Bluetooth is a wireless communication protocol which is used to exchange information or data over short distances, with the help of fixed or mobile devices. Bluetooth wireless technology is integrated into these kinds of electronic devices to enable users to exchange information such as music, videos, and pictures wirelessly. Bluetooth technology was created in 1994 …
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 …
Random-access memory is a type of data storage for computers. Commonly known as the acronym RAM or simply memory, random-access memory details the speed in which data that is stored can be accessed at random. This means that the strength of the RAM determines, at random, how fast a piece of data can be pulled …
A hard disk partition is a defined storage space on a hard drive. Most operating systems allow users to divide a hard disk into multiple partitions, in effect making one physical hard disk into several smaller logical hard disks. Reasons to Use Hard Disk Partitions A user may decide to split a hard disk into …
Paper is usually thought of as a set size. In fact, there are several sizes which are used in printers today that are to our expectations or exceed them. The common sizes are those which are used daily in offices, schools and at home by most people. The Common Letter Size Printer Paper The Letter Size paper …
The Basic Input Output system (BIOS) is a type of software that provides an interface between the hardware components of a computer and its operating system. It is usually stored in a Read Only Memory (ROM) chip. As it is stored in a ROM chip, its contents can never be erased and can be accessed …
A SD card, or Secure Digital card, is a memory card used in portable devices for non-volatile memory storage. The cards are commonly used in tablet computers, cell phones, digital cameras, and GPS devices. The SD standard was first introduced in 1999 as an improvement over MultiMediaCards. The standard for SD cards is maintained by …
In order to understand what a checksum error is, it is important to first learn what a checksum is. A checksum is a redundancy check during a computer’s start up process, which makes sure that the computer’s data is intact and unhampered. The data is scanned and tested for accuracy, either based on how well …
Embedded systems refer to devices, instruments or large engineering structures/systems that are built to handle one or a few pre-established tasks. The computer controlling the whole thing is built into or 'embedded' within the device. Cellphones and personal digital assistants (PDAs) are examples of devices with embedded systems. They both perform a specific number of …
An Integrated Drive Electronics (IDE) drive is a device that meets the Parallel AT Attachment, ATA or AT Attachment Packet Interface, and ATAPI standards. IDE drives include hard drives, floppy drives, and CD/DVD players. IDE drives have a specific type of cable that allows multiple streams of data to be shared between the device and …