Tag: accountancy

Mainframe computers are specifically designed to support hundreds or thousands of users concurrently for large-scale transaction processing. While supercomputers are faster, they are typically optimized for complex calculations rather than multi-user support.

Modem used to converts digital signals to analog signals. It enables a computer to transmit data.

Value added service is a popular telecommunication industry term for non-core services, all services beyond standard voice calls and fax transmissions. It can be used in any service industry, for services available at little or no cost.

Unit of speed used for super computer is GELOPS. GELOPS comes from word gel/ops.

The digital computer was developed primarily in USA.

Digital computer, any of a class of devices capable of solving problems by processing information in discrete form. It operates on data, including magnitudes, letters, and symbols, that are expressed in binary code—i.e., using only the two digits 0 and 1. John Vincent Atanasoff (October 4, 1903 – June 15, 1995) was an American-Bulgarian physicist and inventor, best known for being credited with inventing the first electronic digital computer. Atanasoff invented the first electronic digital computer in the 1930s at Iowa State College.

digital computer is the most commonly used type of computer and is used to process information with quantities using digits, usually using the binary number system.

All are included in removable media except the following High disk drive.

Removable media is any type of storage device that can be removed from a computer while the system is running. Examples of removable media include CDs, DVDs and Blu-Ray disks, as well as diskettes and USB drives. Removable media makes it easy for a user to move data from one computer to another.

Disk usage (DU) refers to the portion or percentage of computer storage that is currently in use. It contrasts with disk space or capacity, which is the total amount of space that a given disk is capable of storing. Disk usage is often measured in kilobytes (KB), megabytes (MB), gigabytes (GB) and/or terabytes (TB).

An external hard drive is a portable storage device that can be attached to a computer through a USB or FireWire connection, or wirelessly. External hard drives typically have high storage capacities and are often used to back up computers or serve as a network drive.

Asynchronous Transfer Mode header is 5 byte. A telecommunications concept defined by ANSI standards for carriage of a complete range of user traffic, including voice, data, and video signals. Asynchronous Transfer Mode (ATM) in a nutshell, is a switching and multiplexing transmission protocol. It uses a variation of packet switching, that utilizes small and fixed packet sizes, called cells.

A mobile phone that, apart from making calls, has a camera, surfs the net, sends e-mails, play digital music has calendar and many more features is the smart-phone. These smart-phones use Symbian operating system platforms and Windows smart-phone.

A smartphone is a handheld personal computer. It possesses extensive computing capabilities, including high-speed access to the Internet using both Wi-Fi and mobile broadband.

Symbian OS is an operating system designed for smartphones. The operating system enables multitasking and increased memory protection. The Symbian OS is designed for the specific requirements of 2.5G and 3G mobile phones.

In a 4 bit weighted register D/A converter, the register value corresponding to LSB is 32KΩ the register value corresponding to MSB will be 4Ω.

In the weighted resistor type DAC, each digital level is converted into an equivalent analog voltage or current.

DAC converter produces an output current of voltage proportional to digital quantity to its output. In the circuit op-amp is used as current to voltage converter.

Signals can easily be stored and transmitted in digital form; a DAC is used for the signal to be recognized by human senses or non-digital systems.

Intel has disclosed its silicon technology for high definition, large screen TVs. The new technology, code named cayley is based on liquid crystal on silicon (LCOS).

Liquid crystal on silicon is a micro display technology in which liquid crystals are fabricated on a silicon device that contains control electronics. These devices compete with digital light processing (DLP) technology in the projector and pico projector markets. Viewfinders in camera products are another key application area.