A. feeds data to the CPU or memory
B. retrieves data from CPU
C. directs all other units
D. All of the above
✅ The correct answer is option A.
Computer mcqs
Which key on keyboard of a computer does not have its name printed on the key?
A. ESC
B. SHIFT
C. F1
D. SPACE
✅ The correct answer is option D.
A byte represents a group of
A. 10 bits
B. 40 bits
C. 8 bits
D. 22 bits
✅ The correct answer is option C.
An integrated circuit is
A. a complicated circuit
B. an integrating device
C. much costlier than a single transistor
D. fabricated on a tiny silicon chip
✅ The correct answer is option D.
In MODEMS
A. Several digital signals are multiplexed
B. A digital signal changes some characteristic of a carrier wave
C. Digital signal is amplified
D. All of the above
✅ The correct answer is option B.
Which network protocol is used to send Email?
A. FTP
B. SSH
C. POP3
D. SMTP
✅ The correct answer is option D.
The register which keeps track of the execution of a program and which contains the memory address of the instruction currently being executed is known as
A. Index register
B. Memory address register
C. Program counter
D. Instruction register
✅ The correct answer is option C.
A collection of eight bits is called
A. Byte
B. Word
C. Record
D. File
✅ The correct answer is option A.
A device that can accept data, hold them&deliver them on demand at a later time is known as
A. Buffer
B. Memory
C. CPU
D. Register
✅ The correct answer is option B.
Which of the following tasks is not suited for sequential processing by a computer?
A. Preparing of mailing labels
B. Processing payroll cheques
C. Accounting for credit card purchases
D. Inventory control
✅ The correct answer is option D.