Computer fundamental MCQ Questions and answers- Technical Aptitude

The first general purposes programmable electronic computer was the Electronic Numerical Integrator and Computer. Alternatively referred to as an electron tube or valve and first developed by John Ambrose Fleming in 1904.

Intel's first microprocessor, the 4004, was conceived by Ted Hoff and Stanley Mazor. Assisted by Masatoshi Shima, Federico Faggin used his experience in silicon-gate MOS technology (1968 Milestone) to squeeze the 2300 transistors of the 4-bit MPU into a 16-pin package in 1971.

EBCDIC (Extended Binary Coded Decimal Interchange Code ) is a binary code for alphabetic and numeric characters that IBM developed for its larger operating systems. It is the code for text files that is used in IBM's OS/390 operating system for its S/390 servers and that thousands of corporations use for their legacy applications and databases. In an EBCDIC file, each alphabetic or numeric character is represented with an 8-bit binary number (a string of eight 0's or 1's). 256 possible characters (letters of the alphabet, numerals, and special characters) are defined.

The Jacquard machine is a device fitted to a power loom that simplifies the process of manufacturing textiles with such complex patterns as brocade, damask and matelasse. The loom was controlled by a "chain of cards"; a number of punched cards laced together into a continuous sequence.

The IBM Personal System/2 Model 80 (IBM 8580) enhances the System/2 family of systems by offering a new level of performance in personal computing for both commercial and compute-intensive environments. This system is highlighted by the new Micro Channel (TM) Architecture with a 16MHz 80386 32-bit microprocessor, high-density memory technology, and a wide range of integrated features.

An EPROM or erasable programmable read-only memory, is a type of memory chip that retains its data when its power supply is switched off. Computer memory that can retrieve stored data after a power supply has been turned off and back on is called non-volatile. It is an array of floating-gate transistors individually programmed by an electronic device that supplies higher voltages than those normally used in digital circuits. Once programmed, an EPROM can be erased by exposing it to strong ultraviolet light source (such as from a mercury-vapor light).

Source : wikipedia.org

ELLIAC is the name of the computer which was first used for programming and playing of music. Mathematician Geoff Hill programmed the CSIRAC to play popular musical melodies from the very early 1950s. In 1950 CSIRAC was used to play music, the first known use of a digital computer for the purpose. The music was never recorded, but it has been accurately reconstructed.

Sequential Access. The standard method for accessing files and devices is the sequential method. It can be like a cassette tape that rewinds itself after every use.

The arranging of data in a logical sequence is called Sorting. Sorting is the process of rearranging a sequence of objects so as to put them in some logical order.

Pascal is an imperative and procedural programming language, which Niklaus Wirth designed in 1968–69 and published in 1970, as a small, efficient language intended to encourage good programming practices using structured programming and data structuring. It is named in honor of the French mathematician, philosopher and physicist Blaise Pascal. Pascal runs on a variety of platforms, such as Windows, Mac OS, and various versions of UNIX/Linux.