Secure Digital (SD) memory cards are very simple to format. There are 3 main options to format the SD cards to the format needed. To successfully format an SD card, the write protection lock on the side of the card must be in the “unlock” position. SD mini and micro SD cards must be used …
Duplex simply means that the communications device enables users to talk to someone in another location and the person in the other location to respond to the user via the same type of device. As an example, when someone makes a telephone call, he/she is engaging in a duplex procedure. The same is true when …
DMA stands for Direct Memory Access, a capability in modern computers that allows peripheral devices to send data to the motherboard’s memory without intervention from the CPU. The DMA controllers are special hardware – now embedded into the chip in modern integrated processors – that manage the data transfers and arbitrate access to the system …
TOSLINK or Toshiba – LINK is a connection standard for digital audio streams. It is a standard which uses fiber optic cables. The important feature of fiber optic cables is that they convert audio signals into light impulses as opposed to electric signals. TOSLINK cables usually transmit their signals as the red LED lights. The …
Network Attached Storage (NAS) is a term used to describe a complete storage system which is designed to be attached to a traditional data network. This differentiates Network Attached Storage devices from SAN's (Storage Area Networks). A SAN is a separate network to which storage devices are attached. In most cases, Network Attached Storage is …
Flash memory is a nonvolatile memory type that is constantly-powered. It has the capability to be reprogrammed or erased in various units of memory referred to as blocks. The technology is based on EEPROM (erasable programmable read-only memory) that is written and erased at the byte level which operates at a much slower rate than …
EPROM or Erasable Programmable Read Only Memory was invented by Engr. Dov Frohman. It is a ROM-type chip that can hold data from 10-20 years. It is different from PROM because it can be programmed more than once. An EPROM programming is erased only through exposure to ultra violet light. The EPROM is configured or …
As technology has advanced over the past few decades, so has computer science. Because of this, there are now many different ways in which information can be transferred from one device to another. Servers, cables, modems, and computers all often work together in order to process and transfer data. A relatively new source of data …
A computer processor is commonly referred to as the CPU, or central processing unit of a computer. The processor is the primary component of a computer designed to move and process data. Computer processors are commonly referred to by the speed that the CPU can process computer instructions per second measured in hertz and are …
USB (Universal Serial Bus) is a hardware specification that allows a connection to be established between a source device and a peripheral device. Most modern electronic devices include at least one built-in USB port and can use USB technology to connect to other devices, such as keyboards, mice, cameras, flash drives, external hard drives, printers, …