Notebook Laptop PC Mobile Glossary
Computer Cooling
Computer cooling is the process of removing heat from computer components. A computer system's
components produce large amounts of heat during operation, including integrated circuits such as
CPUs, chipset and graphics cards, Dynamic Ram Random-access memory (DRAM), along with hard
drives and Main Boards. This heat must be dissipated in order to keep these components within their
safe operating temperatures, and both manufacturing methods and additional parts are used to keep
the heat at a safe level. This is done mainly using heat sinks to increase the surface area which
dissipates heat, themal interface, phase change compunds to improve heatsink performance, cooling
fans to speed up the exchange of air heated by the computer parts for cooler ambient air, and in some
cases softcooling, the throttling of computer parts in order to decrease heat generation.
RAM cooling : Does anybody use a heatsink for their RAM? DRMA Cooling is just as crucial as
overall cooling of your Desktop or Laptop Computer. Heatsinks commonly called heat spreaders
made out of pure copper are used to transfer the heat from the chips on to the heat spreaders.
Overheated parts generally exhibit a shorter maximum life-span and may give sporadic problems
resulting in system freezes or crashes.
Causes of heat build up
The amount of heat generated by an integrated circuit (e.g., a CPU or GPU), the prime cause of heat
build up in modern computers, is a function of the efficiency of its design, the technology used in its
construction and the frequency and voltage at which it operates.
The dust on the laptop CPU heat sink after three years of use has made the laptop unusable due to
frequent thermal shutdowns. >> Click Here. In operation, the temperature levels of a computer's
components will rise until the temperature gradient between the computer parts and their surroundings
is such that the rate at which heat is lost to the surroundings is equal to the rate at which heat is being
produced by the electronic component, and thus the temperature of the component reaches
equilibrium.
For reliable operation, the equilibrium temperature must be sufficiently low for the structure of the
computer's circuits to survive.
Additionally, the normal operation of cooling methods can be hindered by other causes, such as:
Dust acting as a thermal insulator and impeding airflow, thereby reducing heat sink and fan
performance. Poor airflow including turbulence due to friction against impeding components, or
improper orientation of fans, can reduce the amount of air flowing through a case and even create
localised whirlpools of hot air in the case. Poor heat transfer due to a lack or poor application of
thermal compounds.
Laptop PC
A laptop (also called notebook PC, or a mobile PC) is a portable computer that is small enough
to be easily transported so users have the freedom and versatility to work, learn, share, and create
anywhere, at anytime. Laptops are powered by a rechargeable battery and/or a power line that
can be plugged into an electrical wall outlet. Laptops also come with a built- in flat screen
monitor, a keyboard and a modem so users can access the Internet and other networks.
Laptop Cooler
A laptop/notebook cooler,cooler pad or chill mat is an accessory for laptop computers that helps
reduce their operating temperature. Normally used when the laptop's fan device is unable to
sufficiently cool the laptop, a cooling pad may house its own fans (usually 2 or 3) and rests beneath the
laptop. Though many cooler pads support the use of a power adapter, they typically run on power
drawn through one of the laptop's USB ports. Many cooler pads therefore compensate with a built-in
USB hub. Other advanced features include card readers for various forms of media such as keydrives,
Memory Sticks and 2.5" Laptop hard disk drives.
Some of these "powered" coolers are designed to draw heat from the underside of the computer;
others work in the opposite way by blowing cool air towards the machine. The fan speed is adjusted
manually or automatically on certain models and on others stays at a fixed speed.
The contribution of heat from the energy requirement of the cooler is very minimal impact as USB
ports are limited to 2.5 watts of output power, therefore the cooling effect is dominant.
Studies conducted by California Polytechnic University show that heat build-up in notebooks are
reduced by 15 to 20 percent, when a laptop is situated at an angle compared to a laptop in a
horizontal position. Free air cooling which is a passive method and requires no additional power has
been proven as an effective method of laptop cooling. Many coolers that utilise this passive method
are also available. However active Laptop Coolers with fans specially in the exhaust type method will
not oly keep your Notebbok PC clean inside but also provide you with far greater optimal high
performance cooling capability.
There is a different type of laptop cooler that does not use fan, created by ThermaPAK, which uses a
crystalline compound to cool laptops.
