NECO 2020 COMPUTER STUDIES (OBJ & ESSAY) ANSWERS – EXPO RUNS
COMPUTER OBJ:
1-10: DDCDDEEBCA
11-20: AECEDAEACB
21-30: BCCAADCDDE
31-40: EAECAEDEAC
41-50: CEAABDABAD
51-60: ACCCAAADDD
==================================================
(1a)
(i)Ctrl + F¹¹ —>lock a field so it can not be edited
(ii)Ctrl + T —> create a hanging indent
(iii)Shift + F¹¹ —> jump to pervious field in a document
(iv))Ctrl + R —> Align Right
(1b)
(i)It must be correct and accurate
(ii)It must be properly arranged
(iii)It must be useful
(iv)It must be fresh and comprehensive
(1c)
(i)Broadbands system
(ii)Low error rates
(iii)It provides greater bandwidth system-wide
(iv)It supports a mixed range of service
==============================================
(3ai)
Data representation is defined as the form in which data is stored, processed, and transmitted
(3aii)
(i)Registered jack (RJ-11): it is used to connect telephone equipment
(ii)Universal serial bus (USB): it is used to connect a peripheral device such as mice, modern, keyboard, printers to the computer
(iii)Fiber local connector: it is for single-mode and multi-mode fiber-optic cable
(iv)F-Type: it is used for cable and universally for satellite television
(3bi)
Binary coded decimal: this use 4 – bit to present each decimal digit in a number for example to represent the number 23, there will be two groups of four-bit each
0010. 0011
2. 3
(3bii)
Extended binary coded decimal interchange code: this may be described as an 8-bit coded system. It can conveniently be used to represent the decimal digit 0 to 9 upper case or lower case letters and extra characters.
==============================================
(4ai)
Presentation package is defined as a software program that provides the resources necessary to give a professional presentation for meetings, lectures, speeches, or other similar situations.
(4aii)
(i)Mobile editing
(ii)creative design tools
(iii)online sharing
(iv)technical support
(4bi)
Data bus: the data bus allow data to travel back and forth between the microprocessor (CPU) and memory (RAM)
(4bii)
Address bus: the address bus came information about the location of data in memory
(4biii)
Control bus: the control bus carries the signals that make sure everything is flowing smoothly from place to place.
==============================================
(5a)
[Tabulate]
-Application software-
(i)spreadsheet
(ii)desktop publishing
-Two examples-
-Spreadsheet-
(i)Microsoft excel
(ii)Lotus 1-2-3
-Desktop publishing-
(i)Corel draw
(ii)Microsoft word
(5bi)
CC: it stands for carbon copy; it is a way of sending copies of email to other people whereas the list of all the recipients can be seen by other recipients.
(5bii)
BCC: it stands for blind carbon copy; it is a way of sending copies of email to other people whereas other recipients would not be able to see that someone else has been sent a copy of the e-mail.
(5biii)
Domain name: this is a name; it is an address where Internet users can access one’s website. It is a unique name that identifies a website
==================================================
COMPLETED – GOODLUCK
==================================================
