Computer Past Questions And Answers
what is the first computing machine invented ?
- A. slide rule
- B. Pascal calculator
- C. Napier bones
- D. Abacus
What is the shortcut key to undo last action on a Microsoft word page?
- A. Ctrl + A
- B. Ctrl + U
- C. Ctrl + X
- D. Ctrl + Z
The process where a programmer converts a program specifications into computer instructions is called ?
- A. Debugging
- B. Coding
- C. Testing
- D. System design
(a) What are input devices?
(b) list two input devices
(c) State two uses of logic gates
(d) Draw and label the logic gate symbol for;
(i) OR gate (ii) AND gate
View Discussion (0)WAEC 2017 THEORYWhat type of device is a computer printer?
- A) storage
- B) output
- C) input
- D) software
Changing the default settings or appearance of the Taskbar in windows by a user is known as
- A. customization
- B. designing
- C. generalization
- D. globalization
A computer program that gathers information about a person or organization without their knowledge or consent is known known as
- A. adware
- B. time bomb
- C. trojan horse
- D. spyware
(a) Match each of the following computing devices.
COMPUTER DEVICES | USES |
EDVAC | Electronic general-purpose computer programmed to perform complex sequences of operation. |
ENIAC | Electronic digital stored-program computer intended for the bureau of census and later for presidential election. |
UNIVAC | Electronic computer, binary in nature with automatic addition, subtraction multiplication and programmed division. |
The first stage in program development is problem?
- A. analysis.
- B. definition.
- C. solving.
- D. testing
| Character | Decimal code | ASCII CODE |
| N | 78 | 1001110 |
| O | 1 | 1001111 |
| T | 84 | 11 |
- A. 72
- B. 74
- C. 75
- D. 79