Computer Fundamental Miscellaneous - Study Mode

[#726] Which of the following is not one of the three primary functions that on-line direct-access systems can serve?
Correct Answer

(B) backup

Explanation

Solution: 1) Select the Start button, then select Control Panel > System and Maintenance > Backup and Restore. 2) Do one of the following: If you've never used Windows Backup before or recently upgraded your version of Windows, select Set up backup, and then follow the steps in the wizard.

[#727] How many bits can be stored in the 8K RAM?
Correct Answer

(B) 8192

Explanation

Solution: RAM with 8K memory can store 8192 bytes or 65536 bits. 8K means 8 × 1024 bits = 8192 bits. RAM size generally mentioned in bits. Such as 4K × 8, 8K × 8, 4K × 16, 8K × 16 likewise. For example 8K × 16, a RAM which has 8K = 8192

[#728] A code which uses more bits for each character then what is necessary is known as
Correct Answer

(C) Redundant code

Explanation

Solution: In computer programming, redundant code is source code or compiled code in a computer program that is unnecessary, such as: 1) Recomputing a value that has previously been calculated and is still available, code that is never executed (known as unreachable code). 2) Code which is executed but has no external effect (EG, does not change the output produced by a program; known as dead code).

[#729] Point out the odd item amongst the following
Correct Answer

(D) Printer

Explanation

Solution: Printer is an output device others are input devices. Printer also called computer printer, electronic device that accepts text files or images from a computer and transfers them to a medium such as paper or film. It can be connected directly to the computer or indirectly via a network.

[#730] Access time in a computer memory is the time required to
Correct Answer

(C) Both locate and retrieve the data

Explanation

Solution: The length of time required by a computer to retrieve or store data. The time required for a computer program or device to locate and retrieve, or to write and store, a piece of data. Memory access time is how long it takes for a character in RAM to be transferred to or from the CPU.