Waec: Computer Obj & Essay Solutions Nw Available For Free

OBJ
1-10: BBAABBCDDD
11-20: DCDBCDADBB
21-30 ABCDCDADCB
31-40: BCDDBADCCA
41-50: BCCDBCADAC

Essay
(1a)
operating system is an organized collection of procedures and
techniques for operating a computer.
(1b)
-providing ease of use of the hard ware component for the
users
-providing assistance to the computer center adminstrators.
(1ci)
-Desktop Publishing software
-Word Processing software
(1cii)
-assembler
-compiler
(1d)
-microsoft acesss
-microsoft visual basic

(2a)
A computer file is a resource for storing information, which is
available to a computer program and is usually based on some
kind of durable storage.
(2b)
(i)
-Performance:Fast performance with a rapid response time is
critical. Transaction processing systems are usually measured
by the number of transactions they can process in a given
period of time.
-Ease of use:Often users of transaction processing systems are
casual users. The system should be simple for them to
understand, protect them from data-entry errors as much as
possible, and allow them to easily correct their errors.
(2bii)
(2ci)
-Cyberterrorism
-Booming Cybersecurity Industry
(2cii)
-User account access controls and cryptography
-firewalls

(3a)
The systems development life cycle (SDLC), also referred to as
the application development life-cycle, is a term used in
systems engineering, information systems and software
engineering to describe a process for planning, creating, testing,
and deploying an information system. The systems
development life-cycle concept applies to a range of hardware
and software configurations, as a system can be composed of
hardware only, software only, or a combination of both.
(3b)
– planning,
-analysis
– design
-implementation,
(3c)
-Portability
-Readability
-Efficiency
-Flexibility
Co

(5a)
An algorithm is any set of detailed instructions which results
in a predictable end-state from a known beginning.
Algorithms are only as good as the instructions given,.
(5b)
-Precision
-Uniqueness
-Finiteness
(5c)
write the algorithm yourself

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