Laptop Cooling
Laptop computing, Laptops are typically made to rest on a solid surface. Unfortunately a flat surface is
the least desirable angle to dissipate heat, lower temperatures are achieved by a chimney effect when
a laptop is set at an angle from horizontal[citation needed]. It is important to note that laptops are
neither designed for nor should they be used on surfaces or in spaces which impede the free flow of
air (such as carpet or bed linens), as heat damage and/or thermal shutdown/slow-down may occur.
Laptop Cooling Damge Damage prevention!
Laptop stands, Notebook cooling pads, and Laptop Coolers are devices accessories which, besides
raising the Laptops screen to another height, are also meant to reduce airflow restrictions. Thus highly
improving heat disapation while ensuring the stability and logeviety of your Laptop PC.
Mobile Intel® Pentium® 4 Processor-M
The “M” in Mobile Intel® Pentium® 4 Processor-M indicates that the processor was specifically
designed for use in a laptop. It includes low power technologies -- not included in the desktop
version -- that help extend battery life. When purchasing a laptop, consumers should look for the
“M” for outstanding performance and enhanced battery life for on-the-go computing.
Processor
Also known as the central processing unit (CPU), the processor is the brain of the computer – it’s
the engine for the software that tells your computer what to do. The power of a processor is
measured by the megahertz (MHz) or gigahertz (GHz) number. The higher the “hertz” number,
the faster the processor. With the introduction of the Mobile Intel® Pentium 4 Processor–M,
consumers can get mobile PCs at speeds up to 1.8 GHz, or 1800 MHz, the fastest speed for
laptops today.
Hard Drive
The hard drive is your laptop’s “filing cabinet.” It stores all of your software programs, as well
as any new document or file that is created. Today, a hard drive’s storage is measured in
gigabytes (that’s billions of bytes – one byte of data can represent a letter or number).
Random Access Memory (RAM)
RAM is a computer’s main source of “active” or “temporary” memory. With more RAM, you
will be able to run more complex software programs or multiple programs at once. RAM is
measured in megabytes.
Spindle
A spindle is actually the shaft that rotates in the middle of a disk drive. Today, laptops are
described by the number of drives and, therefore, spindles they can support. For instance, a
three-spindle laptop PC houses three drives – one for the hard disk, one for floppy disks and one
for CD-ROMs and/or DVDs.
Cache
High-speed memory is located between the CPU and the main memory. Cache memory is
designed to supply the processor with the most frequently requested data. Storing data here
speeds up the operation of the computer. When an item is requested, the computer first checks
the internal cache (built-on the processor), then the external cache (built-on the motherboard)
and, finally, the hard disk.
Deeper Sleep Alert State
Deeper Sleep is an Intel power management technology. It helps to deliver longer battery life by
minimizing the power consumption of the processor during brief periods of inactivity by the user
– including micro-seconds between keystrokes.
Enhanced Intel® SpeedStep™ Technology
Enhanced Intel® SpeedStep™ technology is supported in both the Mobile Intel® Pentium® III
Processor–M and the Mobile Intel Pentium 4 Processor-M. The technology is smart enough to
know how much performance you need to run a specific application. When maximum
performance is required, the processor runs at the highest speed. When maximum performance is
not needed, the processor speed and power is reduced. This reduction in power helps to extend
battery life. For the consumer, this means the ability to watch a DVD movie on a long flight or
work for hours on a research paper while sitting in the campus quad.
Docking Station
A docking station is the base that laptop PCs can be plugged into when at a fixed location. Many
consumers leave the docking station at home, in the office or in the dorm and slip the laptop PC
into the docking station when they finish traveling. This allows users to attach their laptop to a
full size keyboard, external mouse, a large monitor, and other peripherals.
Peripheral
A peripheral is any device that can be hooked up to your computer. Some examples are a printer,
scanner, digital camera or a digital music player.
Finger Pad Mouse
Small rectangle located in front of a laptop's keyboard that allows you to glide your fingertip
over the surface to control your mouse pointer/cursor.
Finger Tip Mouse
Tiny, foam/rubber- like mouse device embedded in the center of a keyboard (looks like an eraser
on the top of a pencil) that you move with your finger.
CD-R/RW Drive
Translation: Compact Disc Recordable or Rewritable. A CD-R/RW drive can record data,
images or music files onto blank discs. With recordable discs, files can only be recorded once
and cannot be changed. With rewritable discs, files can be recorded, deleted and re-recorded.
Most discs created with a CD-R/RW drive can be played back on the laptop or on other
entertainment devices such as the CD or DVD player.
