what is Power Problems in Computer and in laptop

 Power Problems

 

        Laptop-specific power problems involve the rechargeable batteries and the external AC power adapters that put the portability into laptops.

What Is CompTIA A+ Certification?

CompTIA A+Certification All-in-One Exam Guide

CompTIA A+ All-in-One Exam

 Guide Every profession requires specialized skills. For the most part, if you want to get or keep a job that requires those specialized skills, you need some type of certification or license. If you want a job fixing automobiles, for example, you get the Automotive Service Excellence (ASE) certification. If you want to perform companies’ financial audits, you get your Certified Public Accountant (CPA) certification.Nearly every profession has some criteria that you must meet to show your compe
-
tence and ability to perform at a certain level. Although the way this works varies widely
from one profession to another, all of them will at some point make you take an exam
or series of exams. Passing these exams proves that you have the necessary skills to
work at a certain level in your profession, whether you’re an aspiring plumber, teacher,
barber, or lawyer.
If you successfully pass these exams, the organization that administers those exams
grants you certification. You receive some piece of paper or pin or membership card
that you can show to potential clients or employers. This certification gives those clients
or employers a level of confidence that you can do what you say you can do. Without
this certification, either you will not find suitable work in that profession or no one will
trust you to do the work.
The Importance of CompTIA A+ Certification
Microcomputers were introduced in the late 1970s, and for many years PC technicians
did not have a universally recognized way to show clients or employers that they know
what to do under the hood of a personal computer. Sure, vendor-specific certifications
existed, but the only way to get them was to get a job at an authorized warranty or
repair facility first and then get the certification. Not that there’s anything wrong with
vendor-specific training; it’s just that no single manufacturer has taken enough market
share to make IBM training, for example, something that works for any job. (Then there
is always that little detail of getting the job first before you can be certified....)
The software/networking side of our business has not suffered from the same lack of
certifications. Due to the dominance of certain companies at one time or another (for
example, Microsoft and Cisco), the vendor-specific certifications have provided a great
way to get and keep a job. For example, Microsoft’s
Microsoft Certified Systems Engineer
(MCSE) and Cisco’s Cisco Certified Internetwork Expert (CCIE) have opened the doors for many.
But what about the person who runs around all day repairing printers, repartition-ing hard drives, upgrading device drivers, and assembling systems? What about the
PC hobbyists who want to be paid for their skills? What about the folks who, because
they had the audacity to show that they knew the difference between CMOS and a
command prompt, find themselves with a new title such as PC Support Technician or
Electronic Services Specialist? On the other hand, how about the worst title of them all:
“The Person Who Doesn’t Get a Nickel Extra but Who Fixes the Computers?”

What Is CompTIA A+ Certification?

CompTIA A+ certification is an industry-wide, vendor-neutral certification program developed and sponsored by the Computing Technology Industry Association (CompTIA). The
CompTIA A+ certification shows that you have a basic competence in supporting microcomputers. You achieve this certification by taking two computer-based, multiple-choice examinations. The tests cover what technicians should know after nine months of full-time PC support experience. CompTIA A+ certification enjoys wide recognition throughout the computer industry. To date, more than 800,000 technicians have become CompTIA A+ certified, making it the most popular of all IT certifications.

About the CD-ROM

About the CD-ROM

Can you Known about C-D ROM ?/

Ram ( Random Access memory)

RAM ( Random Access memory)

Ram (pronounced ramm) stand for Random Access memory

RAM is the most common type of memory found in computers and other devices, such as printers

The primary function of Ram provide a temporary storage.
Place for information about devices and application.Ram chip is "VOLATILE" meaning without power can be store data.


