Tips on How to buy new or used Laptops, Notebooks!
CPU: also known as microprocessor, Its speed is measured in MHz. It's also important to consider the type of
processor, for example, a 800MHz Intel Celeron microprocessor may be slower than a 800MHz Intel Pentium 4 microprocessor.
Memory:RAM or Random Access Memory is the computer's work space. More of it lets the computer work faster and lets you run more programs at the same time.
Cache: Cache memory, A processor can access items stored in cache very quickly, more quickly than in any other form of work space. The processor uses the cache to store the most frequently requested instructions and data. The larger the cache, the faster the notebook will run as a whole.
There are two forms of cache: internal cache (also called Level 1, L1, or CPU cache), and external cache (also called Level 2, L2, or secondary cache). More cache is always better.
Hard Disk: The "hard disk" or "hard drive" is where the operating system, all other software programs, and all your own information get stored.
Screen: The screen or display, or Liquid Crystal Display, or LCD, of a notebook, is an important element of the notebook. The size of the screen, the type, and the resolution, can all be important. Most people focus on the size of the screen, since that is the most obvious element. If you are a graphic designer or an avid game-player, you might want to carefully check out the type and resolution as well.
Resolution: measures the number of dots on the screen; a higher resolution means more dots. Every notebook screen supports at least a resolution of 640x480. Newer notebooks can also support higher resolutions, such as 800x600 (also called VGA) or 1024x768 (also called SuperVGA or SVGA).
Batteries: Notebook batteries are either Lithium Ion (Li-Ion) or Nickel Metal Hydride (NIMH). Lithium batteries are lighter in weight, and have a longer life, than NIMH batteries, but they also cost more. The expected length of time it will take to recharge a fully discharged battery can vary widely. NIMH batteries should initially be charged for 16 hours; lithium batteries need only 6-8 hours at first.
Pointing Device: The pointing device is to a notebook what a mouse is to a desktop. It lets you point, click and drag items, just as a mouse does, but it's compactly built into the notebook. Try out the keyboard and pointing device together to ensure they're comfortable. All pointing devices fall into three types: Stick , Pad and Trackball.
Modem: Notebook modems either come built into the notebook, or it's very common to have to add your own as an external option.
CD-ROM: The CD-ROM drive reads compact disks (CDs) that store music, software, data etc. CD-ROM drives may be built into a notebook, or might be "swappable".
Ports: Notebooks can include many ports, or connections. USB, or Universal Serial Bus, IR, or InfraRed port, S, or Serial port, P, or Parallel port, M port is used to attach an external Monitor, PS2 (For external mouse or keyboard), A is an Audio port, MI (Microphone Input), HO (Headphone Output), SO (Speaker Output), EXP or EXPAN (EXPansion port), FD (external Floppy Disk drive), ET10/100 (a 10 or 100-megabit Ethernet port), SCSI is a Small Computer System Interface port, TV means a Television connection, PCMCI Cards: (modems, Ethernet or other network-connection cards, game cards, software, additional hard disk capacity, or cellular modems).
ZIP or JAZ Drive: Floppies only hold 1.4MB (megabytes). However ZIP disk can store 100MB of data or more, And Jaz disks hold 20 times more data.
