cashnocash In what can be a breather for people waiting outside the ATMs to withdraw cash, here comes a website that can help you locate an ATM with cash in your vicinity. www.cashnocash.com updates real time statistics based on the users' feedback and lets you know which ATM has cash, which has long queues and which has gone cash-dry. Just log in and type in your area code. The website will display which ATM has cash and which doesn't. Since the website updates data based on users' feedback, one can update the status by clicking the ATM venue link and then selecting one of the three options -- cash, long wait and no cash -- to help the website get updated for other users.
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HUB Networks using a Star topology require a central point for the devices to connect. Originally this device was called a concentrator since it consolidated the cable runs from all network devices. The basic form of concentrator is the hub. As shown in Figure; the hub is a hardware device that contains multiple, independent ports that match the cable type of the network. Most common hubs interconnect Category 3 or 5 twisted-pair cable with RJ-45 ends, although Coax BNC and Fiber Optic BNC hubs also exist. The hub is considered the least common denominator in device concentrators. Hubs offer an inexpensive option for transporting data between devices, but hubs don't offer any form of intelligence. Hubs can be active or passive. An active hub strengthens and regenerates the incoming signals before sending the data on to its destination. Passive hubs do nothing with the signal. Ethernet Hubs An Ethernet hub is also called a multiport repeater. A repeater is a
Keyboard Shorcuts (Microsoft Windows) 1. CTRL+C (Copy) 2. CTRL+X (Cut) ...... 3. CTRL+V (Paste) 4. CTRL+Z (Undo) 5. DELETE (Delete) 6. SHIFT+DELETE (Delete the selected item permanently without placing the item in the Recycle Bin) 7. CTRL while dragging an item (Copy the selected item) 8. CTRL+SHIFT while dragging an item (Create a shortcut to the selected item) 9. F2 key (Rename the selected item) 10. CTRL+RIGHT ARROW (Move the insertion point to the beginning of the next word) 11. CTRL+LEFT ARROW (Move the insertion point to the beginning of the previous word) 12. CTRL+DOWN ARROW (Move the insertion point to the beginning of the next paragraph) 13. CTRL+UP ARROW (Move the insertion point to the beginning of the previous paragraph) 14. CTRL+SHIFT with any of the arrow keys (Highlight a block of text) SHIFT with any of the arrow keys (Select more than one item in a window or on the desktop, or select text in a document) 15. CTRL+A (Select all) 16. F
Network Cabling This section may be skipped by those more interested on the software aspects of networking or those learning networking, but all readers should at some time be aware of the terminology used in this section since they are used with regard to cabling. If this section is skipped by those learning networking, it should be read later. This section should be read by those who plan to physically install their own network. Types of Transmission Baseband - Data bits are defined by discrete signal changes. Broadband - Uses analog signals to divide the cable into several channels with each channel at its own frequency. Each channel can only transmit one direction. Physical media Twisted pair - Wire is twisted to minimize crosstalk interference. It may be shielded or unshielded. UTP-Unshielded Twisted Pair. Normally UTP contains 8 wires or 4 pair. 100 meter maximum length. 4-100 Mbps speed. STP-Shielded twisted pai