Random access memory (RAM) is the best known form of computer memory. RAM is considered "random access" because you can access any memory cell directly if you know the row and column that intersect at that cell.

memory chip is an integrated circuit (IC) made of millions of transistors and capacitors. In the most common form of computer memory, dynamic random access memory (DRAM), a transistor and a capacitor are paired to create a memory cell, which represents a single bit of data. The capacitor holds the bit of information -- a 0 or a 1 (see How Bits and Bytes Work for information on bits)

 
Single In-line Pin Package (SIPP)
Single In-line Memory Module (SIMM)
Dual In-line Memory Module (DIMM)
Rambus In-line Memory Module (RIMM)

DRAM  DRAM (pronounced dee-ram) to distinguish it from static RAM (SRAM). Static RAM is faster and less volatile than dynamic RAM, but it requires more power and is more expensive.
DRAM connectivity on DIPP (DUAL IN LINE PACKAGE) use 8086 to 8088,and speed is 16kb to 256kb.

EDO (Extended Data Out RAM) connectivity on SIMM (Single In-line Memory Module).EDO Ram use in 286 to p1..
their are two type of edo ram
1:contain 1 to 30 pins and 4 chip maximum cache 2MB
2:contain 1 to 72 pins and 8 chip maximum cache 8MB.

EDO (Extended Data Out RAM) connectivity on SIMM (Single In-line Memory Module).EDO Ram use in 286 to p1..
their are two type of edo ram
1:conntain 1 to 30 pins and 4 chip maximum cache 2MB
2:conntain 1 to 72 pins and 8 chip maximum cache 8MB.

Synchronous dynamic random access memory (SDRAM)

Synchronous dynamic random access memory (SDRAM) is dynamic random access memory (DRAM) that
SD RAM (Synchronous dynamic random access memory) connectivity on DIMM(DUAL IN LINE MEMMORY MODULE) use in p2 to p3.Contain 168 pins and clip holding.

is synchronized with the system bus.






RD ram (ROMBUS DYNAMIC)
only use in p4 starting, 800 bus speed 1.66ghz.RD-RAM connectivity on RIMM (Rambus in-line memory module).it connect on pair from that's why it is remove,it not connect in single form.

Double data rate synchronous dynamic random-access memory (DDR SDRAM)
use complete in p4 233to 33mhz contain 1 to 184  pin and having cut on starting 512mb to 2gb.

DDR2
1gb to 4gb 333 to 8000 bus speed use in Dual core and Quad core .it contain 1 to 248 pins and cut at center(mid Cut).


DDR3

433 to 1.6ghz use in core i2 ,i5 and i7.it contain 1 to 204 pins and at end cut(3rd quarter cut)



 

Network troubleshooting tools are a necessity for every network administrator

  (Networking-troubleshooting SOFT TOOLS.)

Why Networking-troubleshooting happening?

Network Troubleshooting TOOLS, Are a Necessity For Every Network Administrator

 PING Commend

• The most commonly used network tool is the ping utility this utility is used to provide a basic connectivity test between the requesting host and a destination host. This is done by using the Internet Control-Message Protocol (I.C.M.P) , which has the ability to send an echo packet to a destination host and a mechanism to listen for a response from this host. Simply stated if the requesting host receives a response from the destination host this host is reachable, this utilities is commonly used to provide a basic pictures of where a specific networking problem may exist for example, "if an Internet connection is down at an offices.The ping utilities can be used to figures out whether the problems exists within the office or within the network of the Internet provider."

FREE open source tools for Network ADMINS: DIG

• D.N.S Problems Plague us All, and they are easily Overlooked when Troubleshooting.So you need a reliable tools that provides Detailed Information about,How users D.N.S Queries are being resolved. Why not use the tool made by the Internet Systems Consortium.The same group that produces the BIND DNS server software running the majority of D.N.S servers worldwide?

Tracert/trace-route

• Typically once the ping utility (to Ping Router) has been used to Determine Basic connectivity.The Tracery/trace-route utility which can used to Determine more specific Information about the Path to the destinations host Including the routes. The packets takes and the |Response time of these Intermediate hosts, the tracery utility & trace-route Utilities perform the same functions but operate on differents operating systems.

