2021 NATIONAL EXAMINATION COUNCIL (NECO)
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A past paper is an examination paper from a previous year or previous years, usually used either for exam practice or for tests such as University of Oxford, University of Cambridge College Collections.
Exam candidates find past papers valuable in test preparation. Some organizations responsible for holding exams have made past exam papers commercially available by either publishing the papers by themselves or licensing a publisher to do the same
Previous year question papers are to assess student’s brilliancy and capabilities. Students who are preparing for competition exams generally look for past papers. These question papers will help you to have an idea about the main exam. Students generally find these past papers as private websites reveal more information than the official websites.
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👉 CLICK HERE FOR 2021 NECO COMPUTER THEORY, OBJECTIVES QUESTIONS 👈
COMPUTER OBJ (MORE SOLUTIONS LOADING….)
COMPUTER THEORY (MORE SOLUTIONS LOADING….)
The control unit is a component of a computers central processing unit that directs the operation of the processor.
CU typically uses a binary decoder to convert coded instructions into timing and control signals that direct the operation of the other units. Most computer resources are managed by the CU.
An arithmetic logic unit is a combinational digital circuit that performs arithmetic and bitwise operations on integer binary numbers. This is in contrast to a floating-point unit, which operates on floating point numbers.
Register is defined as the small subset of the data that has fast accessible memory in the central processing unit. For the execution of different computer instructions and programs type of registers are used. There are numerous categories of computer registers that are available for the execution of instructions. The registers can be categorized by their size, functions, or names. These registers are used to store the data temporarily and perform the execution of computer instructions and can be also used to store results in it. The processing speed of registers is the fastest to another data set.
Phishing is a method of identity theft that relies on individuals unwittingly volunteering personal details or information that can be then be used for nefarious purposes. It is often carried out through the creation of a fraudulent website, email, or text appearing to represent a legitimate firm.
(i) Space on the hard disk
(ii) The size of the RAM
(i) AVG Antivirus
(ii) Norton Antivirus.
(i) .com: They are use initially intended to distinguish commercial organizations
(ii) .net: They are use connect Nordic national research and educational networks
(iii) .org: They are use for both nonprofit and for-profit organizations.
(i) Google Chrome.
(ii) Mozilla Firefox
Network Topology is the schematic description of a network arrangement, connecting various nodes(sender and receiver) through lines of connection.
(i) Transmitting network is not affected by high traffic or by adding more nodes, as only the nodes having tokens can transmit data.
(ii) Cheap to install and expand
An algorithm is a finite sequence of well-defined, computer-implementable instructions, typically to solve a class of specific problems or to perform a computation.
(ii) Corel WordPerfect
(i) Google Sheets
(ii) Microsoft Excel
File security is a feature of your file system which controls which users can access which files, and places limitations on what users can do to various files in your computer.
(i) Computer files are transferred electronically.
(ii) Computer files are difficult to destroy and can last for a long time.
(iii) Computer files is difficult to access at all times
(i) Manual files can be transported through physical means
(ii) Manual files can warn off and can be depleted easily by hand.
(iii) Manual files is Easy to access whenever required
A programming language is a vocabulary and set of grammatical rules for instructing a computer or computing device to perform specific tasks. The term programming language usually refers to high-level languages, such as BASIC, C, C++, COBOL, Java, FORTRAN, Ada, and Pascal.
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Originally posted 2022-10-26 19:39:01.