It is sometime necessary to have some windows for working. In case you have linux/unix server it will be easier to use client program such as putty to log in and open another putty if you want to open new windows. But if you are working in front of your computer server, opening two or more terminals will be useful.
normally unix/linux comes up to 6 terminal called tty. you can access terminal by pressing to .
for example if you press then you are opening the default terminal, because you already opened it, it wont show any effect. if you want to open the second terminal (tab/window of shell) press , new terminal (blank screen as usual) will come up and asking you login and password, after you enter login and passwd you will get new terminal or shell windows. for navigate back or open other terminal just change F2 to F3, F4, F5, F6 or F1.
This table shows the maximum bandwidth (the physical layer net bitrate) of common Internet access technologies. For a more detailed list see list of device bandwidths, bit rate progress trends and list of bit rates in multimedia.
56 kbit/s Modem / Dialup
1.5 Mbit/s ADSL Lite
1.544 Mbit/s T1/DS1
10 Mbit/s Ethernet
11 Mbit/s Wireless 802.11b
44.736 Mbit/s T3/DS3
54 Mbit/s Wireless 802.11g
100 Mbit/s Fast Ethernet
155 Mbit/s OC3
600 Mbit/s Wireless 802.11n
622 Mbit/s OC12
1 Gbit/s Gigabit Ethernet
2.5 Gbit/s OC48
9.6 Gbit/s OC192
10 Gbit/s 10 Gigabit Ethernet
100 Gbit/s 100 Gigabit Ethernet
Miscrosoft has announced its newest operating system Windows 8. It also comes with newest features, its main feature is its compatibility to be ported to most all computer architectures. it fully supports touchscreen device and still suitable for most win 7 applications. Metro UI, is its user interface name.
From one article from microsoft i also found some explanation about its new features, here they are :
Fast launching of apps from a tile-based Start screen, which replaces the Windows Start menu with a customizable, scalable full-screen view of apps.
Live tiles with notifications, showing always up-to-date information from your apps.
Fluid, natural switching between running apps.
Convenient ability to snap and resize an app to the side of the screen, so you can really multitask using the capabilities of Windows.
Fully touch-optimized browsing, with all the power of hardware-accelerated Internet Explorer 10.
GPS or Global Positioning System is space-based global navigation satellite system (GNSS). GNSS is used for satellite navigation system with global coverage. GPS provides location and time information in all weather, anywhere on Earh (where there is an obstructed line to four or more GPS satellite). GPS is maintained by United States goverment and available to anyone with GPS receiver.
Other satellite positioning systems available are GLONASS from Rusia, Compass