1.Which are the input devices that enable direct data entry into a computer system from source documents?
[A] Data Scanning devices
[B] Data retrieving devices
[C] Data acquiring devices
[D] System Access devices
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Explanation: They are referred to as data scanning devices. They eliminate the need to key in text data into the computer. It demands the high quality of input documents. ©navclasses
2.Which of the following is the fastest form of RAM and also the most expensive so not used as main memory but rather for cache memory?
[A] SRAM
[B] DRAM
[C] SDRAM
[D] None of These
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Explanation: Static random-access memory is a type of memory that uses bistable latching circuitry to store each bit. SRAM is volatile in the conventional sense that data is eventually lost when the memory is not powered. ©navclasses
3.Which of the following is the ability of a system to jump directly to the requested data?
[A] Sequential Access
[B] Random Access
[C] Quick Access
[D] All of the Above
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Explanation: Random-access memory is a form of computer data storage that stores data and machine code currently being used. A random-access memory device allows data items to be read or written in almost the same amount of time irrespective of the physical location of data inside the memory. ©navclasses
4.It is a type of printer which can print multiple carbon copies at once. What is the name of this type of printer?
[A] Impact Printer
[B] Laser Printer
[C] Inkjet Printer
[D] None of the Above
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Explanation: Impact printer refers to printers that work by banging a head or needle against an ink ribbon to make a mark on the paper. This includes dot-matrix printers, daisy-wheel printers, and line printers. ©navclasses
5.There are many types of plotters available. Which of the following is the type of a plotter?
[A] Drum Plotter
[B] Flatbed Plotter
[C] Handheld plotter
[D] Both a and b
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Explanation: There are two main types of plotters – drum and flatbed plotters. Drum plotters spin the paper back and forth on a cylindrical drum while the ink pens move left and right. The drum plotters are generally smaller than flatbed plotters. ©navclasses
6.Which of the following clearly defines the LGA?
[A] A LGA Socket is the connection point for the CPU.
[B] It stands for Land Grid Array.
[C] It provide connection to motherboard.
[D] All of the Above
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Explanation: LGA is a chip package with a very high density of contacts. LGAs differ from traditional chips with protruding pins that are inserted into a socket. An LGA chip has flat pads on the bottom of its package that touch contacts on the motherboard socket. ©navclasses
7.Which of the following defines the term Modularization correctly?
[A] It is a program where instructions are modules.
[B] It is a technique where software is divided into modules.
[C] A module is a separate software component.
[D] Both b and c
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Explanation: Modularization is a technique to divide a software system into multiple discreet modules, which are expected to carry out task independently. ©navclasses
8.What is plan 9 form the Bell labs?
[A] It is a distributed operating system.
[B] The first official release was in 2015.
[C] Both a and b
[D] None of the Above
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Explanation: Plan 9 from Bell Labs is a distributed operating system. It originated in the Computing Sciences Research Center (CSRC) at Bell Labs in the mid-1980s. ©navclasses
9.Which of the following is the numerical computing software for scientists and mathematicians?
[A] MATLAB
[B] EDGE
[C] Excel
[D] Arc
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Explanation: MATLAB is a multi-paradigm numerical computing environment and proprietary programming language developed by Math Works. It is the easiest and most productive software environment for engineers and scientists. ©navclasses
10.ACID is a set of properties of database transactions intended to guarantee validity even in the event of errors, power failures etc.What is the full form of ACID?
[A] Aquired Consistency In Database
[B] Atomicity, Consistency, Isolation, Durability
[C] Atomicity,Control,Isolation,Dependency
[D] Atomicity,Concurrecny,Isolation,Durability
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Explanation: Andreas Reuter and Theo Harder coined the acronym ACID for Atomicity, Consistency, Isolation, and Durability. In the context of databases, a sequence of database operations that satisfies the ACID properties is called a transaction. ©navclasses
