Computer engineering uses software programming. A+ would be almost worthless for computer engineering. A+ focuses more on consumer-level hardware and software (the operating system, motherboards, cable types, etc). It doesn't cover programming.
Computer Science is basically a programming major, but much broader than that. Think computer person with a good background in programming, physics and math.
And there is no such programming language named C+. There is C# and C++. Thought I would mention that
so what major would be in a A+ ? or dealing with hardware
A community college diploma comes close.
A+ is like a basic mechanic certification. You can change the oil and sparkplugs.
Computer Engineering has two disciplines: hardware and software. Hardware is the guy who designs the car, engine, etc.. Software is the guy who tunes the car's computer and electronics for maximum performance.
Computer Science has no car analogy. It is mathematics and programming (applied mathematics).
A+ gets you a job at Best Buy building PCs and installing new drives and RAM in PCs. It lands you a job that pays, at best, $10/hr. That is about $20,000/year.
Comp. Sci and Comp. Eng. will land you jobs starting in the $50k-60k range, depending on your location.
A+ is not a career.