Computer Science Topics
Postgraduate level — Computer Science
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quiz Questions
Q111
In basic computer logic gates, which logic operation outputs a binary '1' if and only if all of its input bits are simultaneously set to '1'?
OR Gate operation
AND Gate operation
XOR Gate operation
NOT Gate inversion
Explanation
The AND logic gate operates as a conjunction. It requires all inputs to be True (1) to generate a True (1) output state. If any single input bit is 0, the output cleanly defaults to 0.
Q112
Which fundamental basic computer peripheral tracks coordinate spaces via an internal light-emitting diode (LED) or laser diode passing over a patterned grid desktop surface?
Trackball console
Optical Mouse
Digitizer panel stylus
Light pen interface
Explanation
An Optical Mouse replaces traditional mechanical tracking balls with an optoelectronic sensor. It captures thousands of micro-images per second to compute precise 2D navigational coordinate offsets.
Q113
What core performance metrics limitation occurs due to bus routing congestion when code instructions and user data share a single memory space channel?
Harvard processing lag
Von Neumann Bottleneck
DMA pipeline starvation
Cache coherency delay
Explanation
The Von Neumann Bottleneck describes the performance threshold constraint that occurs because the CPU cannot simultaneously read an instruction and read/write user data over a single shared system bus pipeline.
Q114
Which type of low-level system configuration soft program is explicitly engineered to interface physical external devices with the operating system kernel loop layer?
Application interpreter tool
Device Driver program
Linker assembly script
Database connector module
Explanation
A Device Driver is a specialized translator software framework that enables the operating system to smoothly communicate with and control specific physical hardware peripherals.
Q115
Which binary storage capacity data metric parameter corresponds precisely to exactly 1024 Kilobytes (KB) inside hardware indexing frameworks?
1 Byte block
1 Megabyte (MB)
1 Gigabyte (GB)
1 Terabyte (TB)
Explanation
In computer data tracking system layouts, exactly 1024 Kilobytes (KB) map mathematically to equal exactly 1 Megabyte (MB) based on the base-2 scale system configurations.
Q116
In basic computer hardware numbering systems, what is the exact binary code representation for the hexadecimal character 'F'?
1110
1111
1001
1011
Explanation
The hexadecimal character 'F' represents the decimal value 15. Converting the decimal number 15 into a 4-bit binary sequence yields 1111, calculated as (1 × 2³) + (1 × 2²) + (1 × 2¹) + (1 × 2⁰) = 8 + 4 + 2 + 1 = 15.
Q117
Which type of foundational computer logic gate reverses or flips the binary input state, converting a '1' into a '0' and vice versa?
OR Gate
AND Gate
NOT Gate
XOR Gate
Explanation
The NOT gate operates as an inverter circuit. It takes exactly one binary input bit and yields its absolute boolean opposite state as output.
Q118
Which basic computer device is functionally categorized as an optical output peripheral capable of casting large-scale binary image layouts onto wall surfaces?
Flatbed transparency scanner
Multimedia Projector
Optical mark decoder unit
Digitizer coordinate stylus
Explanation
A Multimedia Projecter functions as an optical output peripheral that amplifies and projects light graphics signals received from system pipelines onto standalone external displays or flat walls.
Q119
What core performance optimization function is natively handled by the operating system's virtual memory subsystem setups?
To seamlessly emulate additional physical system RAM using secondary hard drive storage sectors
To permanently store compiled assembly bytecode into non-volatile bios ROM modules
To completely eliminate the micro-clock timing pulses managed by the processing core
To bypass address mapping tasks generated inside input buffer interfaces
Explanation
Virtual Memory simulates extra physical volatile RAM by temporarily allocating contiguous buffer blocks across secondary hard disk storage space, allowing systems to process larger software codebases seamlessly.
Q120
Which measurement unit represents the base storage capacity metrics parameter containing exactly 8 binary data bits inside tracking architectures?
1 Nybble slice
1 Byte block
1 Word matrix
1 Kilobyte index
Explanation
In compliance with core machine logic definitions, a single standard Byte comprises precisely 8 individual bits mapped structurally together to track alphanumeric tokens safely.