How to us pen drive as RAM
3D printed prototype electric car from StreetScooter
StreetScooter, a German company known for electric vehicles, have recently designed a prototype of the C16 electric car and made most of the components for the cars exterior using a 3D printer. They used the Stratasys Objet1000 3D Production System to make the front and back panels, along with the door panels, bumpers, wheel arches, side skirts, lamp masks and some of the interior components.
[Image Courtesy of Stratasys]
Many parts of the C16 production version will be made using conventional methods, but 3D printing allowed the prototype of the car to be designed and manufactured cheaper and in less than 12 months. While the car may have parts that have been 3D printed, the company said that the car was able to “perform in strenuous testing environments to the same level as a vehicle made of traditionally manufactured parts.”
[Image Courtesy of Stratasys]
The Objet1000 is the biggest multi-material 3D printer in the world and this was needed to take on a project the size of a car. It allowed StreetScooter to be able to print the parts in ABS, with some parts being up to as much as one meter in length.
[Image Courtesy of Stratasys]
StreetScooter makes a delivery truck in Germany that is used by the postal system there. At the moment they are keeping a lot of the details about the C16 under wraps. However, they did say that the production version of the electric car would weigh around 455kg including the battery. It is said to have a range of 100km minimum and reach a top speed of 100 km/h. The price tag for the C16 is said to be in the region of below 10,000 Euros.
Anyone visiting the EuroMold show over November 25 to 28 will be able to see the prototype for themselves as it will be on show in Frankfurt.
Charge your device using your belt with new wearable tech
When you hear about wearable tech in the news chances are it’s another new smartwatch. However, a young entrepreneur has taken a new approach to wearable tech with the XOO belt: a combination of a classic belt and a portable USB charger.
Designed by serial entrepreneur Piers Ridyard, the belt packs a 2,100 mAh battery, enough to fully charge an empty iPhone 6. Ridyard said that he had the idea years ago, but has been waiting for the flexible lithium polymer battery technology that only became available last June.
“This is for people who are sick of their mobile phones dying,” explained Ridyard, 27. “They don’t like battery cases and they don’t want to lug around a charger. The XOO belt solves the problem of suddenly running out of battery.”
The flexible layers of batteries are weaved into the leather belt which allows the zinc belt buckle, which houses a USB port and a cable, to be thin and not bulky like others on the market. Conveniently, you can charge your device whilst it’s in your pocket thanks to the reach of the cable.
“Existing belt chargers either have huge belt buckles, which looks terrible, or stitch old-style lithium battery chargers into the belt, which is actually dangerous,” says Ridyard, mentioning the risk of cracking a solid lithium-ion battery in that it may explode. The flexible tech used in the XOO is said to be stable even when flexed.
It’s not his first attempt at launching a product on to the market either; he’s the guy behind the Nifty MiniDrive, the external hard drive that fits into the SD slot on an Apple Macbook increasing storage by up to 128 gigabytes. After raising $400,000 on Kickstarter, the hard drive can now be found in Apples stores in various countries.
And again he has turned to crowdsourcing with a campaign on Indiegogo for the XOO where he is seeking to raise $50,000 – and he’s already not far off. The early bird price of $99 has already been scooped up, with the lowest you can pledge to receive one now being $155. If all goes accordingly, the first shipment is set to be in July next year.
How do you enjoy watching your movies?
Most Comfortable Cinemas Ever
Like watching movies or television in bed? Well now you can watch movies on the big screen while laying down too! Here are four really cool theaters from around the world that feature beds instead of chairs. Some of these were sadly one time set ups. The good news is though, that some were not. The Electric Cinema in England offers patrons a choice of armchairs, beds and sofas! Too cool. There is also a theater in Jakarta, Indonesia that offers velvet seating. Beds and armchairs. Check out these cool photos of the most comfortable cinemas around the world. - See more at: http://welldonestuff.com/most-comfortable-cinemas-ever/#sthash.FWHVDoSC.dpuf
promotional event a few years ago in Paris.