I.P config/if config

• 1 of the most important things that must be Completed when, "Troubleshooting a Networking issue is to find out the specific I.P configuration of the variously affected hosts, some-times this informations is Already known when Addressing is Configured statically, but when a Dynamic Addressing Method is used, The I.P Address (M.A.C Address) of each host can potentially change often."

Route

The last of the Tools covered in this article is the Route Utility, this Utility is used to display the current status of the Routing Table on a Host. While the use of the route utility is limited in common Situations where the host only has a single I.P address with a (single Gateway or default -gateway), it's vital in other Situations where multiple I.P address and (Multiple Gateways) are available

Wireless Device.INFRARED (I.R.D.A)

Wireless Device

Wireless(Infrared) (I.R.D.A) ...What is Wireless and how it work  ??

 INFRARED (I.R.D.A)

Wireless Devices is type of P.A.N (Personal Area Network)

• I.R.D.A data output up to 4mbps
• I.R.D.A security (none)
• I.R.D.A communication (Point to Point)
• I.R.D.A length/Device (up to 15 meter)
• Hardware connectivity P.C.I/U.S.B
• Connectivity between two nearest devices
• Watch this video and know about wireless

Wireless (infrared) (IRDA) part 2


Wireless part 3 free video Free video tutorial

Wireless part 4

Networking concepts..Microsoft Training

 Networking concepts

Microsoft Training

Their are 4 types of network.

PAN (Personal Area Network)

LAN (Local Area Network)

MAN (Metropolitan Area Network)

WAN (Wide Area Network)

PAN

Two Nearest devices Connectivity Called PAN.

Infrared and Bluetooth 

IRDA(infrared )

Wireless Devices

IRDA data output up to 4meter
IRDA Secuirty (no)
IRDA communication (point to Point)
IRDA Hardware connectivity PCI/USB

Bluetooth  

Wireless Devices

B.T are Three types Class A 4mbps,Class B 10 Mbps and Class C 30Mbps
B.T Security (yes)
B.T Communicate * (star)
B.T Hardware Connectivity Built-en/USB

 

 

WWE Jhon Cena vs Roman Reigns..WWE 2K14 PC FULL Gam

A WWE 2K 15 PS 4 Hd Game the one of the most popular game and having 3d view and all superstar are in it... The match between  Jhon Cena vs Roman Reigns..

WWE games are ruing through all over world and its about entertainment...Play and enjoy the WWE game in your p.c emulator or play station and in xbox ...the high graphic game   include new super star and new version..

WWE 2K14 PC FULL Game is a professional wrestling video game developed by Yuke’s & Visual Concepts and published by 2K Sports for the PlayStation 3 and Xbox 360 but recently was emulated for PC Windows. It is the first game published by 2K Sports since Take-Two gained the license from THQ in a bankruptcy filing .

Minimum requirement space is 8.5 g.b  

The Game also has a new mode that is focused on The Undertaker called “The Streak”. The game pays homage to The Undertaker's undefeated 21-0 WrestleMania winning streak. In the mode, the player has the option to defend the streak as the Undertaker, battling wave after wave of opponent. However, the player also has the ability to attempt to break it, playing as all superstars who faced the Undertaker at WrestleMania. In attempting to beat the Undertaker, however, the difficulty is amplified to a level much higher than any point available in any other mode of any WWE wrestling video game, as well as special abilities such as the ability to sometimes chokeslam the player if grappled at the head, or the one-time ability to appear behind the player with a finisher stored







Some supper star names are

Triple H 
Bret Hart and Shawn Michaels  

Randy Orton and Edge.[13]
Brock Lesnar.[14]
Daniel Bryan
Legends of Wrestlemania
Hulk Hogan a
Edge.[13]
John Cena  

9:11 WWE 2K15 PS4 HD Gameplay TLC Match: John Cena vs Roman Reigns

Add caption

 

Configure Roaming Profile on Windows Server 2008

Configure Roaming Profile on Windows Server 2008 ... D.N.S zone
Instal D.N.S (domain Name System) in your Network Environment..Mange it easy

See video and known about how it work

Configuring Roaming Profiles on Windows Server...