Computer Fundamental Miscellaneous - Study Mode

[#406] A type of channel used to connect a central processor and peripherals which uses multipling is known as
Correct Answer

(C) Multiplexer

Explanation

Solution: A type of channel used to connect a central processor and peripherals which uses multipling is known as Multiplexer.

[#407] The first generation of computers available was based on the bit micro processors.
Correct Answer

(B) 8

Explanation

Solution: The first generation of computers available was based on the 8 bit micro processors.

[#408] The complete picture of data stored in database is known as
Correct Answer

(B) Schema

Explanation

Solution: Option A: Record This option is incorrect. A record in a database refers to a single row of data in a table, which represents a single instance of the entity described by the table. It is not the complete picture of the data stored in the database. Option B: Scheme This option is correct. A schema (often spelled "scheme" in some contexts) is the complete picture of data stored in a database. It includes the structure of the database, such as tables, relationships, constraints, and other elements that define how the data is organized and accessed. Option C: System flowchart This option is incorrect. A system flowchart is a graphical representation of the processes and flow of data within a system. It does not specifically refer to the complete picture of data stored in a database. Option D: Dbms This option is incorrect. A DBMS (Database Management System) is software that provides an interface to create, read, update, and delete data in a database. It is the tool used to manage the database, not the representation of the data itself. Conclusion: The complete picture of data stored in a database is known as the schema , making Option B: Scheme the correct answer.

[#409] Which of the following is intended to be used in all applications runs on mainframe computers.
Correct Answer

(C) PL/1

Explanation

Solution: PL/1 : PL/I is a procedural, imperative computer programming language designed for scientific, engineering, business and system programming uses. It has been used by various academic, commercial and industrial organizations since it was introduced in the 1960s, and continues to be actively used. PL/I's main domains are data processing, numerical computation, scientific computing, and system programming; it supports recursion, structured programming, linked data structure handling, fixed-point, floating-point, complex, character string handling, and bit string handling. The language syntax is English-like and suited for describing complex data formats, with a wide set of functions available to verify and manipulate them.

[#410] A language which is close to that used within the computer is
Correct Answer

(C) Low-level language

Explanation

Solution: The correct answer is (C) Low-level language. Here's why: Low-level languages are designed to be very close to the computer's hardware. They use instructions that the computer can directly understand , often represented in binary code (0s and 1s) or assembly language. Assembly language is a type of low-level language that uses mnemonics (short codes) to represent machine instructions. High-level languages (like Python, Java, C++) are designed to be easier for humans to read and write, and they need to be translated into machine code before the computer can execute them. Therefore, the language closest to what the computer uses internally is a low-level language.