Information Technology (SHC 1913)
desktop and laptop
Nurmala binti Abd Samad
Dr. Noorminshah binti A.Iahad
What is Desktop
What is laptop
Comparison between laptop and desktop
Recommended model and reasons
What is Desktop
A desktop computer is a personal computer that is designed to fit conveniently on top of a typical office desk. A desktop computer typically comes in several units that are connected together during installation: (1) the processor, which can be in a microtower or minitower designed to fit under the desk or in a unit that goes on top of the desk, (2) the display monitor, (3) and input devices usually a keyboard and a mouse. Today, almost all desktop computers include a builtin modem, a CDROM drive, a multigigabyte magnetic storage drive, and
sometimes a diskette drive.
What is laptop
A laptop computer, usually called a notebook computer by manufacturers, is a battery or ACpowered personal computer generally smaller than a briefcase that can easily be transported and conveniently used in temporary spaces such as on airplanes, in libraries, temporary offices, and at meetings. A laptop typically weighs less than 5 pounds and is 3 inches or less in thickness. Among the bestknown makers of laptop computers are IBM, Apple, Compaq, Dell, and Toshiba. Laptop computers generally cost more than desktop computers with the same capabilities because they are more difficult to design and manufacture.
Different between laptop and desktop
All types of computers perform similar functions, but the difference is generally that desktop computers have more robust specifications and more computing power for the dollar compared to their more portable laptop cousins. Comfort is another function that is traded away in favor of portability when it comes to laptop computers, which generally have a touchpad that is not as easy to use as the mouse that comes standard with a desktop computer
Memory and Storage
System memory, frequently called main memory or RAM (Random Access Memory), is a type of computer memory that can be accessed randomly. That is, any byte of memory can be accessed without touching the preceding bytes. RAM is the "working memory" storage area within the computer. All data on the computer is stored on the hard drive, but in order for the CPU to work with the data during normal operations, the data the computer uses and works with is read into the working memory, which is the RAM chips. A laptop's memory can make up for some of the reduced performance that comes from a slower processor. Some laptops have cache memory on or very near the CPU, allowing it to access data more quickly. Some also have larger busses, allowing data to move between the processor, motherboard and memory more quickly. Laptops often use smaller memory modules to save space. Memory types used in laptops include:
* Small Outline Dual Inline Memory Module (SODIMM)
* Dual Data Rate Synchronous RAM (DDR SDRAM)
* Single data rate Synchronous RAM (SDRAM)
* Proprietary memory modules
Some laptops have upgradeable memory and feature removable panels for easy access to the memory modules.
Like a desktop, a laptop has an internal hard disk drive, which stores the operating system, applications ...
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