Computer Science - IT MCQs
Topic Notes: Computer Science - IT
<p>MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.</p>
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
101
What is the name of the light-sensitive hardware device that converts physical documents or images into digital files?
Answer:
Scanner
A scanner is an input device that uses light-sensing technology to capture images, printed text, or drawings and convert them into a digital format. This allows physical documents to be stored, edited, or shared electronically on a computer system.
102
What type of memory is programmed with data during the manufacturing process and cannot be altered by the user?
Answer:
ROM
Read-Only Memory (ROM) is a type of non-volatile memory that is permanently programmed during the manufacturing phase.
103
Which type of computer memory contains a permanent, pre-defined pattern of data that cannot be easily altered?
Answer:
ROM
Read-Only Memory (ROM) is a type of non-volatile memory used in computers to store essential instructions, such as the firmware required to boot the system.
104
Which of the following is not classified as a character reading device?
Answer:
LCD
OCR (Optical Character Recognition), MICR (Magnetic Ink Character Recognition), and OMR (Optical Mark Recognition) are input technologies used to read data.
105
What is the common name for the silicon chips that perform data processing within a computer?
Answer:
Micro processor
A microprocessor is a central processing unit (CPU) contained on a single integrated circuit (IC) chip. These silicon-based chips are the 'brains' of the computer, executing instructions and processing data.
106
What is the term for a storage disk that utilizes both sides for recording data?
Answer:
Double-sided disk
A double-sided disk is a storage medium designed to record data on both the top and bottom surfaces.
107
What is the primary function of the control unit within a microprocessor?
Answer:
None of the above
The control unit is responsible for directing the operation of the processor by interpreting instructions and coordinating the flow of data between the CPU and other components.
108
What is the term for the physical connection that links the microprocessor, memory, and other components within a microcomputer?
Answer:
Address bus
An address bus is a computer bus architecture used to transfer information between devices that are identified by the hardware address of the physical memory, facilitating communication between the CPU and other components.
109
What is the status of a diskette if it has a piece of foil covering its notch?
Answer:
write-protected
In older 5.25-inch floppy disk technology, the write-protect notch was located on the side of the disk.
110
Which of the following devices functions as both an input and an output peripheral?
Answer:
Teletype terminal
A teletype terminal consists of a keyboard for inputting data and a printer or display mechanism for outputting data. This dual functionality allows it to serve as a bidirectional communication interface for computer systems.