i) super computer
ii) mainframe computer
iv) mirco computer
information and communications technology is an
umbrella term that includes any communication
device or application, encompassing: radio,
television, cellular phones, computer and network
hardware and software, satellite systems and so on,
as well as the various services and applications
i)Making learning more interesting for hard-to-
ii)Bridging distances – e.g using e-mails, phone,
video conferencing etc.
iii)Breaking literacy barriers in communication – e.g
using video and radio.
Computer ethics is a part of practical philosophy
which concern with how computing professionals
should make decisions regarding professional and
i)Pupils are prohibited to enter the lab unless
authorised by the teacher.
ii)Scan diskettes before using them.
iii)Report all problems related to the system to the
iv)Do not attempt to repair or tamper with lab
v)Be responsible when using equipment, software
and facilities in the lab.
-It is a cheap medium of communication
-It does not give room for leakage of secret
information by hackers
-It is easy to maintain. It requires less technical
Software maintenance in software engineering is
the modification of a software product after delivery
to correct faults, to improve performance or other
-Adapts to a changing environment
-Predictive cash flow
VI. SOCKET AC SOURCE
Ensure you use stabilizer when using the computer
so that the power source will not be fluctuating.
II and III
Fig2. is a DVD diskette
Fig3. Is a magnetic tape diskette
The magnetic tape media is most suitable
A radio player
A radio player
Virtual sequential access method
By compressing the image sizes