Computer fundamental MCQ Questions and answers- Technical Aptitude

Supercomputing technology comprises supercomputers, the fastest computers in the world. Supercomputers are made up of interconnects, I/O systems, memory and processor cores. Unlike traditional computers, supercomputers use more than one central processing unit (CPU).

A special type of device which uses an ordinary telephone with a computer is Acoustic couple. A device that converts digital signals to audio signals in order to allow the transmission of data (as from a computer) over a telephone lines an acoustic coupler.

ENIAC, in full Electronic Numerical Integrator and Computer, the first programmable general-purpose electronic digital computer, built during World War II by the United States. American physicist John Mauchly, American engineer J. 20 numbers could it store in its internal memory.

A hand-held device for optically reading bar codes on goods, labels & shelves is wand. A wand is a term used to describe a hardware device the size of a large writing pen (stylus). It is used to scan an object, such as a barcode, into a computer or other electronic devices. A wand is a tool similar to a writing pen that is used to draw on a graphics tablet.

Analog computer system is the very old computer system which operates on the mathematical variables in the form of continuously changeable physical quantities/entities like mechanical, electrical, hydraulic, etc. They use continuous values rather than discrete values so they work on analog signal.

The decimal equivalent of the binary number 11100001111 is 1807. A binary number is a number expressed in the base-2 numeral system or binary numeral system, which uses only two symbols: typically 0 (zero) and 1 (one).
(11100001111) = 1807
1 × 2¹⁰ + 1 × 2⁹ + 1 × 2⁸ + 0 × 2⁷ + 0 × 2⁶ + 0 × 2⁵ + 0 × 2⁴ + 1 × 2³ + 1 × 2² + 1 × 2¹ + 1 × 2⁰
= 1024 + 512 + 256 + 0 + 0 + 0 + 0 + 8 + 4 + 2 + 1
= 1807

Disk cartridge or Optical disk cartridge may refer to , A 1960s computer disk pack which has a single hard disk platter encased in a protective plastic shell.

Computers increase your productivity and, with a good understanding of the software running on them, you become more productive at everything you do. For example, once you have a basic understanding of using a word processor, you can create, store, edit, share, and print documents and letters.

COBOL : COBOL is an acronym for COmmon Business Oriented Language. COBOL is a high-level programming language very first developed by CODASYL Committee (Conference on Data Systems Languages) in early of 1960’s (First COBOL compiler was implemented in the same year). In the later years, so many revisions and modifications applied on the initial version of COBOL. COBOL primarily developed for business, finance and administrative system needs and mostly using in banking, insurance applications and government sectors. COBOL is mostly used language in the mainframe system to implement the changes to get the objective.

Source : mainframestechhelp.com

Application software (app or application for short) is computer software designed to perform a group of coordinated functions, tasks, or activities for the benefit of the user.