Computer Science Topics
Postgraduate level — Computer Science
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quiz Questions
Q71
In binary computer math arithmetic configurations, what is the exact decimal equivalent value represented by the binary code sequence 1011?
9
11
13
15
Explanation
To convert a binary number to decimal, evaluate base-2 tracking columns: (1 × 2³) + (0 × 2²) + (1 × 2¹) + (1 × 2⁰) = 8 + 0 + 2 + 1 = 11.
Q72
Which type of computer software utility is specifically configured to optimize, configure, and maintain physical computer hardware operations or disk partition tracking spaces safely?
Application Software layer
Utility Software tool
Custom Database schema
Firmware loader wrapper
Explanation
Utility Software consists of specialized maintenance programs (such as disk defragmenters, antivirus suites, and system cleaners) explicitly engineered to fine-tune infrastructure operations.
Q73
What is the primary operational objective of implementing DMA (Direct Memory Access) channels inside basic computer hardware peripheral infrastructures?
To enable high-speed direct peripheral storage transfers to RAM bypassing continuous CPU intervention
To enforce total serialization of mathematical instruction code arrays
To completely erase volatile micro-register cache paths dynamically
To bypass the internal address bus lines natively inside silicon layers
Explanation
Direct Memory Access (DMA) allows external high-speed hardware peripherals to transfer block data arrays directly to or from the system RAM without continuously interrupting the main CPU core pipeline.
Q74
Which fundamental basic computer device handles optical data metrics tracking to digitize paper photos or document layouts into standard binary file profiles?
Plotter peripheral
Scanner device
Laser printer engine
Cathode ray buffer
Explanation
A Scanner uses optical sensing configurations to scan physical document surfaces, mapping light patterns directly into bitmapped binary digital matrices read safely by application tools.
Q75
Which unit metric parameter describes the absolute internal clock frequency speed thresholds of a modern microprocessor core natively?
Megabytes per second (MB/s)
Gigahertz (GHz)
Bits per inch (BPI)
Lines per minute (LPM)
Explanation
The basic CPU cycle speed metrics track the number of internal clock pulse cycles a chip handles per second, scaled today natively in Gigahertz (GHz) grids.
Q76
In computer systems tracking binary bit states, what is the exact decimal equivalent represented by the binary code sequence 1101?
11
13
14
15
Explanation
To convert the binary code 1101 to its decimal equivalent, calculate the positional base-2 weights: (1 × 2³) + (1 × 2²) + (0 × 2¹) + (1 × 2⁰) = 8 + 4 + 0 + 1 = 13.
Q77
Which of the following character encoding standards utilizes a fixed 7-bit length format to uniquely represent 128 distinct characters natively inside basic computer hardware?
UTF-8 matrix
ASCII code framework
EBCDIC cluster format
Unicode basic schema
Explanation
ASCII (American Standard Code for Information Interchange) uses a 7-bit binary encoding structure to define up to 128 characters, covering standard English alphabets, numerical digits, and core control codes natively.
Q78
Which basic computer hardware device uses a specialized matrix layout featuring a collection of tiny heating pins or impact hammers striking an inked ribbon to imprint character dots onto physical paper layers?
Laser printer engine
Dot Matrix Printer
Inkjet plotter unit
Thermal sublimation buffer
Explanation
A Dot Matrix Printer is an impact printer that characteristically prints by using a print head that runs back and forth on the page, striking an ink-soaked cloth ribbon against the paper, much like the mechanism of a typewriter.
Q79
What is the primary technical parameter that defines the operation of non-maskable interrupts (NMI) inside baseline computer microprocessor core loops?
An interrupt that can be delayed dynamically during active instruction fetches
A critical hardware interrupt that cannot be ignored or disabled by software masking structures
A purely virtual software exception triggered exclusively within network buffers
An execution fault that flushes the entire instruction cache pipeline permanently
Explanation
A Non-Maskable Interrupt (NMI) is a hardware interrupt that cannot be ignored or disabled by any software masking flags inside the processor registers; it must be serviced immediately due to its critical nature (such as a hardware failure alert).
Q80
Which type of computer input peripheral is specifically designed to detect multi-directional rotational tracking coordinates using an internal spherical ball interface or an optical laser tracking grid?
Digitizer stylus tablet
Mouse device
Flatbed transparency scanner
Bar code reader wand
Explanation
A computer Mouse tracks physical 2D positioning relative to a flat desktop plane via mechanical ball rollers or specialized optical sensors, translating human hand gestures cleanly into system graphical coordinates.