Which of the following networks covers the widest range?
- A. LAN.
- B. MAN.
- C. PAN.
- D. WAN.
.The line segment that describes the contents of the message when sending an e-mail is?
- A. Cc.
- B. Contents.
- C. Subject.
- D. To.
The use of satellite to transmit signal information to the earth is enabled with the use of?
- A. GSM.
- B. GPS.
- C. POS.
- D. WAN
An example of a programming language that uses mnemonic codes is?
- A. Assembly program.
- B. BASIC program.
- C. COBOL program.
- D. FORTRAN program.
A pictorial representation of program flow is referred to as?
- A. algorithm
- B. flow chart.
- C. process mapping.
- D. pseudo code
The first stage in program development is problem?
- A. analysis.
- B. definition.
- C. solving.
- D. testing
The operating system, translators and utility programs are examples of?
- A. application software.
- B. customized Software.
- C. network software.
- D. system software.
An example of a specific purpose application package is the?
- A. payroll program.
- B. database program.
- C. spreadsheet program.
- D. word processing program
Which of the following is not a function of the operating system?
- A. Analysis of the computer components.
- B. Ensuring the proper functioning of hardware.ย ย ย ย ย ย ย ย ย ย .
- C. Maintenance of directories in external storage.
- D. Opening and closing files.
The memory unit of the computer belongs to the?
- A. control unit
- B. input device
- C. output device
- D. system unit
Use the Logic gate above to answer this question.
When signals X= 0 and Y= 1, signal Z is?
- A. 0.1
- B. 0
- C. 1
- D. 0+1
X, Y and Z respectively, represents?
- A. input, output and input signals.
- B. output, output and input signals
- C. output, input and output signals.
- D. input, input and output signals.
Figure 1 above is a logic gate. Use it to answer questions 12 to 14.
Figure 1 represents?
- A. a NOT gate.
- B. a NAND gate
- C. an AND gate
- D. an OR gate.
Which of the following is not a mobile input device?
- A. Joystick
- B. Light pen
- C. Mouse
- D. Scanner
Output devices in a computer are those devices that send?
- A. results to the memory of the computer
- B. processed data and instructions into the computer
- C. in data and instructions into the computer
- D. data and instructions into the memory of the computer
The hardware of a computer does not consist of?
- A. casing
- B. mouse
- C. peripherals
- D. windows
The device through which the main components of the computer communicate with each other is called?
- A. keyboard
- B. memory
- C. light pen
- D. system bus
If the output signal of any logic gate is fed into an inverter, the results is? .
- A. NOT gate
- B. Nor gate
- C. the inverse of the output signal
- D. the same as the output signal
The computer memory is, measured in?
- A. bit
- B. bytฤ
- C. hertz
- D. nibble
The computer hardware is made up of system unit and?
- A. motherboard
- B. peripheral
- C. control unit
- D. central processing unit
Abacus is used for?
- A. addition
- B. subtraction
- C. addition and subtraction
- D. multiplication and division