Computer fundamental MCQ Questions and answers- Technical Aptitude

The EAM device that does not use a control panel is the sorter. Electro-absorption modulator (EAM) is a semiconductor device which can be used for modulating the intensity of a laser beam via an electric voltage.

The peripheral is being controlled by the CPU, it is said to be online. If additionally, the computer files are updated as soon as any change takes place, the system is called real time system.

A two-out-of-five code is a constant-weight code that provides exactly ten possible combinations of two bits, and is thus used for representing the decimal digits using five bits. Each bit is assigned a weight, such that the set bits sum to the desired value, with an exception for zero.

Cryogenics is the study of material sciences at extremely low temperatures. Cryogenics is of particular interest when applied to electricity and silicon-based semiconductor processors because supercooling can be used to bring about superconductivity.

Some form of training is necessary for employees who will work with computers .Training is the process of enhancing the skills, capabilities and knowledge of employees for doing a particular job. Training process moulds the thinking of employees and leads to quality performance of employees. It is continuous and never ending in nature.

Communication between computers using standard telephone service Requires a change to an analog signal. Analog lines, also referred to as POTS (Plain Old Telephone Service), support standard phones, fax machines and modems.

A floppy disk contains Both circular tracks and sector. A floppy disk, also called a floppy, diskette, or just disk, is a type of disk storage composed of a disk of thin and flexible magnetic storage medium, sealed in a rectangular plastic enclosure lined with fabric that removes dust particles.

It is NOT gate so always it converts the data apposite to it. So 0 becomes 1 and 1 becomes 0. NOT gate yields the reverse of the input signal in output, thus when an input signal 1 is applied to a NOT gate, its output is 0.

The first typewriter to be commercially successful was invented in 1878 by Americans Christopher Latham Sholes, Frank Haven Hall, Carlos Glidden and Samuel W. Soule in Milwaukee.

Quad-density (QD) : A quad density disk is a 5¼" floppy disk with a storage capacity of 720 kilobytes. Quad density floppy disks are often double sided. During their time, quad density floppy disks are not as common as double-sided, double-density floppy disks.