Computer Science Fundamentals

Dr. Herman Hollerith is regarded as the father of modern machine data processing. He patented a complete system for processing cards.

A postal number code is a code used by the India Post and the Indian Postal Administration. The code is six digits long in a numeric field.

A keyboard is an input device which allows us to give instructions to the computer.

The CD-TV was intended as a media appliance rather than a personal computer. Commodore announced the CD-TV in the 1990 Consumer Electronics Show in Chicago.

IBM's nickname (Big Blue) is a phrase that may have been originally suggested by IBM's army of uniformly dressed salesmen.

The data is stored on the disc with a laser or stamping machine. Optical discs are most commonly used for storing music and allow a narrower light beam.

Von Neumann's design led eventually to the construction of the ENIAC computer in 1952, which is the first computer of this type to be actually constructed.

Sequential file organizations are efficient ways for the selection of files or loading data from servers with a high degree of file activity.

Apple Inc. is an American multinational corporation headquartered in Cupertino, California that designs, develops and sells consumer electronics, computer software, online services, and personal computers. Its best known hardware products are the Mac line of computers, the iPod media player, the iPhone smart phone, and the iPad tablet computer. It is the company which introduced the personal computer.

The development of the integrated circuit was the hallmark of the third generation of computers.

Terminal tables have permanent database entries for each terminal symbol. In this, data structures used by compiler keep the track of terminal tables of the syntactic analysis.

A floppy disk, also called a diskette, is a disk storage medium composed of a disk of thin and flexible magnetic storage medium.

Music synthesiser is also called electronic sound synthesiser. It is like a machine which electronically generates and modifies sounds, with the use of digital sounds.

When PC content means data is stored in memory, it gets a new address in a proper sequence, which represents a function call to match with its interrupt service initiation process in sequential order.

Ergonomics is the scientific discipline concerned with the understanding of interactions among humans and other elements of a system.

Public domain software means there is no ownership as copyright, trademark or patent. These have been placed in the public domain.

Lexical analysis includes the process of converting the characters into tokens. It is combined with the parser, which analyses the syntax of programming languages.

We can calculate it by using method below
Total capacity = (aerial density)*(total surface area)
Aerial density = 60 * 800 = 48000 bits per inch
Total surface area = 2 * pi * r * h = 2 * pi * 5 * 5 = 50 * pi
Total capacity = (50 * 3.14 * 48000)/8 = 942000 bytes

Bead data structures are those which have instances of the same data structure in several fields of the data structures.

Euronet is a global leader in processing secure electronic financial and payment transactions, which is sponsored by EEC.

These can display upto 64 hardware sprites on the screen and 16 per scanline.

Buddy Systems are used for splitting memory into different parts which is why it is used for implementing a memory management system.

Mind-ware packages are used in networking, maintenance and implementation.

Turnkey Computer System is the premier provider of accounting and management solutions to the feed yard industry and also has been customized for a particular application.

Access arm moves the read/write head across the surface of the disk of a phonograph.

Swapping is a technique, which enables the computer to execute programs and manipulate data files larger than the main memory.

Stack represents LIFO (last in first out). It is a common data structure, which maintains them into particular order but not in the same process.

Magnetic disks have the highest access time among others, which is 50 to 150 nanoseconds.

PC/M stands for programming language for micro computers. Because it gives high speed input/output operations and user friendly command language.