Computer fundamental MCQ Questions and answers- Technical Aptitude

An output device that converts data from a binary format in main storage to coded whole patterns punched into a paper tape is Paper tape punch. Similar to a punch card, punch tape is used with some early computers as a means to store and input data into the computer.

A computer performs operations by comparing data items and then, depending on the results, follows predetermined course of action. The operations called in Logical of or according to the rules of logic or formal argument.

An indexed file is a computer file with an index that allows easy random access to any record given its file key. The key must be such that it uniquely identifies a record. The indexes are created with the file and maintained by the system.

In 8085 microprocessor, Address bus is of 16 bits (A0-A15) and can transfer maximum 16 bit address and hence can address 65,536 different memory locations. This bus is multiplexed with 8 bit data bus. So, the most significant bits (MSB) of address goes through Address bus and LSB goes through multiplexed data bus.

1) Control of computer system or subsystem operation bayan operator who may intervene at arbitrary times is Manual control.
2) The key characteristic of control is to interfere, to influence or to modify the process.
3) Manual Controls are controls that are manually performed by individuals.

Bit map terminal is a Support displays containing multiple windows, requires considerable amount of video RAM and requires tremendous amount of copying and hence low performance. A bit map defines a display space and the color for each pixel or "bit" in the display space.

Prolog has been used largely for logic programming, and its applications include natural language understanding and expert systems such as MYCIN. Prolog is notably a so-called nonprocedural, or declarative, language in the sense that the programmer specifies what goals are to be accomplished but not.

A data definition language or data description language (DDL) is syntax similar to a computer programming language for defining data structures, especially database schemas.

The Central Processing Unit (CPU) is also known as the microprocessor or processor. The processor contains three sections called the Arithmetic Logic Unit (ALU), the Control Unit and Registers. Control unit: The Control Unit makes decisions and sends the appropriate signal down its lines to other parts of the computer.

Then binary numbers are commonly used in digital and computer circuits and are represented by either logic “0” or logic “1”. Binary numbering systems are best suited to the digital signal coding of binary, as it uses only two digits, one and zero, to form different figures.