Like watching movies or television in bed? Well now you can watch movies on the big screen while laying down too! Here are four really cool theaters from around the world that feature beds instead of chairs. Some of these were sadly one time set ups. The good news is though, that some were not. The Electric Cinema in England offers patrons a choice of armchairs, beds and sofas! Too cool. There is also a theater in Jakarta, Indonesia that offers velvet seating. Beds and armchairs. Check out these cool photos of the most comfortable cinemas around the world. - See more at: http://welldonestuff.com/most-comfortable-cinemas-ever/#sthash.FWHVDoSC.dpuf
The Electric Cinema in England
10TB SSD available cheaper thanks to NAND technology
You will soon be able to put huge amounts of memory into your computer thanks to NAND technology developed by Intel and Toshiba. The companies have revealed 3D NAND memory chips which are stacked in layers, which mean they can hold more data than the chips with single planes that are out now.
Toshiba have revealed that they are working on the first 48 layer NAND chip in the world with a 16GB chip that boosts reliability and speed. At the moment they are giving engineering samples to manufacturers but the general public will have to wait for a while longer to get their hands on them.
Intel along with their partner Micron also revealed they are making their own version of a 32 layer NAND chip and predict that it should be available in SSD format in about a year. They are working on bigger NAND memory as 32GB chips are already available and they will soon have a 48GB version available. It will be possible to make M.2 PCle SSD at gum stick size and up to 3.5TB along with 10TB SSDs at just 2.5 inches. This would put them on a level with many of the latest hard drives on the market.
Samsung have been using 3D NAND technology for a while now and so they can expect competition from Toshiba along with Intel and Micron. The good news for consumers is that we can expect higher capacity and cheaper NAND SSDs in the not too distant future.
New Networking Session
New Networking Session
The New-Networking Session is now ready for share at Computer-Networking Blog..
Visitors from all over the World are Warmly Wel-come to Visit and Share Networking Information With Every 1.....
Here Information Will Started From Basics and then move toward to Advance Level.
Visitors from all over the World are Warmly Wel-come to Visit and Share Networking Information With Every 1.....
Here Information Will Started From Basics and then move toward to Advance Level.
So be a part of Computer-Networking Blog and Enjoy the Whole Knowledge at your Own Pace.
Network Topologies
Network Topologies
A network topology is the physical layout of computers, cables, and other
components on a network.
There are a number of different network topologies, and a network may
be built using multiple topologies.
The different types of network layouts are Bus topology, Star
topology, Mesh topology, Ring topology, Hybrid topology and Wireless
topology.
Star Topology
Star Topology
A star topology is designed with each node (like workstations, printers
, laptops servers etc.,) connected directly to a central network hub/switch. Each
workstation has a cable that goes from the network card to
network hub or switch.
Advantages of Star Topology
• Easy to install and wire.
• No disruptions to the network then connecting or removing devices.
• Easy to detect faults and to remove parts.
Disadvantages of Star Topology
• Requires more cable length than a linear topology.
• If the hub fails, nodes attached are disabled.
• More expensive than linear bus topologies because of the cost of the
devices.
Common Network Cable types
Common Network Cable types
Cables are commonly used to carry communication signals within LAN. There are three common types of cable media that can be used to connect devices to a network and they are coaxial cable, twisted-pair cable, and fiber-optic cable.
Coaxial cable
Coaxial cable
Coaxial cable looks similar to the cable used to carry TV signal. A solid-core copper wire runs down the middle of the cable. Around that solid-core copper wire is a layer of insulation, and covering that insulation is braided wire and metal foil, which shields against electromagnetic interference. A final layer of insulation covers the braided wire.
There are two types of coaxial cabling: thinnet and thicknet. Thinnet is a flexible coaxial cable about ¼ inch thick. Thinnet is used for short-distance. Thinnet connects directly to a workstation’s network adapter card using a British Naval Connector (BNC). The maximum length of thinnet is 185 meters. Thicknet coaxial is thicker cable than thinnet. Thicknet cable is about ½ inch thick and can support data transfer over longer distances than thinnet. Thicknet has a maximum cable length of 500 meters and usually is used as a backbone to connect several smaller thinnet-based networks.
The bandwidth for coaxial cable is 10 mbps (mega bits per second).
