Card: Transform the digital data relating to electromagnetic signals that may sound be sent to a speaker system or received through the use of a microphone. The sound card is not essential to the operation of the PC, but if you use a multimedia best interests, to the sound card quality analog to digital converter and digital to analog is essential. To consider: the sampling frequency and bitrate.
- CD / DVD: Each pc has always been a reader, there were those who the recorder, which can save data to disk, as well as read them. Keep in mind that a CD player does not read DVDs, while a DVD player reads both. The main characteristic is the write speed of your drive, represented by a number followed by x.
- Modem: The most common are ADSL, usually outside and making it possible to take advantage of the high-speed ADSL, although they are gaining the WLAN router, which allows Wi-Fi home network, now supported by every handset and even some desktops.
Additional features or waived
- Wi-Fi for wireless connection (wireless) computer to a local network or the Internet (through the use of a router).
- Bluetooth: Used to exchange information between devices through a Secure radio frequency that works within a few tens of meters. It is used by PDAs, cell phones, laptops, printers, etc..
- USB Ports: Standard connector for communication that allows the connection of various types of peripheral devices to computers, including plug-and-play devices that can be connected and disconnected without rebooting the computer.
Finally, always pay attention to what you are sold! In stores computer you can buy desktop pc without monitor, keyboard and mouse, the right choice if you are already equipped with these devices, but if you must make a full purchase, you should consider whether it is appropriate to buy the parts separately or bet on a ' offering that includes everything.
It is important to consider different options before making your choice.
