According to the trusted sources at NPR, many people seem to drop their cell phones or digital cameras into the toilet.
Don’t just look at it! Quick pull it out!
The sources also suggested an old trick within the industry which is to bury the soaking cell phone or camera in the middle of a large bowl full of rice. Cover the bowl and wait at least 72 hours before trying to see if it worked. The rice should have been able to absorb the unwanted moisture.
Good luck!
Milton Friedman was a monetarist and developed most of the monetarist theory used today. He was a great believer in the power of the free market and much of his work was based around this. Friedman was a professor of economics at Chicago University and produced much of his best-known work during his tenure.
Friedman is known for coming up with two major contributions to the economic policy debate. The first being the Quantity Theory of Money, stated that (M) the amount of money in circulation multiplied by (V) the velocity of circulation of that money is equal to (P) the average price level multiplied by (T) the number of transactions taking place (MV = PT). If the money supply grew faster than the underlying growth rate of output this would lead to inflation. It was in this work that he developed his best known thesis.
His second main contribution was the Expectations-augmented Phillips Curve. The Phillips Curve showed a trade-off between unemployment and inflation. In the 1970s there was a problem with the Phillips Curve,it could not explain unemployment and inflation going up together. Friedman came up with the solution of stagflation occurring, to include the role of expectations in the Phillips Curve, thus giving it the name ‘expectations-augmented’ Phillips Curve.
Milton Friedman will always be associated with monetarism. Monetarism can be defined as the belief that the money supply, or the total amount money in circulation in a given country’s economy at a given time, is the most important economic measure. At the age of 68 received a Nobel in 1976 for his work in monetarism. His work remains highly influential and is still highly controversial.
SCSI is basically a fast communications bus, which allows users to connect multiple devices to their computers. Shugart Associates first introduced SCSI technology in 1981 in conjunction with NCR. It is predominantly used in high-end workstations and servers and offers a variety of speed and connection variations. There are several types of SCSI available such as Ultra, Fast, Wide, and Fast/Wide SCSI. Each type utilizes different variations of bus widths, bus speeds, and throughput capabilities, which ranges from 4 – 160 MBps. The benefits of SCSI are that it is very fast and reliable and allows you to connect eight to sixteen devices on one bus in a daisy chain fashion.
At the heart of SCSI technology is the controller, which is utilized as the interface between all of the devices on the SCSI bus and the computer. The controller is commonly referred to as the host bus adapter. Another main reason SCSI is widely utilized is that it offers the capability of RAID (Redundant Array of Independent Disks) technology. RAID allows the use of a series of independent disk to be connected together and used as one logical disk. This increases performance and provides fault tolerance with the high speeds of SCSI technology.
RAID (Redundant Array of Independent Disks) technology combines multiple inexpensive disk drives into a single array of independent disks. This method of combining multiple drives appears to the computer as one logical storage unit. It is used to obtain performance, capacity, and reliability, which exceed the capability of a single disk.
One of the basic fundamentals of RAID technology is striping and parity. Striping partitions the storage space of each drive into stripes and data is stored sequentially on each disk. In the event of a drive failure only the data on that particular drive needs to be recreated. Parity is the technology used to regenerate the data on the failed drive. There are 6 basic types of RAID architecture: RAID 0 through RAID 5. Each type provides disk fault tolerance with different feature and performance.
RAID 0: Typically defined as a group of striped disk drives without parity for data redundancy. Raid 0 arrays can be configured with large stripes for multi-user-environment or small strips for single user systems.
RAID 1: Simply a pair of disks drives that store duplicate data but appear to the computer as single drive. RAID 1 is also known as mirroring in which all writes going to each drive is the same so all information on each drive is identical.
RAID 2: Stores data by sectoring data across groups of drives with some drives assigned to store ECC information
RAID 3: Stores data by sectoring data across groups of drives leaving one drive dedicated to storing parity information. In the event that one of the drives is damaged or fails the parity information can be used to restore the data on that disk.
RAID 4: RAID 4 is identical to Raid 3 except that large stripes are used so that records can be read from any individual drive in the array except for the parity drive.
RAID 5: Under RAID 5 parity information is written across all drives. Since there is no parity drive all drives containing data and read operations can be overlapped on every drive in the array. RAID 5 combines efficient, fault tolerant data storage with good performance characteristics.
iSCSI is the convergence of the dominant protocol for block storage I/O with IP, the dominant protocol for computer internetworking. The combination of SCSI and IP would allow users to build a storage area network (SAN) utilizing existing Ethernet networks. iSCSI is an end-to-end protocol for transporting storage I/O block data over an IP network. The basic idea of iSCSI is to take advantage of existing IP network to acquire all the benefits of Storage Area Networks without the cost of implementing a SAN using Fiber Channel. IP networks are cost effective and they provide security, scalability, interoperability, network management, and storage management.
iSCSI uses the TCP/IP protocol to transport block level SCSI commands and data between client/servers and SAN targets. iSCSI utilizes host bus adapters which take block level data and encapsulate into a TCP/IP packet. The packet is then transported over an Ethernet network to the SAN target where another iSCSI adapter de-encapsulation the packet back to block level data where SCSI commands can be executed. Initially iSCSI was hindered by the fact that the encapsulation of block level data into a TCP/IP packet created a tremendous load on the CPU, which interfered with its ability to perform other operations. To rectify this problem, TOE (TCP/IP Offload Engines) were created to take the TCP/IP processing from the host CPU and completes TCP/IP processing and packet creation on the host bus adapter (iSCSI adapter).