Twisted Pair Cable
Twisted-pair cable is the most common type of cabling you can see in todays LAN networks. A pair of wires forms a circuit that can transmit data. The pairs are twisted to provide protection against crosstalk, the noise generated by adjacent pairs. When a wire is carrying a current, the current creates a magnetic field around the wire. This field can interfere with signals on nearby wires. To eliminate this, pairs of wires carry signals in opposite directions, so that the two magnetic fields also occur in opposite directions and cancel each other out. This process is known as cancellation. Two Types of Twisted Pairs are Shielded Twisted Pair (STP) and Unshielded Twisted Pair (UTP).
Unshielded twisted-pair (UTP) cable is the most common networking media. Unshielded twisted-pair (UTP) consists of four pairs of thin, copper wires covered in color-coded plastic insulation that are twisted together. The wire pairs are then covered with a plastic outer jacket. The connector used on a UTP cable is called a Registered Jack 45 (RJ-45) connector. UTP cables are of small diameter and it doesn’t need grounding. Since there is no shielding for UTP cabling, it relies only on the cancellation to avoid noise.
UTP cabling has different categories. Each category of UTP cabling was designed for a specific type of communication or transfer rate. The most popular categories in use today is 5, 5e and 6, which can reach transfer rates of over 1000 Mbps (1 Gbps).
Optical Fiber Cable
Optical Fiber cables use optical fibers that carry digital data signals in the form of modulated pulses of light. An optical fiber consists of an extremely thin cylinder of glass, called the core, surrounded by a concentric layer of glass, known as the cladding. There are two fibers per cable—one to transmit and one to receive. The core also can be an optical-quality clear plastic, and the cladding can be made up of gel that reflects signals back into the fiber to reduce signal loss.
There are two types of fiber optic cable: Single Mode Fibre (SMF) and Multi Mode Fibre (MMF).
1. Single Mode Fibre (SMF) uses a single ray of light to carry transmission over long distances.
2. Multi Mode Fibre (MMF) uses multiple rays of light simultaneously with each ray of light running at a different reflection angle to carry the transmission over short distances
Network Infrastructure Devices
Network Infrastructure Devices
Hub
Hubs were the common network infrastructure devices used for LAN connectivity but switches are rapidly replacing hubs. Hubs function as the central connection point for LANs. Hubs are designed to work with Twisted pair cabling and normally use RJ45 jack to connect the devices. Network devices (Servers, Workstations, Printers, Scanners etc) are attached to the hub by individual network cables. Hubs usually come in different shapes and different numbers of ports.
When a hub receives a packet of data (an Ethernet frame) at one of its ports from a network device, it transmits (repeats) the packet to all of its ports to all of the other network devices. If two network devices on the same network try to send packets at the same time a collision is said to occur.
Bridges and Switchs
A bridge is a network device that operates at the Data Link layer (Layer 2) of OSI model. There are many different types of bridges and include Transparent bridges, Encapsulation bridges, Source-route bridges. Source-route bridges are for Token Ring network. Bridges allow segmenting a Local Network into multiple segments, thus reducing the network traffic. A bridge performs the segmenting function by examining the Data Link Layer (Layer 2) data packet (Ethernet Frame) and forwarding the packet to other physical segments only if necessary. Both swiches and bridges function using Data Link Layer (Layer 2) addressing system, also known as MAC addresses.
Bridge can connect only a few Networks, LANs or Hosts. A Bridge has comparatively less ports than a Switch. A Switch has usually 24 ports or 48 ports. Brides and Switches are considered to operate at Data Link Layer (Layer 2) of OSI model.
Router
A router is another network infrastructure device that directs packets through the network based on information from Network Layer (Layer 3) of OSI model. A router uses a combination of hardware and software to "route" data from its source to its destination. A router can be configured to route data packets from different network protocols, like TCP/IP, IPX/SPX, and AppleTalk.
Routers segment large networks into logical segments called subnets. The division of the network is based on the Layer 3 addressing system, like IP addresses. If the Network Layer (Layer 3) Data packet (IP Datagram) is addressed to another device on the local subnet, the packet does not cross the router and create a traffic congestion problem in another network. If data is addressed to a computer outside the subnet, the router forwards the data to the addressed network. Thus routing of network data helps conserve network bandwidth.
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