WAEC COMPUTER STUDIES ANSWERS

(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.

(2ci)
-Cyberterrorism
-Booming Cybersecurity Industry

(2cii)
-User account access controls and cryptography
-firewalls

(3b)
– planning
-analysis
-design
-implementation

(3c)
-Portability
-Readability
-Efficiency
-Flexibility

(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

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