DVD-R/RW Drive
DVD stands for “digital video disc.” The recordable and rewritable concept is the same as with a
CD-R/RW drive, but in addition to recording photos and music files onto blank discs, DVDR/
RW drives can also record video or movie files. DVD discs have a greater capacity for storage
than CD discs.
“Burn”
“Burn” is slang for record. Laptops that are equipped with CD-R/RW or DVD-R/RW drives
allow users to record images, music or video files onto blank discs for playback or back-up
Storage.
Universal Serial Bus
The Universal Serial Bus, or USB, is the standardized high-speed connection technology for
most PC peripherals today. The USB allows the use of one common connector to link various
types of products (such as digital cameras, audio players and PDAs) into one plug. Most laptop
PCs come with two USB connections.
IEEE 1394 Connection
IEEE 1394 is a high-speed external port that is used to connect computer peripherals such as a
digital camera to the laptop. This allows budding cinematographers to quickly and easily transfer
their footage from their digital video camera to the laptop for editing. (IEEE 1394 is also know
as Firewire, iLink*, or simply 1394).
Bluetooth* Wireless Technology
Bluetooth* wireless technology is a short-range (~ 10 meters) cable replacement technology that
allows users to make wireless and instant connections between various communication devices,
such as laptops, cell phones, printers, camcorders, mice headsets and keyboards, as well as
connect to the Internet. This means you can check e-mail and access the Internet on your laptop
via your mobile phone; share data files with colleagues at a meeting without using wires; and
automatically transfer phone numbers that are housed in your laptop over to your cell phone.
Bluetooth is a complementary technology to 802.11.
IEEE 802.11 Wireless Technology
IEEE 802.11 replaces your wired Ethernet connection, using radio waves instead of cables to
establish network between computers or connect to the Internet. 802.11 networks can be set-up
within the home so consumers can share files, printers and Internet access from all rooms in the
home, without cables. The same scenario applies for businesses; employees can have continuous,
cable-free access to the network, e- mail and the Internet, even while moving through the
workplace. Currently, IEEE has specified two wireless LAN standards: 802.11a and 802.11b.
GPRS
General Packet Radio Service (GPRS) refers to the next generation cellular wireless services.
GPRS enables networks to offer 'always-on', higher capacity Internet-based content and
packetbased
data services. This enables services such as color Internet browsing, e- mail on the move,
powerful visual communications, multimedia messages and location-based services.
Broadband
Broadband is a term that describes a network where several data streams can be submitted
simultaneously at high speeds. More recently, broadband has come to describe high-speed data
transmission, such as cable modem, ISDN (Integrated Services Digital Network), and DSL
(Digital Subscriber Line).
“Hot Spot”
“Hot spots” are locations where consumers can log onto the Internet via a wireless access point.
All that’s needed is a Wi-Fi networking card, which is currently sold as an add-on option with
many laptops. Some laptop PCs sold today come with this capability built right in. Additionally,
many airports, hotels, even coffee bars are now equipped with this technology.
PAN
Short for personal area network, a PAN is how you can wirelessly connect your personal
communication devices together using the Bluetooth* Wireless technology. Devices include
your laptop, cell phone, printer, PDA, etc.
LAN
Short for local area network, a LAN is a group of computers and associated devices that share a
common communications line to share resources, such as a high-speed link to the Internet and
printers. A LAN may also tie computers to a larger system called a “server” designed to manage
resource and connectivity allocation. A LAN may serve as few as two or three users in a home
network, or many thousand users in a local office network.
WAN
Short for a wide area network, a WAN is a large network in which computers are connected to
each other over a long distance, using telephone lines and satellite communications. For
example, a global company could have a WAN network to connect all of the offices in the
different cities and countries, while each office individual office operates from its own LAN.
Proprietary rights credit due:
Intel, Pentium and Intel Enhanced SpeedStep Technology are trademarks or registered trademarks of
Intel Corporation or its subsidiaries in the United States and other countries. *Other names and brands
may be claimed as the property of others. Bluetooth is a trademark owned by its proprietor and used
by Intel Corporation under license.
**System capabilities described here for Mobile Intel Pentium 4 Processor-M-based mobile PCs,
such as wireless connectivity, digital music playing, CD/DVD creation and playback, require
additional hardware, software or services that may need to be purchased and installed separately.
This glossary pertains to Noteboke PC, Laptop PC computing terminology and will help you
understand the following terms having to do with mobile computing. By Laptop Toys.
Laptop PC Mobile Glossay. Understanding Mobile Computing...
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