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SECTION 1: COMPUTER FUNDAMENTALS AND INFORMATION PROCESSING (cont’d)
SPECIFIC OBJECTIVES CONTENT
INFORMATION PROCESSING FUNDAMENTALS
(cont’d)
Students should be able to:
12. evaluate the reliability of information Evaluation of information retrieved
obtained from online sources; electronically for authenticity, currency,
relevance, and bias.
13. differentiate between validation and Difference between validation and
verification of data; verification.
14. identify appropriate validation and Methods of validation: range check,
verification checks given a particular reasonableness checks, data type checks,
scenario; and, consistency checks, presence, format and
length.
Methods of verification: double entry and
proofreading (to identify and correct
typographical and transpositional errors).
15. select appropriate file organisation for File access methods: Sequential, serial, direct
particular application. and random.
Application areas: Archiving, payroll file, real
time systems.
Suggested Teaching and Learning Activities
To facilitate students’ attainment of the objectives of this Section, teachers/facilitators are encouraged
to engage students in the teaching and learning activities below.
1. Organise students in groups to conduct a research on the major hardware components of a
computer system. They should use a “show and tell” approach to present findings.
2. Arrange visits to local Computer Technology businesses to expose students to different system
specifications needed, for example, running a video game, web browsing, graphic design,
video editing, and desktop publishing.
3. Teachers should arrange for practical sessions in a computer laboratory. After demonstrations
by the teacher and/or professional, students should be arranged in pairs to carry out activities
such as attaching a monitor, keyboard, and mouse to the computer’s system unit, fixing loose
cables, and changing printer cartridges.
4. Use a video tutorial to illustrate the various types of user interfaces. Allow students to identify
merits of using each interface.
CXC 30/G/SYLL 17 11
