6999+ Computer Awareness Questions for SSC CGL, CHSL Pdf - 1

Question: 1

A beam of light used to record and retrieve data on optical disks is called

(A) coloured light

(B) laser

(C) polarized light

(D) unpolarized concentric light

Question: 2

Which can read data and convert them to a form that a computer can use?

(A) logic

(B) control

(C) input device

(D) storage

Question: 3

The input unit of a computer

(A) feeds data to the CPU or memory

(B) directs all other units

(C) retrieves data from CPU

(D) all of these

Question: 4

The register or main memory location which contains effective address of the operand is called

(A) scratch pad

(B) special location

(C) indexed register

(D) pointer

Question: 5

A device or peripheral equipment which is not in direct communication with CPU of a computer is called

(A) intelligent terminal

(B) channel

(C) on-line device

(D) off-line device