Challenge your competence level in computers, computing, algorithms, hardware and software with these Computer science questions and answers.
The computer that combines the functions of both analog and digital computers is called ?
Digital computer
Analog computer
Hybrid computer
multipurpose computer
Correct answer is C
A hybrid computer is a type of computer that combines the characteristics of both digital and analog computers. It is designed to offer the speed of analog equipment and the accuracy and memory of digital equipment
Computers manipulate data in many ways, and this manipulation is called ?
batching
utilizing
processing
upgrading
Correct answer is C
Computers manipulate data in many ways, and this manipulation is called processing. Data processing refers to the conversion of raw data into meaningful output by performing computations, logical comparisons, and other operations
Which of the following monitors has only two colours
colour monitor
colour graphic adapter (CGA)
dichrome monitor
monochrome monitor
Correct answer is D
A monochrome monitor is a type of CRT computer monitor which was very common in the early days of computing, from the 1960s through the 1980s, before color monitors became popular. They are designed to display one color of information (usually green, amber, or white) along with a different color background (usually black). Therefore, the correct answer is 'monochrome monitor
which communication channel allows the sending of information in one direction only?
simplex mode
half duplex mode
duplex mode
full duplex mode
Correct answer is A
simplex mode allows the sending of information in one direction only, which is similar to a one-way street
Which of the following is an example of graphics software ?
Microsoft word
Adobe Illustrator
Microsoft powerpoint
MS Access
Correct answer is B
Adobe Illustrator is a vector graphics editor and design program developed and marketed by Adobe Inc. It is an example of graphics software, which is used to create, edit, and manipulate visual images
___ is the type of computer that is designed to operate on two states, 0 and 1
Analog computer
Hybrid computer
Digital computer
micro computer
Correct answer is C
A digital computer is a type of computer that operates on digital data, which is represented in binary form (0 and 1). These computers perform calculations using binary digits and can process both numerical and non-numerical data
The term used to describe when new information replaces old information or data is
file loss
delete
re-write
overwrite
Correct answer is D
In computing, when new information replaces old information or data, it is referred to as 'overwrite'. This is because the new data is written over the old data, effectively replacing it. Therefore, the correct answer is 'overwrite
Which of these programming languages is the most suitable for a business data processing?
BASIC
ALGOL
COBOL
FORTRAN
Correct answer is C
COBOL (Common Business-Oriented Language) is the most suitable for business data processing. It was specifically designed for business data processing needs such as arithmetic operations, file handling, and record management. BASIC and FORTRAN are more suited for educational and scientific computations respectively, while ALGOL is more for algorithmic representation
Debugging
Coding
Testing
System design
Correct answer is B
The process where a programmer converts a program specifications into computer instructions is called Coding. Testing is the process of checking the functionality of the program, System design is the process of defining the architecture, components, modules, interfaces, and data for a system to satisfy specified requirements, and Debugging is the process of finding and resolving defects or problems within a computer program
The diagrammatic representation of an algorithm is
pseudocodes
codes
graphics
flowchart
Correct answer is D
The diagrammatic representation of an algorithm is a flowchart. A flowchart is a type of diagram that represents an algorithm, workflow or process, showing the steps as boxes of various kinds, and their order by connecting them with arrows
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