Computer Past Questions And Answers
A collection of wires through which data are transmitted from one part of the computer to another is known as
- A. address
- B. bus
- C. driver
- D. register
The advantages of a computer include that they? I. operate at high speeds; II. think for the user; Ill. are accurate; IV. are credible.
- A. I, Il and lll only
- B. I, III and IV only
- C. II, l and IV only
- D. I, II, l and IV
Which of the following is a computer not used for?
- A. entertainment
- B. information
- C. social media
- D. none of the above
(a)(i) What is Universal Serial Bus (USB)?
(ii) State two benefits of using USB connection between a computer and another device.
(b) In Table 1, three storage devices are described, Use it to answer questions 3(b)(i) and 3(b)(ii).
(i) In column 2, name the storage device being described in column 1.
(ii) Show the category of storage device being described in column 1 by ticking in any of the column 3, 4 or 5
| SN | 1 | 2 | 3 | 4 | 5 |
| Description of Storage Device | Name of Storage Device | Category of Storage Device | |||
| Primary | Secondary | Offline | |||
| 1 | Magnetic storage medium which is composed of a thin flexible disk sealed in a square plastic carrier. | ||||
| 2 | Optical media - which uses one spiral track.Red lasers are used to read and write data on the media surface and it makes use of dual-layering technology to increase the storage capacity to over 1 GB. | ||||
| 3 | Non-volatile memory chip which contents cannot be altered. It is often used to store the start-up routines in a computer (e.g the BIOS). | ||||
An icon, a graphic or a text in a document or a webpage that connects to another file or object is called a?
- A. hyperlink
- B. domain name
- C. web browser
- D. web server
The number 28 in binary is?
- A. 1001
- B. 11001
- C. 110011
- D. 11100
(a) State two BASIC programming keywords.
(b) Write the following equations in BASIC format:
(i) I = PRT/100: (ii) Y= AX\(_2\) +BX+C; (iii) Y= MX + C
(c) Write a BASIC program that accepts mass and volume of a liquid as input from the User.
The program should compute.and display the density of the liquid. Density = mass volume
View Discussion (0)WAEC 2016 THEORYWhich generation of computers used vaccum tubes in their circuitry?
- A. First generation
- B. Second generation
- C. Third generation
- D. Fourth generation.
A permanent memory, which has data and instruction to start up the computer and does not erase data after power off.
- A. network interface card
- B. CPU
- C. RAM
- D. ROM
One attribute of the Read Only Memory is that it?
- A. can be modified.
- C. is volatile.
- C. stores the BIOS.
- D. stores the POST.