249. How many addresses are required for 25 x 40 video RAM?
A. 2000
B. 1920
C. 1000
D. 2000
✅ The correct answer is option C.
252. A program that is employed in the development, repair or enhancement of other programs is known as
A. System software
B. Software tool
C. Applications program
D. Utility program
✅ The correct answer is option B.
255. The latest PC keyboards use a circuit that senses the movement by the change in its capacitance. What are these keyboards called?
A. Capacitance keyboards
B. Mechanical keyboards
C. Qwerty keyboards
D. Dvorak keyboards
✅ The correct answer is option A.
257. When did Hewlett-Packard Inc. Introduce its first HP-110 laptop computer?
A. 1984
B. 1986
C. 1990
D. 1995
✅ The correct answer is option A.
259. The range of frequencies available for data transmission is known as
A. Baud
B. Bandwidth
C. Byte
D. Bits
✅ The correct answer is option B.
261. Which of the following items is not used in Local Area Networks (LANs)
A. Computers
B. Modem
C. Printer
D. Cable
✅ The correct answer is option B.
263. Which of the following bus types are used by the Apple Macintosh computer?
A. ISA
B. NuBus
C. EISA
D. MCA
✅ The correct answer is option B.
265. An index register that is automatically incremented or decremented with each use is
A. Auto index
B. Asynchronous
C. Assembler
D. Compiler
✅ The correct answer is option A.
267. The first practical commercial typewriter was invented in 1867 in the United States by
A. Christopher Latham Sholes
B. Carlos Glidden
C. Samuel Soule
D. All of the above
✅ The correct answer is option D.
268. Second generation computers are made of
A. Vaccum Tubes
B. Transistors
C. LSI
D. VLSI
✅ The correct answer is option B.