Mobile phones History (Timeline)

 Cellphones are playing a vital role in our life.With the time more intersting cells are been built .The history of cellphones is also interesting .Lets have a look.


Date                                                      Event

1921	The first car-to-car radios are used The Detroit Police Department began using mobile radios in their police cars. They used them to talk between cars, but it didn't work very well.

Frequently used terms

TERMS	DEFINITION
Accumulator	They are the special purpose registers in CPU,that have a predefine functions. They are used to carry out special tasks like storing an intermediate value in an calculation
APN (Access Point Name )	APN is the name (web address) of an access point for GPRS/EDGE/UMTS data connection. Usually wireless carriers provide the APN to their end users.
Architecture 32 or 64 bit	32-bit hardware and software is often referred to as x86 or x86-32. 64-bit hardware and software is often referred to as x64 or x86-64. It is the ability of a CPU to process the data.This implies a 32 bit can process 32 bits of data at a time and 64 will be processing 64 bit at the same moment. ^64 bit is faster than 32 but it consumes more RAM
ASU(Active Set update)	The Active Set Update is a signalling message used in handover procedures of UMTS and CDMA mobile telephony standards
ASU(Arbiratory Signal Unit)	It tells strength of the signal field at a point .It is same as dbm but calculate the signal on more linear scale. It ranges differently for different networks GSM-0.31 - 99 UMTS-5.91 and 255 LTE-(-10)-140
BETA	Beta is the stage in a software's development when the developer believes the software to be complete but real-world testing is still required.In this stage,the software is tested for crashes ,bugs,errors etc.The developer studies the user response and act on users feedback and further tries to make the product better and more compatible

4 ways to improve computer speed

Sometimes the computer is old, sometimes it has too much data stored on it and sometimes it is too busy handling too many different processes.Slow computers not only irritate their users, they also get in the way of business and productivity. The causes of a slow computer can be many.If you have a slow computer, you can improve its speed with some simple fixes

 

Clean It Out: This one is pretty straightforward – often computers run slowly because they’re bogged down storing tons of extra data like temporary media files,junk files.so try to delete them either using a good temporary file remover softs or by by deleting manually.